Evoluţia lepidopterelor dăunătoare plantelor horticole în anii 2008–2010 în Republica Moldova

Abstract

According to observations and multiannual research was studied evolution of harmful lepidopteras of orchards, vineyards and vegetables. It has been found that some species of harmful lepidopteras each year cause considerable damage in horticultural field in R. Moldova. Most important harmful lepidopteras in years 2008-2010 were: from among pests polyphagous – Mamestra brassicae L., Agrotis segetum Den et Schiff., Helicoverpa armigera Hbn.; apple – defoliation Adoxophyes reticulana Hb. and carpophagous Cydia pomonella L.; pear – C. pyrivora Danil.; plum tree – C. funebrana Tr.; peach – C.molesta Busck and Anarsia lineatella Zell.; cabbage – Plutella maculipennis Curt.; grape-vine – Eupoecilia ambiguella Hb. and Lobesia botrana Den. et 345 Schiff. Exceeding the economic threshold of pest species is due non-compliance technology of host plants. Climatic conditions are favorable for annual evolution of pests and appearance another after multiyearly depression.