Particularităţile acţiunii unor produse de uz fitosanitar în combaterea dăunătorilor prunului

Abstract

Plum plantations are attacked by various sucking pest species as: Hyalopterus pruni Geoffr., Parthenolecanium corni Bouche, Sphaerolecanium prunastry F., etc. From pests defoliated most common are: Yponomeuta padellus L., Lymantria dispar L., Orgyia gonostigma L., moths tortricide, etc. But the most dangerous are considered pests larvae that attack the fruit in which hey are doing galleries, destroying pulp and seeds. Among the most common and harmful species of plum fruit are Hoplocampa spp., Eurytoma schreineri Schr., Cydia Funebrana Tr., Cydia molesta Busck. The pest plum high results were received using both doses 1,5-2,0 l/ha insecticide Gorzi 400 EC, which provides an absolute reduction of the attacking Cydia Funebrana Tr., Hoplocampa spp. - 96,45 to 93,36% and 100,0 to 95,93%, Eurytoma schreineri Schr., - 93,71 and 96,34%, Epicometis hirta Poda - 100,0 to 91,12%.