1Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal Goiás (UFG), 74690-900, Goiânia, Goiás, Brazil & TEIA - Laboratório de Taxonomia, Ecologia e Interações de Aracnídeos, Departamento de Ecologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, UFG, Campus II, 74690-900, Goiânia, Goiás, Brazil.
2Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal Goiás (UFG), 74690-900, Goiânia, Goiás, Brazil & TEIA - Laboratório de Taxonomia, Ecologia e Interações de Aracnídeos, Departamento de Ecologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, UFG, Campus II, 74690-900, Goiânia, Goiás, Brazil.
3✉ Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal Goiás (UFG), 74690-900, Goiânia, Goiás, Brazil & TEIA - Laboratório de Taxonomia, Ecologia e Interações de Aracnídeos, Departamento de Ecologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, UFG, Campus II, 74690-900, Goiânia, Goiás, Brazil.
2026 - Volume: 66 Issue: 3 pages: 751-769
https://doi.org/10.24349/nyz4-jki2Brazilian citriculture plays a major role in the national economy, as the country is among the world's leading citrus producers and exporters (USDA 2024). Although citrus crops are distributed across several states, the southeastern region concentrates most producers in Brazil (EMBRAPA 2024). In recent years, however, citrus cultivation has expanded to other regions, particularly in the state of Goiás, where production has increased significantly (EMBRAPA 2024). The citrus market in Goiás continues to grow due to fruit quality and favorable geographic conditions, as warmer and drier climates are more suitable for Pera sweet orange cultivation (Castro et al. 2014). Goiás is currently the largest orange producer in the Brazilian Midwest, with yields five times higher than those of Mato Grosso do Sul, the second-largest producer in the region (IBGE 2024). The main cultivated citrus species belong to the genera Citrus, Fortunella, and Poncirus (Rutaceae), which are characterized by arboreal trees bearing fleshy fruits from several cultivars (EMBRAPA 2024).
Pera sweet orange crops are predominantly cultivated in monoculture systems, which substantially reduce ecological niches. Under such conditions, few species are able to benefit from crop association or to survive and reproduce under intensive management practices (Tscharntke et al. 2005). Several arthropods, particularly phytophagous species, can colonize these crops, and their high population growth rates may lead to considerable economic losses for producers (Culliney et al. 2014). Among arthropod pests, phytophagous mites (Arachnida: Acariformes) are responsible for significant damage to agricultural crops (Moraes et al. 2024). These mites possess modified chelicerae that form stylets, allowing them to access the cytoplasmic contents of plant cells (Moraes et al. 2024). They are widely distributed and occur on numerous plant species in both cultivated and natural environments. Their feeding activity can damage leaves, flowers, fruits, and branches, and some species also act as vectors of plant pathogens (Druciarek and Tzanetakis 2025). The type and severity of symptoms vary according to species, population density, developmental stage, feeding site, and duration of infestation (Pinheiro et al. 2008).
In Brazilian citrus orchards, the main phytophagous mite species include: (i) Eriophyidae: Phyllocoptruta oleivora (Ashmead, 1879) (rust mite), Aceria sheldoni (Ewing, 1937) (egg mite), and Tegolophus brunneus Flechtmann, 1999 (brown mite); (ii) Tenuipalpidae: Brevipalpus yothersi Baker, 1949 (citrus leprosis mite); (iii) Tetranychidae: Panonychus citri (McGregor, 1916) (red mite) and Tetranychus mexicanus (McGregor, 1950) (Mexican mite); and (iv) Tarsonemidae: Polyphagotarsonemus latus (Banks, 1904) (tropical white mite) (Moraes et al. 2024).
Predatory mites, in turn, have received considerable attention in biodiversity surveys because of their potential use in biological control programs. These include both specialist species that prey on specific mite groups and generalist species with broad diets that include mites, insects, pollen, fungi, nematodes, and other resources (McMurtry et al. 2013). By regulating pest populations, predatory mites can reduce the need for pesticide applications in agroecosystems (Silva et al. 2004). In citrus crops, the most common predatory mites belong to the genera Iphiseiodes and Euseius (Phytoseiidae) (Reis et al. 2000a; Silva et al. 2012).
Given the extensive conversion of native habitats to agricultural land (Klink and Machado 2005) and the economic losses caused by phytophagous mites in different crops (Moraes et al. 2024), biodiversity inventories are essential for understanding the occurrence and population dynamics of mite species in orchards. In addition, knowledge of pest species and their natural enemies supports the development of more effective, economical, and environmentally sustainable integrated pest management programs. In this study, we present a survey of plant mite species in Pera sweet orange (Citrus sinensis L. Osbeck, Rutaceae) orchards from several farms in Goiás State, Brazil. Our inventory expands current knowledge of mite occurrence and distribution in Brazilian citrus cultivation, with emphasis on phytophagous and predatory species in the state of Goiás.
We sampled 20 rural farms producing Pera sweet orange located in the Cerrado domain, within the municipalities of Itaberaí, Itauçu, and Itaguaru, Goiás State, Brazil (Figure 1). Sampling was conducted between June and July 2019, corresponding to the dry and cold season in the Cerrado region (Oliveira and Marquis 2002). The selected farms represented a range of production systems and agricultural practices (Table 1). Seventeen farms followed conventional, intensive management practices, including the use of controlled irrigation systems and the periodic application of pesticides and inorganic fertilizers. The remaining farms operated under a Brazilian family farming structure, characterized by polyculture systems, lower environmental impact, and more sustainable production approaches (e.g., permaculture). Geographic coordinates of each orchard were recorded using a GPS device (Table 1).
