Toxicity of crude neem leaf extract against housefly Musa domestica L. adults as compared with DDVP, Dichlorvos

Ham neem yaprağı özütünün karasineğe (Musca domestica L.) karşı toksisitesi DDVP'nin (Dichlorvos) toksisitesiyle karşılaştırılmıştır. Neem yaprağı özütü 5; 10; 20; 40; 80µg/karasinek dozlarında, DDVP ise 0.1, 0.2, 0.4, 0.8, 1.6 µg/karasinek dozlarında uygulanmıştır. Probit analizi yöntemiyle hesaplanan öldürücü doz değerleri neem özütü için LD50= 8.4 µg/karasinek, LD90= 169.8 µg/karasinek; DDVP için LD50= 0.44, LD90= 3.58 µg/karasinek olarak tespit edilmiştir. Toxicity of neem extract in comparison with DDVP (Dichlorvos) was determined against the housefly ( Musca domestica L). Neem leaf extract was applied at 5, 10, 20, 40 and 80 microgram/fly and DDVP was treated in 0.1, 0.2, 0.4, 0.8 and 1.6 microgram/fly doses. Lethal dose values were calculated with probit analysis and $LD_ {50}$ and $LD_ {90}$ values were found to be 8.4 and 169.8 ug/fly of neem extract respectively, whereas, values of 0.44 and 3.58 ug/fly of DDVP were found for $LD_ {50}$ and $LD_ {90}$ against house flies.