oa Journal of the Entomological Society of Southern Africa - Screening of new insecticides against the Citrus Thrips. Scirtothrips aurantii Faure, on Pride of Barbados, Caesalpinia pulcherrima (L). Sw.

Volume 32, Issue 1
  • ISSN : 0013-8789



The shrub Pride of Barbados, Caesalpinia pulcherrima (L). Sw., which is used in the Eastern Transvaal for hedges was found to be heavily infested with the citrus thrips, Scirtothrips aurantii Faure. A method is descriptionbed for using these populations to screen insecticide sprays. At a concentration of 0.075% active ingredient the insecticides Carbicron 50% EC [3-(dimethoxyphosphinyloxy)-N,N-dimethylciscrotonamide], Delnav 50% EC [2,3-p-dioxanedithiol S,S-bis (O,O-diethylphosphoro dithioate)], and Banol 75% WP [6-Chloro-3,4-xylyl methylcarbamate] yielded results which were equal to or better than those obtained with parathion 25% WP [Diethylparanitrophenyl thiophosphate] which is used commercially to protect citrus crops from thrips attack.

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