Dalip, Kathy M.; Robinson, Dwight E.; Mansingh, Ajai
Author Affiliation, Ana.
Department of Life Sciences
Management of cabbage pests with companion crops and botanical formulations
Utilization of natural products in Developing Countries: Trends and needs edited by Ajai Mansingh, Ajai, Donald E Young, Donald E. , Trevor H.Yee, Rupija Delgoda, Dwight E. Robinson,Dwight E., Errol Y. Morrison, Henry I.Lowe.
Place of Publication
The Natural Products Institute, University of the West Indies
Date of Publication
Series Editor Role
Series Volume Identification
Series Issue Identification
Abstract also published in Abstracts. International Symposium. Utilization of natural products in Developing Countries: trends and needs p. 34.
Investigations were conducted on the management of the diamondback moth, Plutella xylostella (L.), and the cabbage semi-looper, Trichoplusia ni (Hübner), with (i) a botanical formulation, Ashima I, in combination with acompanion crop, tobacco (Nicotinum tabaci), or an attractant crop, the indian mustard (Brassica juncea) grown around the periphery, and (ii) the botanical formulations, Ashima I and Ashima II. Tobacco alone was effective in repelling the pest up to a radius of 3m, while the trap crop reduced the infestation significantly. the overall mean damage to cabbage leaves was 64% of the control in tobacco plots treated with two spraying of Ashima, while it was only 50% of the controls in plots surrounded by mustard and three sprays of the botanical formulation. Spraying with Ashima I and II four times during the 15-week cropping period had almost completely reducedthe infestation within a week of initial spraying and maintained it it at that low level, until harvest. the mean wt of cabbage heads was 0.39 kg in the control plots and about 30% more in the test plots.....