In this study, the effect of methanol extracts of three different genotypes (Narlısaray, Kavacık, Maltepe) of Cannabis sativa L. on Diuraphis noxia Kurdjumov, Myzus persicae (Sulzer) and Aphis fabae (Scopoli) (Hemiptera: Aphididae) were investigated. In the first stage of the study, 10% concentrations of each cannabis extract were applied on the 2nd and 3rd nymphal stages of aphid species by spraying method. After the end of 24 - 48 and 72 hours of the applications, the alive and dead individuals were recorded and mortality rates were determined. In the second stage, the genotype with the highest effect was used in dose-death trials and LD50 and LD90 values at different doses (2.5%, 5%, 7.5% and 10%) were specified. In the census after 72 hours, Narlısaray genotype showed the highest mortality rate with 54.04% on D. noxia. While the effect of Kavacık genotype on M. persicae was found as 23.13%, the highest toxicity record of the same genotype was determined on A. fabae (as 91.76%). According to the dose measurement studies of Kavacık genotype on A. fabae, LD50 and LD90 values were calculated to be 0.33 and 0.110 (mg/individual), respectively. At the results of study, it has been observed that extracts of different genotypes of the industrial cannabis plant are found effective on aphid species and it is thought that they can be used in controlling of these pests.
| Primary Language | English |
|---|---|
| Subjects | Agricultural Engineering, Entomology in Agriculture |
| Journal Section | Research Article |
| Authors | |
| Submission Date | January 24, 2023 |
| Acceptance Date | March 10, 2023 |
| Publication Date | June 29, 2023 |
| Published in Issue | Year 2023 Volume: 7 Issue: 2 |
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