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Journal of Applied Sciences

Year: 2007 | Volume: 7 | Issue: 4 | Page No.: 575-579
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Authors

J.A. Timbilla

B.W. Lawson

K. Yeboah-Gyan

Keywords

Research Article

Field Evaluation of a Novel Pyrrolizidine Alkaloid Attracticide for the Management of Zonocerus variegatus on Cabbage

J.A. Timbilla, B.W. Lawson and K. Yeboah-Gyan
Cabbage, Brassica oleraceae var. capitata is an important vegetable grown and consumed in Ghana. Apart from infestations of the lepidopterous Plutella xylostella and Hellula undalis resulting from continuous cultivation, a new pest Zonocerus variegatus has been reported to causing damage to the crop. The efficacy of a novel pyrrolizidine alkaloid (PA) based novel PA-attracticide developed from treating the roots of the neophyte, Chromolaena odorata which contains PAs with Carbofuran 3G for the management of Z. variegatus was tested using cabbage as a test crop in field caged plots. Field caged plots of cabbage artificially infested with Z. variegatus were treated with and without PA-attracticide in addition to a control treatment of caged cabbage plot with no insect and PA-attracticide. The experimental design was a RCB replicated three times in two ecological zones. The results showed that the establishment, leaf and head damage of cabbage was statistically the same in the PA-treated plots and the control treatment. These treatments, however, performed significantly better than the treatment without PA-attracticide. The results obtained holds promise for mitigating the menace of the grasshopper on cabbage using PA based attracticides.
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