[Influence of herbicides on structural changes of entomocomplex of the intensive type apple orchards]
2006
Koltun, N.E.,The National Academy of Sciences, Minsk (Belarus). Institute of Plant Protection
The data on quantitative and qualitative changes of entomocomplex of different type of apple orchards are presented. It is determined that a main danger for old construction orchards comes with Laspeyresia pomonella L, Operophthera brumata L, Hoplocampa testudinea Klug., Anthonomus pomorum L. In the intensive type orchards to the dominant pests refer Bryobia redicorzevi Reck., Metatetranychus ulmi Koch., Dysaphis plantaginea Pass., Hoplocampa testudinea Klug., Anthonomus pomorum L. As a result of evaluation the glyphosate-containing herbicides influence on entomocomplex of apple orchards it is determined that by herbicides application in stem strips and inter-row spacing fruit mite number is in 2,2-2,3 times increased, aphids -3,1-3,4 times in comparison with the variant where herbicides are not applied and predators number (mites from Phytoseiidae, family, predatory bug Himacerus apterus F., Coccinella septempunctata L, Syrpnus euchromus Kowarz., Campylomma verbasci M.-D., Anthocoris nemorum L., Chrysppa carnea Steph.) is in 1,3-4,2 times decreased. Herbicides application only in stem strips or only in inter-row spacing increases mites number in 1,3-1,6 times, aphids - in 1,4-1,8 times and does not render the negative influence on predators number
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