Potential of pigeon pea as a trap crop for control of fruit worm infestation and damage to okra

Ratnadass, A and Moussa, O Z and Kadi-Kadi, H A and Kumar, S and Grechi, I and Ryckewaert, P and Salha, H and Akourki, M and Maâzou, A A and Siaka, S A and Salami, I (2014) Potential of pigeon pea as a trap crop for control of fruit worm infestation and damage to okra. Agricultural and Forest Entomology, 16 (04). pp. 426-433. ISSN 1461-9563

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Abstract

1.The potential of perimeter trap cropping, using short and extra-short duration pigeon pea (SD PP and ESD PP), sorghum and cotton, was evaluated in Niger as an agroecological alternative to pesticide application on okra for the management of the tomato fruit worm (TFW) Helicoverpa armigera (Hübner). 2.In 2008, infestation by TFW and damage by fruit worms of unsprayed okra with SD PP borders was intermediate between cypermethrin-sprayed and unsprayed pure okra crops. 3.In 2009, the cypermethrin-sprayed okra was significantly less damaged by fruit worms than in the unsprayed pure okra, as well as in the unsprayed okra crops with SD PP, sorghum and cotton borders. 4.In 2010, the pure okra crop sprayed with cypermethrin was significantly less infested by TFW than the unsprayed pure okra crop and the unsprayed okra crop with SD PP borders. The unsprayed okra crop with ESD PP borders was intermediate between cypermethrin-sprayed and unsprayed pure okra crops. 5.The slightly lower TFW infestation of the unsprayed okra crop with ESD PP borders was a result of increased top-down regulation by predator spiders, whose colonization was significantly higher on the unsprayed okra crop with ESD PP borders than on both (sprayed and unsprayed) pure okra crops.

Item Type:	Article
Divisions:	RP-Grain Legumes
CRP:	CGIAR Research Program on Grain Legumes
Uncontrolled Keywords:	Abelmoschus esculentus; Cajanus cajan; Helicoverpa armigera; Leafhoppers; Niger; Perimeter trap cropping; Spiders; Pigeonpea
Subjects:	Mandate crops > Pigeonpea
Depositing User:	Mr Ramesh K
Date Deposited:	07 Apr 2016 10:33
Last Modified:	07 Apr 2016 10:34
URI:	http://oar.icrisat.org/id/eprint/9422
Official URL:	http://dx.doi.org/10.1111/afe.12072
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	These studies were funded by CIRAD core-budget (ATP Omega3 Project). We are grateful for the technical and administrative support provided by Mahamane Hamza and Habou Kano, Head and Acting Head of INRAN Konni research station, for making the arrangements to enable us to conduct the field experiments.
Links:	Google Scholar

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