%0 Journal Article %J Acarologia %D 1991 %T Effect of forest fertilization on the spruce spider mite Oligonychus ununguis (Jacobi) (Acarina, Tetranychidae) %V 32 %N 2 %@ 139-143 %I Les Amis d'Acarologia %A Loyttyniemi, K. %A Heliovaara, K. %U https://www1.montpellier.inrae.fr/CBGP/acarologia/article.php?id=2433 %8 1991-06-30 %K Oligonyghus ununguis %K Pigea abies %K nitrogen %K pest control %K Finland