Susceptibility of the red spider mite, Tetranychus telarius L. complex, to five acaricides
1976 - Volume: 18 Issue: 3 pages: 482-488
Keywords
Tetranychus telarius
Abstract
Five acaricides (Acrex, Kelthane, Neoron, Galicron and Tedion) were tested against a culture of Tetranychus telarius complex L. (red form) for their acaricidal action to find out an effective remedy for the control of this pest. The 24-hour LC50 values of Acrex, Kelthane, Neoron, Galicron and Tedion were 2.3 (r.97-2.67), 3.7 (2-40-5.57), 27 (15.70-46.44), 94 (47-188) and 550 (435.47-69+65) p.p.m., respectively. Statistical analysis showed that heterogeneity in response to both of Kelthane, Neoron and Galicron occurred among the individuals. In case of Acrex and Tedion, homogeneity was shown among the individuals in their susceptibility to these acaricides. These records indicate that Acrex was more toxic to the tested spider mite, followed by Kelthane, Neoron, Galicron and finally Tedion.
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