Download as * Information concerning the pesticides applied in the orchards was provided by the rural producers from each property.
Orchard
Latitude
Longitude
Crop system
Pesticides*
Orchard 1
15°57’58’’ S
49°43’16’’ W
Monoculture
Abamectin; mineral oil; sulfur; acephate
Orchard 2
16°3’42’’ S
49°57’34’’ W
Polyculture (Papaya; passion fruit)
Abamectin; sulfur; azoxystrobin + cyproconazole; difenoconazole + petroleum naphtha
Orchard 3
16°2’54’’S
49°57’15’’ W
Monoculture
Abamectin; spirodiclofen; mineral oil
Orchard 4
16°3’56’’ S
49°46’25’’ W
Monoculture
Abamectin; spirodiclofen; sulfur; deltamethrin; acephate
Orchard 5
16°5’38’’ S
49° 43’ 54’’ W
Monoculture
Abamectin; spirodiclofen; sulfur; deltamethrin; acephate
Orchard 6
16°6’23’’ S
49°41’38’’ W
Monoculture
Abamectin; sulfur
Orchard 7
16°4’20’’S
49°57’29’’W
Polyculture (Mango; guariroba; corn; banana; pineapple)
Abamectin; mineral oil; sulfur; imidacloprid
Orchard 8
16°1’13’’S
49°58’59’’W
Monoculture
Abamectin; mineral oil; azoxistrobina; imidacloprid + beta-cyfluthrin; imidacloprid; trifloxystrobin + tebuconazole
Orchard 9
16°0’27’’S
49°56’38’’W
Monoculture
Sulfur
Orchard 10
16°3’19’’S
49°57’29’’W
Monoculture
Sulfur; imidacloprid; spiromesifen
Orchard 11
16°0’20’’S
49°49’18’’W
Monoculture
Abamectin; sulfur; imidacloprid; trifloxystrobin + tebuconazole; bifenthrin
Orchard 12
16°0’27’’S
49°50’17’’W
Monoculture
Abamectin; sulfur; imidacloprid; trifloxystrobin + tebuconazole; bifenthrin
Orchard 13
16°2’10’’S
49°57’6’’W
Monoculture
NA
Orchard 14
15°48’10’’S
49°47’27’’W
Polyculture (Corn)
Abamectin; sulfur; imidacloprid; trifloxystrobin + tebuconazole; bifenthrin
Orchard 15
15°51’31’’S
49°36’8’’W
Monoculture
Abamectin; sulfur; imidacloprid; trifloxystrobin + tebuconazole; bifenthrin
Orchard 16
15°52’5’’S
49°36’39’’W
Monoculture
Abamectin; sulfur; imidacloprid; trifloxystrobin + tebuconazole; bifenthrin
Orchard 17
16°1’57’’S
49°58’37’’W\
Monoculture
Abamectin; mineral oil; azoxystrobin + cyproconazole; imidacloprid + beta-cyfluthrin; imidacloprid; trifloxystrobin + tebuconazole
Orchard 18
16°10’44’’S
49°44’36’’W
Monoculture
NA
Orchard 19
16°11’12’’S
49°43’34’’W
Monoculture
NA
Orchard 20
16°1’3’’S
49°57’32’’W
Monoculture
Sulfur
In each citrus farm, we randomly sampled 20 leaves from the middle section of the canopy of five C. sinensis individuals. Each sampled plant was located at least 20 meters from the next one. Leaves extracted from each plant were placed in individual 1.5 L containers with 30% alcohol. Then, each container was shaken vigorously for 20 seconds to completely wash the leaves and remove the mites. Afterwards, the leaves were removed, and the sample was transferred to a 25-micrometer sieve, following Rezende and Lofego (2011). The mites retained on the sieve were transferred to plastic pots containing 70% alcohol, individualized by plant. Each pot was appropriately labeled to represent the mite assemblage of a different citrus tree sampled in the orchard.
In the laboratory, the samples were transferred to Petri dishes and observed under a stereomicroscope. All mites found were mounted on microscope slides with Hoyer's medium (Moraes et al. 2024). The mites were identified and quantified using phase-contrast microscopy and dichotomous keys for genus level (e.g., Amrine et al. 2003; Chant and McMurtry 2007; Mesa et al. 2009; Skvarla et al. 2014; Fan et al. 2016; Silva et al. 2016; Moraes et al. 2024) and species level (e.g., Pritchard and Baker 1955; Gutierrez and Schicha 1983; Mattos and Feres 2009; Xue et al. 2010; Beard et al. 2015; Beard et al. 2018; Lofego et al. 2024), as well as by consulting taxonomists. To validate the correct identification of species from the families Tenuipalpidae, Tarsonemidae, Tetranychidae, and Phytoseiidae, we sent material to the experts Aline D. Tassi (University of Florida, USA), Antonio C. Lofego (UNESP, São José do Rio Preto, São Paulo), Carlos H. W. Flechtmann (ESALQ, USP, Piracicaba, São Paulo), and Peterson R. Demite (Instituto Federal de Educação, Ciência e Tecnologia de Roraima, Bonfim, Roraima), respectively. The identification of Raoiella indica (Tenuipalpidae) was performed by Elizeu B. Castro (UNESP, Rio Claro, São Paulo). The feeding behavior of the plant mite species was determined according to McMurtry et al. (2013) and Moraes et al. (2024). All sampled specimens were deposited in the Zoological Collection of the Universidade Federal de Goiás (ZUFG).
