Efficacy of some botanicals and synthetic chemical insecticides against onion thrips, Thrips tabaci (l.) (Thysanoptera: Thripidae) in West Shoa Zone, Oromia Regional State, Ethiopia

Tadele Shiberu

Efficacy of some botanicals and synthetic chemical insecticides against onion thrips, Thrips tabaci (l.) (Thysanoptera: Thripidae) in West Shoa Zone, Oromia Regional State, Ethiopia

Authors
Tadele Shiberu

Abstract
Onion (Allium cepa L.) is one of the most popular vegetables in the world. It contributes substantially to the national economy apart from overcoming local demand. Thrips tabaci, a serious pest of onion in Ethiopia. The results showed that significant results were observed among the treatments. Sivanto energy 85% E.C gave 100% efficacy in both locations followed by Vayego S.C 200 (98.67%), Promax 44% E.C (96.88%), Prostar 72% E.C (94.67%), and Karate 5% E.C (94.28). Regarding botanicals Adenium sp. (leaf) (87.13%) followed by Nicotiana tabacum (cake) (85.33%), Acokanthera schimperi (bark) (67.13), and Eucalyptus globules (leaf) (57.27). The bulb yield in the treatment of synthetic insecticides gave a better quality of yield in both study areas as compared with botanicals and control.

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