The effectiveness of insecticide Neemazal T/S 1%e.c. for protection of common China-aster (Callistephus chinensis (L.)) seedlings against onion thrips (Thrips tabaci (Lind.))

Abstract

Neemazal T/S 1%e.c. is quite new insectoacaricide appeared in Lithuanian market. The product is exclusive due to its active ingredient azadirachtin A which is derived on botanical background, Also it is listed for use even in certified organic production. The product registered mainly for protection of greenhouse crops against thrips, aphids, whitefly, spider mites. Neemazal T/S 1%e.c. in the trial was applied for protection seedlings of widely grown ornamental plant common China-aster (Callistephus chinensis (L.)) against onion thrips (Thrips tabaci (Lind.)). Three different concentrations of the spraying solution were applied (0,5%, 0,3% and 1%). The calculation of the pests accomplished before application and repeated 7 days after treatment. The efficiency of Neemazal T/S 1%e.c. for protection of common China-aster seedlings against onion thrips was compared with efficiency of systemic insecticide Actara 25%w.g. The effectiveness of Neemazal T/S 1%e.c. in the trial corresponded with efficiency of Actara 25%w.g.