Here, we present a list of plant mite species sampled in C. sinensis orchards in Goiás State, along with information on the number of individuals sampled (sampling date in parentheses), previous records in Brazilian citrus orchards, and the biomes and crop systems in which species previously recorded in citriculture were found. We also include general observations about the sampled taxa. The following abbreviations were adopted: (f) female, (m) male, and (i) immature (nymphs and larvae).
We sampled 16,130 mites from 26 species, 24 genera, and 11 families in C. sinensis orchards in Goiás State, Brazil (Table 2). The recorded families were Acaridae (1 species), Cunaxidae (1), Eriophyidae (1), Iolinidae (1), Phytoseiidae (7), Stigmaeidae (2), Tarsonemidae (2), Tenuipalpidae (2), Tetranychidae (6), Tydeidae (2), and Winterschmidtiidae (1). Acaridae was not identified at the species level, while individuals from the Cunaxidae, Iolinidae, Stigmaeidae, and Winterschmidtiidae families were identified at the genus level.
Download as * Orchards where high populations of the mite species were recorded. ¹ Feeding behavior of identified species: UN (unknown); PR (Predatory); PH (Phytophagous), and MY (Mycophagous). ² Code of orchards sampled for mite collection according to Table 1. ³ Number of damaged individuals and immatures identified to the family level (NDI).
Mites
FB¹
Orchards²
Abundance
NDI³
Acaridae
UN
2, 3, 4, 5, 7, 8
6
2
Cunaxidae
PR
1, 17
2
0
Cunaxa sp.
Eriophyidae
196
Phyllocoptruta oleivora
PH
2, 4, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 19
157
Iolinidae
0
Parapronematus sp.
UN
1, 16
5
Phytoseiidae
215
Amblyseius acalyphus
PR
1, 2, 8, 12
6
Amblyseius tamatavensis
PR
3, 5, 6, 8, 12, 20
14
Euseius concordis
PR
1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 18, 19
175
Iphiseiodes zuluagai
PR
1, 2, 3*, 5, 6, 7, 9,10, 11, 12, 13, 17, 18, 19, 20
270
Neoseiulus idaeus
PR
18* ,19
28
Phytoscutus sexpilis
PR
3
1
Typhlodromips sp.
PR
6
1
Stigmaeidae
1
Agistemus sp.
PR
2
1
Zetzellia sp.
PR
19
1
Tarsonemidae
7
Fungitarsonemus sp. 1
UN
2, 7, 8, 13, 18, 19, 20
27
Fungitarsonemus sp. 2
UN
2, 19
2
Tenuipalpidae
27
Brevipalpus yothersi
PH
1, 2*, 9, 12, 13, 19
86
Raoiella indica
PH
7
1
Tetranychidae
6.192
Allonychus sp.
PH
4, 18
4
Eutetranychus banksi
PH
1, 2*, 3, 4, 6, 7, 9, 10, 12, 13, 14, 16, 18, 19, 20
2.449
Mononychellus sp.
PH
2, 4 ,19
3
Panonychus citri
PH
2, 3, 4, 6, 7, 8, 9, 10, 11, 12*, 13, 14, 16, 17, 18, 19, 20
4.569
Sonotetranychus sp.
PH
2
1
Tetranychus mexicanus
PH
1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18*, 19, 20
1.668
Tydeidae
2
Brachytydeus formosus
UN
2, 7, 13
3
Brachytydeus sp.
UN
3
2
Winterschimidtiidae
2
Czenspinskia sp.
MY
1, 2, 3
4
Total
9486
6644
Of the 16,130 mites sampled, 9,427 were identified at the species level. The remaining mites, including damaged individuals (n = 26) and immatures (n = 6,614), were quantified and identified at the family level (Table 2).
Among the identified mites, nine species were phytophagous, 10 were predatory, one was mycophagous, and six species had unknown feeding behavior (Table 2). Phytophagous mites were the most abundant in our samples, with 15,353 individuals (95.2%), while predatory mites were represented by 715 individuals (4.4%).
The synthesis is presented as a species list of mites sampled in citrus orchards from Goiás State, Brazil.
Unidentified species
Examined material — Itaberaí, Goiás – 2f (07-VI); 1f and 1i (21-VI); 2f and 2i (22-VII).
Examined material — Itaberaí, Goiás – 1f (29-VII) and 1 adult of undetermined sex (07-VII).
Examined material — Itaberaí – 7f, 1m and 5 adults of undetermined sex (07-VI); 6f and 1m (21-VI); 9f and 1m (07-VII); 89f and 14m (22-VII); 16f and 1m (30-VII); Itaguaru – 2f (29-VII); Itauçu – 4f and 1m (30-VII).
