Effects of neem on Nezara viridula Mis à jour Populaire !

In this study, the effects of two different commercial
neem insecticides (NeemAzal T/S and Neem Oil) were
determined on different stages of Nezara viridula (L.)
(Heteroptera: Pentatomidae) under laboratory conditions.
Neem Azal and Neem Oil were applied at concentrations of
0.5 % and 2 %, respectively. Mortality was recorded after
3, 7 and 14 days for nymphs and adults; 7 and 14 days for
old (4-day-old) eggs; and 14 days for newly laid (one-dayold)
eggs.
Both products have no significant effect on adults and
newly laid eggs. However Neem Oil was found to be more
effective than NeemAzal T/S on nymphs and on old laid eggs
after 7 and 14 days.
It can be concluded that both neem products have
potential for insecticidal efficacy (approximately 60 %)
against nymphs of N. viridula. at concentrations recommended
by manufacturers for registered pests.