Title: Efficacy of selected synthetic pyrethroids and commercially formulated botanical insecticides for the control of insect pest of okra (Abelmoschus esculentus)
Authors: Abanum, V.O, Tobih F.O & Emosairue S.N
Volume: 8
Issue: 10
Pages: 395-406
Publication Date: 2024/10/28
Abstract:
The efficacy of selected synthetic pyrethroids and commercially formulated botanical insecticides against okra (Abelmoschus esculentus) insect pests was investigated in Delta State, Nigeria. The experiment was a randomized complete block design (RCBD) with six treatments each of cypermethrin, deltamethrin, lambda-cyhalothrin, neem-based azadirachtin, karanjin oil, and a control were used in the experiment. Data on insect pest counts and okra yield were collected and analyzed for five weeks. The results indicated that synthetic pyrethroids, especially cypermethrin and deltamethrin, provided quick knockdown and residual control against these insect pests, reducing populations of whiteflies, aphids, and leafhoppers significantly. Botanicals, though slower-acting, were also effective in the control of pest populations and thus could be suitable for use in integrated pest management systems. This therefore, concludes that even though synthetic pyrethroids are admittedly superior in the immediate control of pests, botanical insecticides present a safer alternative that is also more sustainable for the long-term management of pests.