Previous records in citriculture — Amazonas – Iranduba (Ferreira et al. 2018) and Manaus (Bobot et al. 2006, 2011; Ferreira et al. 2018); Bahia – Cruz das Almas (Nascimento et al. 1977), locality not informed (Coelho et al. 1977) and Rio Real (Noronha et al. 2001); Minas Gerais – Comendador Gomes (Morais 2019), Frutal (Morais 2019), Janaúba (Damasceno 2008) and Prata (Morais 2019); Rio Grande do Sul – Arvorezinha (Horn et al. 2011) and Taquari (Azambuja and Silva 1982; Moraes et al. 1995); Rio de Janeiro – Itatiaia (Navia et al. 2021) and Seropédica (Cordeiro et al. 1991); Santa Catarina – Águas de Chapecó (Chiaradia 2001) and Chapecó (Chiaradia 2001); São Paulo – Barretos (Morais 2019), Bebedouro (Scarpellini and Santos 1997), Borebi (Morais 2019), Cajobi (Morais 2019), Cordeirópolis (Morais 2019), Descalvado (Silva et al. 2012), Gavião Peixoto (Morais 2019), Ibaté (Morais 2019), Itirapina (Morais 2019), Jaboticabal (Romano et al. 1977; Oliveira et al. 1982; Oliveira 1985), Jaguariúna (Albuquerque 2006), Limeira (Oliveira Filho et al. 1980; Mariconi et al. 1986; Rangel et al. 1993), locality not informated (Chiavegato 1968), Marília (Morais 2019), Mogi-Guaçú (Morais 2019), Monte Alto (Morais 2019), Piracicaba (Carvalho et al. 1980; Marques and Moraes 1991), Pirassununga (Morais 2019), Reginópolis (Morais 2019), Rincão (Morais 2019), Santo Antônio de Posse (Fogaça et al. 1991), Santa Fé do Sul (Barbara and Romagnoli 2019), São Manuel (Morais 2019), São Pedro (Raetano and Matuo 1999), Tabatinga (Morais 2019), Taiúva (Oliveira and Oliveira 1991), Taquaral (Morais 2019), Taquaritinga (Gravena et al. 2006),Tietê (Hamamura et al. 1989) and Urupês (Morais 2019); Sergipe – Santa Luzia do Itanhy (Navia et al. 2021) and Umbaúba (Carvalho et al. 2016; Silva et al. 2017; Teodoro et al. 2019; Carvalho et al. 2020; Martins et al. 2020).
Biomes — Amazon Forest (Bobot et al. 2006, 2011; Ferreira et al. 2018); Cerrado (Oliveira Filho et al. 1980; Oliveira et al. 1982; Mariconi et al. 1986; Hamamura et al. 1989; Rangel et al. 1993; Morais 2019); Atlantic Forest (Nascimento et al. 1977; Carvalho et al. 1980; Azambuja and Silva 1982; Cordeiro et al. 1991; Fogaça et al. 1991; Moraes et al. 1995; Chiaradia 2001; Albuquerque 2006; Gravena et al. 2006; Horn et al. 2011; Carvalho et al. 2016; Silva et al. 2017; Barbara and Romagnoli 2019; Morais 2019; Teodoro et al. 2019; Carvalho et al. 2020; Martins et al. 2020; Navia et al. 2021).
Crop systems — Monoculture (Oliveira Filho et al. 1980; Oliveira et al. 1982; Mariconi et al. 1986; Hamamura et al. 1989; Moraes et al. 1995; Raetano and Matuo 1999; Chiaradia 2001; Bobot et al. 2011; Horn et al. 2011; Silva et al. 2012; Carvalho et al. 2016; Ferreira et al. 2018; Barbara and Romagnoli 2019; Morais 2019; Teodoro et al. 2019; Carvalho et al. 2020; Martins et al. 2020); polyculture (Silva et al. 2017).
Observations — This species is commonly known as the citrus rust mite. Leaves and fruits display characteristic darkening when high infestations occur, which can result in yield and fruit weight losses in citrus crops, thus negatively impacting the fresh fruit trade (Chiavegato 1991). High humidity and temperature favor increases in P. oleivora populations (Vacante 2010; Moraes et al. 2024). Therefore, the low number of P. oleivora observed in the evaluated citrus crops can be explained by the fact that sampling was conducted during the driest and coldest season. A higher abundance of P. oleivora occurred in two orchards that adopted different production systems: 47 individuals were sampled in Orchard 2, a polyculture system, and 45 individuals in Orchard 12, a monoculture (Table 2).
Examined material — Itaberaí – 4f (07-VII); Itaguaru – 1f (29-VII).
Examined material — Itaberaí – 1f (07-VI); 1f (07-VII); 4f (22-VII).
Previous records in citriculture — Espírito Santo – Colatina (Demite et al. 2025b) – Roraima – Caracaraí (Figueirêdo et al. 2019) and Caroebe (Figueirêdo et al. 2019).
Biomes — Amazon Forest (Figueirêdo et al. 2019) and Atlantic Forest (Demite et al. 2025b).
Crop systems — Not available.
Observations — This marks the first record of A. acalyphus in citrus crops from Goiás State. This species is usually reported in native plants from more preserved natural vegetation remnants. Demite et al. (2017) recorded this predatory species on native Cerrado trees, such as Protium spruceanum Engl (Burseraceae), Bauhinia ungulata L. (Leguminosae), Psidium guajava L. (Myrtaceae) and Brosimum gaudichaudii Trécul (Moraceae), in a rural area in southeastern Goiás. In our study, A. acalyphus was found in low abundance and predominantly occurred in extensive citrus monocultures (Table 2).
Examined material — Itaberaí – 5f (07-VI); 4f (21-VI); 4f (22-VII); 1f (30-VII).
Previous records in citriculture — Roraima – Amajari (Figueirêdo et al. 2019), Caroebe (Figueirêdo et al. 2019) and Pacaraima (Figueirêdo et al. 2019).
Biomes — Amazon Forest (Figueirêdo et al. 2019).
Crop systems — Not available.
Observations — First record of A. tamatavensis in citrus crops from Goiás State. This species was originally described from Citrus hystrix (Rutaceae) on Madagascar Island (Blommers 1974). Amblyseius tamatavensis is a native predatory species with documented potential to control Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) (Cavalcante et al. 2017). In the present study, A. tamatavensis was recorded exclusively in monoculture citrus orchards (Table 2).
