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Effects of two different neem products on different stages of Nezara viridula (L.) (Heteroptera, Pentatomidae)
- Durmusoglu, E., Karsavuran, Y., Ozgen, I., Guncan, A.
- Journal of pest science 2003 v.76 no.6 pp. 151-154
- Azadirachta indica, Nezara viridula, adults, eggs, insecticidal properties, insecticides, mortality, neem oil, nymphs, pests
- 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-day-old) 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.