How to cite this article:
RadoslavAndreev, Hristina Kutinkova, and Donka Rasheva. 2012. Non-chemical control of Aphis spiraecola patch. and Dysaphis plantaginea pass. on apple. Journal ofBiopesticides, 15(0):239-242.
Non-chemicalmethods for control of the most important aphids on apple in Bulgaria, rosyapple aphid (Dysaphis plantaginea Pass.) and spiraea aphid (Aphisspiraecola Patch.), were evaluated under field conditions in the regionof Plovdiv (Central-South Bulgaria). Two treatments with the kaolin containingproduct, SurroundâWP, applied in October, significantly reduced thenumber of winter eggs of D. plantaginea. Its effectiveness was comparableto that of the defoliation of apple trees. The botanical insecticides Neem AzalT/S (azadirachtin) and Pyretrum FS EC (pyrethrum) showed an excellenteffectiveness against rosy apple aphid but were ineffective againstspiraea aphid. The microbial insecticides Naturalisâ (Beauveria bassiana)and Preferal WG (Paecilomyces fumosoroseus) had a delayed initialeffect. However, on five to seven days after treatment, these pesticides showeda very good effectiveness against A. spiraecola and excellenteffectiveness against D. plantaginea.
How to cite this article:
RadoslavAndreev, Hristina Kutinkova, and Donka Rasheva. 2012. Non-chemical control of Aphis spiraecola patch. and Dysaphis plantaginea pass. on apple. Journal ofBiopesticides, 15(0):239-242.
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