Examined material — Itaberaí – 24f and 2m (07-VI); 27f and 2m (21-VI); 19f and 3m (07-VII); 55f and 7m (22-VII); 26f (30-VII). Itauçu – 9f and 1m (30-VII).
Previous records in citriculture — Roraima – Boa Vista (Marsaro Júnior et al. 2012), Caracaraí (Figueirêdo et al. 2019), Caroebe (Figueirêdo et al. 2019) and São João da Baliza (Figueirêdo et al. 2019); São Paulo – Descalvado (Silva et al. 2011; Silva et al. 2012), Jaboticabal (Silva et al. 2011) and Presidente Prudente (Sato et al. 2001).
Biomes — Amazon Forest (Marsaro Júnior et al. 2012; Figueirêdo et al. 2019); Cerrado (Silva et al. 2011; Silva et al. 2012).
Crop systems — Monoculture (Silva et al. 2011; Marsaro Júnior et al. 2012)
Observations — Euseius concordis is a predatory mite usually found associated with as Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae) and P. oleivora, what suggests its potential as a bioagent for controlling these pests on citrus crops (Moraes and McMurtry 1983). Euseius concordis was recorded in 14 of the 20 sampled orchards, two of which are polyculture systems (Table 2).
Examined material — Itaberaí – 6f and 2m (07-VI); 6f and 4m (21-VI); 15f and 5m (07-VII); 174f, 42m and 1i (22-VII); 7f and 7m (30-VII). Itauçu – 1f (30-VII).
Previous records in citriculture — Amazonas – Manaus (Ferreira et al. 2018) and Iranduba (Ferreira et al. 2018); Espírito Santo – Colatina (Demite et al. 2025b); Minas Gerais – Lavras (Reis et al. 2000a; Reis et al. 2003); Rio Grande do Sul – Taquari (Horn et al. 2011) and Montenegro (Morais et al. 2007); Roraima – Boa Vista (Marsaro Júnior et al. 2012), Amajari (Figueirêdo et al. 2019), Caracaraí (Figueirêdo et al. 2019), Caroebe (Figueirêdo et al. 2019), Iracema (Figueirêdo et al. 2019), Mucajaí (Figueirêdo et al. 2019), Pacaraima (Figueirêdo et al. 2019) and Uiramutã (Figueirêdo et al. 2019); São Paulo – Descalvado (Silva et al. 2012), Piracicaba (Albuquerque and Moraes 2008; Zanardi et al. 2017) and Presidente Prudente (Sato et al. 2001); Sergipe – Umbaúba (Silva et al. 2017).
Biomes — Amazon Forest (Marsaro Júnior et al. 2012; Ferreira et al. 2018; Figueirêdo et al. 2019); Atlantic Forest (Reis et al. 2000a; Reis et al. 2003; Albuquerque and Moraes 2008; Silva et al. 2017; Demite et al. 2025b); Pampa (Horn et al. 2011); Cerrado (Silva et al. 2012; Zanardi et al. 2017).
Crop systems — Monoculture (Reis et al. 2000a; Morais et al. 2007; Marsaro Júnior et al. 2012; Silva et al. 2012; Zanardi et al. 2017; Ferreira et al. 2018); Polyculture (Silva et al. 2017).
Observations — High populations of I. zuluagai are usually reported in Brazilian citrus orchards (Reis et al. 2000a). Previous studies have evaluated the potential of this predatory mite to control mites from the Tenuipalpidae and Eriophyidae families (Yamamoto and Gravena 1996). Reis et al. (2003) recorded the predation efficacy of I. zuluagai on B. phoenicis under laboratory conditions. According to McMurtry et al. (2013), I. zuluagai is classified as a type III predator that consumes mites, pollen, and sweet compounds (Yamamoto and Gravena 1996; Reis et al. 2003). This species was the most frequently sampled predatory mite, being found in 15 of the 20 orchards evaluated. Of the 270 individuals sampled, 179 were found in only one orchard (Table 2).
Examined material — Itaberaí – 21f and 6m (30-VII). Itauçu – 1f (30-VII).
Previous records in citriculture — Bahia – Rio Real (Noronha et al. 1997); Pernambuco – Petrolina (Moraes and McMurtry 1983).
Biomes — Caatinga (Moraes and McMurtry 1983; Noronha et al. 1997); Atlantic Forest (Noronha et al. 1997).
Crop systems — Monoculture (Moraes and McMurtry 1983; Noronha et al. 1997).
Observations — This predatory mite is specialized on preying upon Tetranychidae mites, but it can also feed on pollen and other mite species (McMurtry et al. 2013), suggesting its potential as an agent in biocontrol of phytophagous pests on crops. Neoseiulus idaeus is typically found in arid environments, and low relative air humidity increases the survival rate of this species (Sousa Neto et al. 2020). This is consistent with the sampling period for this species in our study. This predatory mite was found in monoculture citrus crops, with 26 out of 27 samples coming from a single orchard (Table 2).
Examined material — Itaberaí – 1f (22-VII).
Previous records in citriculture — Bahia – Rio Real (Noronha et al. 1997); Sergipe – Cristianópolis (Noronha et al. 1997).
Biomes — Caatinga and Atlantic Forest (Noronha et al. 1997).
Crop systems — Monoculture (Noronha et al. 1997).
Observations — Phytoscutus sexpilis was only previously recorded in Brazilian citrus orchards in the states of Bahia and Sergipe by Noronha et al. (1997). Thus, this is the first report of P. sexpilis in citrus crops in the state of Goiás and the Cerrado domain.
