The objective of field trial presented in this paper were to establish in what measure the NeemAzal-T/S (1% azadirachtin A) insecticide has effect on vitality of Lymantria dispar caterpillars, when it is applied as emulsion of 0.5%, 1%, 2% and 2% emulsion mixed with 0.1% raps oil or with 1% Bacillus thuringiensis var. aizawai. At three days of contact with treated leafs, caterpillars do not consumed with pleasure the food and at five days do not eat anymore. The total extinction appear after 13 th days. The higher efficiency had the combination 2% NA+1%Bta.

NeemAzal-T/S; caterpillars; Lymantria dispar

Presentation: oral