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Entomofauna associated with the crop of okra, Abelmochus esculentus L. Moench according to the phenological stages and evaluation of the damage caused by insect pests (Daloa, Côte d’Ivoire)

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Research Paper 01/10/2019
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Entomofauna associated with the crop of okra, Abelmochus esculentus L. Moench according to the phenological stages and evaluation of the damage caused by insect pests (Daloa, Côte d’Ivoire)

Tano Djè Kévin Christian, N'depo Ossey Robert, Tra Bi Crolaud Sylvain, Kouassi Kouassi Abel, Obodji Adagba
Int. J. Biosci.15( 4), 134-143, October 2019.
Certificate: IJB 2019 [Generate Certificate]
Key: Attack rateInsects pestsOkraPhenological stages

Abstract

The need to control insect pests of okra crops has led to inventory of insects and evaluation of damage caused by insect pests of this plant. This study was conducted an experimental plot of Jean Lorougnon Guédé University of Daloa during the period from November 2018 to February 2019. Insect captures were made using colorful trap, light trap, trap pit and with sweep net. For the damage caused by the insect pests, the plants were controlled. A total, 5164 insects belonging 40 species regrouped in 29 families and 8 orders were collected. Coleoptera with 52.25% were the most abundant at the flowering stage. Podagrica decolorata was represented highest population (1677 individuals), then Bemissia tabaci, Jacobiasca lybica and Dysdercus voelkeri with respectively 690, 679 and 646 individuals. The colorful trap captured 3761 insects or 72.83% of the total collected insects. Defoliators caused the highest damage to stage before flowering and flowering stage with attack rates of 87.41 and 95.33%, respectively. At fruiting stage, the highest attack rate (61.64%) was induced by piercing-sucking.

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