Examined material — Itaberaí – 1f (21-VI).
Examined material — Itaberaí – 1f (22-VII).
Examined material — Itauçu – 1f (30-VII).
Examined material — Itaberaí – 2f (07-VI); 10f and 9m (22-VII); 3f and 2m (30-VII). Itauçu – 1m (30-VII).
Examined material — Itaberaí – 1f (22-VII). Itauçu – 1f (30-VII).
Examined material — Itaberaí – 81f (22-VII); 4f (07-VII). Itauçu – 1f (30-VII).
Previous records in citriculture — Amazonas – Manaus (Ferreira et al. 2018) and Iranduba (Ferreira et al. 2018); Bahia – Cruz das Almas (Ferreira et al. 2020); Mato Grosso do Sul – Terenos (Sánchez-Velázquez et al. 2015); Minas Gerais – Pouso Alegre (Sánchez-Velázquez et al. 2015) and Lavras (Sánchez-Velázquez et al. 2015); Pará – São José Castanhal (Sánchez-Velázquez et al. 2015) and Capitão Poço (Sánchez-Velázquez et al. 2015); Piauí – Teresina (Chabi-Jesus et al. 2018); Roraima – Normandia (Figueirêdo et al. 2019); São Paulo – São José do Rio Preto (Sánchez-Velázquez et al. 2015); Jaboticabal (Sanches et al. 2018; Andrade et al. 2019; Della Vechia et al. 2019; Amaral et al. 2020), Reginópolis (Andrade et al. 2010; Andrade et al. 2011), Taquaral (Andrade et al. 2018), Santa Cruz do Rio Pardo (Amaral et al. 2018; Bassanezi et al. 2019), Barretos and Jales (Amaral et al. 2018); Tocantins – Gurupi and Palmas (Sánchez-Velázquez et al. 2015).
Biomes — Amazon Forest (Sánchez-Velázquez et al. 2015; Ferreira et al. 2018; Figueirêdo et al. 2019); Atlantic Forest (Andrade et al. 2010; Sánchez-Velázquez et al. 2015; Amaral et al. 2018; Bassanezi et al. 2019; Ferreira et al. 2020); Cerrado (Sánchez-Velázquez et al. 2015; Andrade et al. 2018; Sanches et al. 2018; Andrade et al. 2019; Della Vechia et al. 2019; Amaral et al. 2020).
Crop systems — Monoculture (Andrade et al. 2011; Sánchez-Velázquez et al. 2015; Andrade et al. 2018; Chabi-Jesus et al. 2018; Ferreira et al. 2018; Sanches et al. 2018; Bassanezi et al. 2019); Polyculture (Sánchez-Velázquez et al. 2015).
Observations — Brevipalpus yothersi acts as a vector for CiLV-C virus in citrus crops, causing lesions in several plant organs, which can result in the death of the individual (Castillo et al. 2011; Ramos-González et al. 2018). Although it causes damage to citrus plants, we found low abundance of this phytophagous in the evaluated orchards. Orchard 2, a polyculture system, sheltered the higher B. yothersi abundance (78 individuals), but it also housed one of the higher mite species richness (14 species) in the samples (Table 2).
Examined material — Itaberaí – 1f (07-VI).
Previous records in citriculture — No records.
Biomes — No records.
Crop systems — No records.
Observations — This study reports the first record of R. indica in Brazilian citrus crops. However, this occurrence is probably accidental, since only one female was found in Orchard 7 (Table 2), a polyculture area with ''guariroba'' palm (Syagrus oleracea Becc., Arecaceae) and banana (Musa sp., Musaceae), both cultivated in the area (Table 1). Although R. indica has not been recorded on S. oleracea, this mite species can infest other plants in the family Arecaceae. On the other hand, this species is commonly associated with banana plants (Peña et al. 2012).
Examined material — Itaberaí – 1f and 1m (21-VI); 2i (30-VII).
Examined material — Itaberaí – 22f and 2m (07-VI); 3f and 3m (21-VI); 53f and 7m (07-VII); 1,621f, 298m and 3i (22-VII); 310f, 92m and 2i (30-VII). Itauçu – 32f and 1m (30-VII).
Previous records in citriculture — Amazonas – Manaus (Ferreira et al. 2018) and Iranduba (Ferreira et al. 2018); Rio Grande do Sul – Taquari (Horn et al. 2011); São Paulo – Descalvado (Silva et al. 2012); Sergipe – Umbaúba (Carvalho et al. 2016; Silva et al. 2017; Teodoro et al. 2019; Martins et al. 2020).
Biomes — Amazon Forest (Ferreira et al. 2018); Atlantic Forest (Horn et al. 2011); Cerrado (Silva et al. 2012; Carvalho et al. 2016; Silva et al. 2017; Teodoro et al. 2019; Martins et al. 2020).
Crop systems — Monoculture (Horn et al. 2011; Silva et al. 2012; Carvalho et al. 2016; Ferreira et al. 2018; Teodoro et al. 2019; Martins et al. 2020); Polyculture (Silva et al. 2017).
