Effects of different industrial cannabis (Cannabis sativa (Linnaeus 1753) (Cannabaceae)) genotype extracts on Diuraphis noxia Kurdjumov, 1913 Myzus persicae Sulzer, 1776 and Aphis fabae Scopoli, 1763 (Hemiptera: Aphididae)

In this study, the effect of methanol extracts three different genotypes (Narlısaray, Kavacık, Maltepe) Cannabis sativa L. on Diuraphis noxia Kurdjumov, Myzus persicae (Sulzer) and Aphis fabae (Scopoli) (Hemiptera: Aphididae) were investigated. first stage 10% concentrations each cannabis extract applied 2nd 3rd nymphal stages aphid species by spraying method. After end 24 - 48 72 hours applications, alive dead individuals recorded mortality rates determined. second stage, genotype with highest was used in dose-death trials LD50 LD90 values at doses (2.5%, 5%, 7.5% 10%) specified. census after hours, Narlısaray showed rate 54.04% D. noxia. While Kavacık M. found as 23.13%, toxicity record same determined A. (as 91.76%). According to dose measurement studies fabae, calculated be 0.33 0.110 (mg/individual), respectively. At results it has been observed that industrial plant are effective is thought they can controlling these pests.