Insecticide resistance in field populations of the legume pod-borer, Maruca vitrata Fabricius (Lepidoptera: Pyralidae), on cowpea, Vigna unguiculata (L.), Walp in Nigeria

Author: Ekesi S.

Source: International Journal of Pest Management, Volume 45, Number 1, 1 January 1999 , pp. 57-59(3)

Publisher: Taylor and Francis Ltd

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Abstract:

The legume pod-borer, Maruca vitrata Fabricius, from two locations (Shika and Samaru) was found to be resistant to cypermethrin, dimethoate, and endosulfan. When compared with a susceptible reference strain, resistance ratios ranged from 17- to 53-fold for cypermethrin, 27- to 92-fold for dimethoate, and 15- to 37-fold for endosulfan. Low level of tolerance to lambda-cyhalothrin (3- 4-fold) was observed in Samaru. Non-chemical approaches or the use of chemical insecticides only when necessary is recommended to prevent or delay the development of resistance to insecticides.

Keywords: MARUCA; VITRATA; RESISTANCE; INSECTICIDES; COWPEA

Language: English

Document Type: Research article

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