Observations — Eutetranychus banksi is commonly associated with citrus orchards and other agricultural crops in Brazil, where it is regarded as an economically important pest throughout the Americas (Gerson 2003). The species exhibits a highly aggregated spatial distribution, which hinders early detection and reduces the effectiveness of monitoring programs. This pattern can potentially increase foliar damage (López-Olmos and Ferragut 2024). In Spanish citrus agroecosystems, E. banksi has been reported as an invasive species capable of displacing resident tetranychid mites, leading to changes in community composition and dominance patterns (López-Olmos and Ferragut 2023). Eutetranychus banksi was found in 15 of the 20 sampled orchards. A total of 1,850 individuals were sampled in Orchard 2, a polyculture system in which papaya and passion fruit are also cultivated (Table 2).
Examined material — Itauçu – 3f (30-VII).
Examined material — Itaberaí – 380f and 54m (07-VI); 192f and 23m (21-VI); 8f and 2m (07-VII); 1734f, 337m and 6i (22-VII); 392f, 73m and 1i (29-VII); 520f, 47m and 3i (30-VII). Itaguaru – 6f (29-VII). Itauçu – 714f, 70m and 7i (30-VII).
Previous records in citriculture — Amazonas – Manaus (Bobot et al. 2011; Ferreira et al. 2018) and Iranduba (Ferreira et al. 2018); Minas Gerais – Viçosa (Matioli et al. 2009); São Paulo – Descalvado (Silva et al. 2012), Piracicaba (Ribeiro et al. 2014; Zanardi et al. 2015; Alves et al. 2018; Zanardi et al. 2018) and São Pedro (Raetano and Matuo 1999).
Biomes — Amazon Forest (Bobot et al. 2011; Ferreira et al. 2018), Atlantic Forest (Matioli et al. 2009; Ribeiro et al. 2014; Zanardi et al. 2018); Cerrado (Silva et al. 2012; Zanardi et al. 2015; Alves et al. 2018).
Crop systems — Monoculture (Raetano and Matuo 1999; Matioli et al. 2009; Bobot et al. 2011; Silva et al. 2012; Zanardi et al. 2015; Ferreira et al. 2018; Zanardi et al. 2018).
Observations — Panonychus citri is considered a key pest of citrus crops in several countries (Jamieson et al. 2005). In Brazil, P. citri is a sporadic pest during the autumn and winter (Flechtmann and Amante 1974; Silva et al. 2012). This mite causes silver spots on leaves during large infestations, leading to increased leaf drop and reduced plant production (Jamieson et al. 2005). Here, we found a great number of individuals during the coldest period of the year. Panonychus citri was sampled in 17 orchards (Table 2), with 1,858 individuals collected in orchard 2, where producers reported leaves with chlorotic spots symptoms and falling leaves.
Examined material — Itaberaí – 1f (22-VII).
Examined material — Itaberaí – 10f (07-VI); 193f, 77m and 2i (21-VI); 58f and 10m (07-VII); 479f and 49m (22-VII); 630f and 125m (30-VII). Itaguaru – 26f and 1m (29-VII). Itauçu – 7f and 1m (30-VII).
Previous records in citriculture — Amazonas – Manaus (Bobot et al. 2011; Ferreira et al. 2018) and Iranduba (Bobot et al. 2011; Ferreira et al. 2018); Rio Grande do Sul – Encantado (Horn et al. 2011), Arvorezinha (Horn et al. 2011) and Taquari (Horn et al. 2011); Sergipe – Umbaúba (Silva et al. 2015; Carvalho et al. 2016; Silva et al. 2017; Teodoro et al. 2019; Martins et al. 2020).
Biomes — Amazon Forest (Bobot et al. 2011; Ferreira et al. 2018); Atlantic Forest (Horn et al. 2011; Silva et al. 2015; Carvalho et al. 2016; Silva et al. 2017; Teodoro et al. 2019; Martins et al. 2020).
Crop systems — Monoculture (Horn et al. 2011; Silva et al. 2015; Carvalho et al. 2016; Ferreira et al. 2018; Teodoro et al. 2019; Martins et al. 2020); Polyculture (Silva et al. 2017).
Observations — A high abundance of T. mexicanus was found in the evaluated citrus orchards, with the highest numbers found in orchards 4, 14, and 18, from which 198, 368, and 757 individuals were collected, respectively (Table 2). Silva et al. (2016) found that population of T. mexicanus increases during dry periods, which align with our results for this species. Neoseiulus californicus (McGregor) is considered the most effective predator for controlling this phytophagous mite in crops (Moraes et al. 1986; McMurtry and Croft 1997).
Examined material — Itaberaí – 1f (07-VI); 2f (22-VII).
Previous records in citriculture — São Paulo – Descalvado (Silva et al. 2012); Rio Grande do Sul – Arvorezinha (Horn et al. 2011), Encantado (Horn et al. 2011) and Taquari (Horn et al. 2011).
Biomes — Cerrado (Silva et al. 2012); Atlantic Forest (Horn et al. 2011).
Crop systems — Monoculture (Horn et al. 2011; Silva et al. 2012).
Observations — Previously recorded as Lorryia formosa, Brachytydeus formosus is frequently found in Brazilian citrus orchards, although no economic damage has been attributed to this species in recent surveys (Horn et al. 2011; Silva et al. 2012). Here, B. formosus was recorded at low abundance in three citrus orchards. Two of these orchards had a polyculture system in which citrus plants were grown alongside other crops, such as passion fruit, papaya, mango, pineapple, gariroba, corn, and bananas (Table 2).
Examined material — Itaberaí – 2f (22-VII).
Examined material — Itaberaí – 1f (07-VII); 3f (22-VII).
The Tetranychidae and Phytoseiidae families showed the highest species richness and abundance, with 14,886 and 710 mites, and six and seven species sampled, respectively. The phytophagous species P. citri, E. banksi, and T. mexicanus were the most abundant mites in the evaluated citrus orchards, representing 53.8% of our samples.
Phytoseiidae, Stigmaeidae, and Iolinidae represented about 4.4% of the samples. These families consist of predatory species that feed on other mite species and insects (Moraes et al. 2024). Among predatory mites, Phytoseiidae were the most abundant and diverse, with I. zuluagai and E. concordis being the most representative species in the samples, accounting for 2.7% of the mites sampled in citrus crops.
Amblyseius acalyphus, A. tamatavensis, B. yothersi, E. banksi, E. concordis, I. zuluagai, B. formosus, N. idaeus, and T. mexicanus have been previously recorded in Goiás State, Brazil (Flechtmann and Moraes 2017; Demite et al. 2017, 2025a; Castro et al. 2025). Here, these species are reported for the first time in citrus orchards in the state. Additionally, P. citri, P. oleivora, and P. sexpilis were recorded for the first time in Goiás.
Panonychus citri was the most abundant phytophagous mite in citrus orchards in Goiás. This species is a secondary pest of Brazilian citrus (Oliveira et al. 2008). Its population increases under favorable weather conditions, especially when temperature and relative humidity are low (Flechtmann and Amante 1974; Silva et al. 2012). This increase is also associated with the extensive use of pesticides to control primary pests, which often have limited effects on secondary pests (Zanardi et al. 2018). Other Tetranychidae mites found at lower abundance in citrus orchards included T. mexicanus and E. banksi. These species are typically found in Brazilian citrus crops (Silva et al. 2012).
Although Tetranychidae mites were the most abundant phytophagous species in our samples, B. yothersi (Tenuipalpidae) and P. oleivora (Eriophyidae), which are considered the main citrus pests, are usually recorded in high numbers in Brazilian crops (Moraes et al. 2024). Brevipalpus yothersi acts as a vector of citrus leprosis virus (CiLV-C). Infection causes severe symptoms, including premature leaf and fruit drop, branch dieback, and significant yield losses in the year of transmission and the subsequent year (Moreira et al. 2022). In contrast, infestation by P. oleivora affect fruit appearance, reducing market value and interfering with the Pera sweet orange trade, especially exports (Chiavegato 1991). In our study, B. yothersi and P. oleivora were less abundant than Tetranychidae mites.
The Phytoseiidae family includes important predatory species that control phytophagous mites and insects in crops (McMurtry and Croft 1997; Reis et al. 2000b). In our study, Phytoseiidae was the most abundant and diverse predatory mite family in the sampled citrus orchards. Iphiseiodes zuluagai and E. concordis were the most abundant phytoseiid mites in our samples, and both species are commonly reported in high abundance in Brazilian citrus orchards (Reis et al. 2000a; Silva et al. 2012). Furthermore, I. zuluagai is known to be effective in controlling pest populations, such as P. oleivora, and is considered the most relevant predatory mite in citrus crops (Yamamoto and Gravena 1996; Reis et al. 2003). In contrast, some studies have identified E. concordis as a potential predator of B. phoenicis (Reis et al. 2000b; Silva et al. 2012).
Here, we report A. acalyphus for the first time in citrus orchards in Goiás State. Despite its low prevalence, previous studies have evaluated its potential to prey on citrus-associated mites, such as B. phoenicis, Tegolophus brunneus, and P. oleivora (Lofego and Moraes 2005; Morais 2019). Another phytoseiid species recorded in Goiás citrus crops, Amblyseius tamatavensis, has been suggested as a potential biocontrol agent for Bemisia tabaci on sweet pepper plants, reducing whitefly populations by approximately 80% under laboratory conditions (Cavalcante et al. 2017). Although B. tabaci is not a major citrus pest, the citrus blackfly Aleurocanthus woglumi causes significant damage to orchards (Gallo et al. 2002). Therefore, further studies are needed to evaluate the predation potential of A. tamatavensis on A. woglumi and the potential of A. acalyphus in citrus agroecosystems.
In addition to Phytoseiidae, species of the Stigmaeidae, especially those of the genera Agistemus and Zetzellia, are commonly found in citrus crops and may represent potential candidates for phytophagous mite biocontrol (Matioli et al. 2002).
Fauna inventories provide a more robust understanding of biodiversity in agroecosystems and support producers and specialists in adopting more effective and sustainable practices, such as biological control instead of chemical pesticides. Our study presents the first survey of mite species in C. sinensis orchards in Goiás State, contributing to knowledge of regional biodiversity. Among the 12 species identified at the species level, nine were recorded for the first time in citrus crops in the state. Furthermore, we report the first occurrence in Goiás of one predatory species, P. sexpilis, and two phytophagous species, P. citri and P. oleivora. Our results improve understanding of acarofauna in sweet orange crops and provide a valuable database for future biodiversity and pest management studies.
This research was financed by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, proc. 456538/2014-3). J. A. Reis received a scholarship from the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). We are grateful to Aline D. Tassi (University of Florida, USA), Antonio C. Lofego (UNESP, São José do Rio Preto, São Paulo), Carlos H. W. Flechtmann (ESALQ, USP, Piracicaba, São Paulo), Peterson R. Demite (Instituto Federal de Educação, Ciência e Tecnologia de Roraima, Bonfim, Roraima) and Elizeu B. Castro (UNESP, Rio Claro, São Paulo) for their valuable assistance in confirming the identification of mite species. We also thank Danillo A.V. Santos-Granzotti and Maria Victória Cordeiro Gama for reviewing the manuscript.

