The results indicate that O. longinoda can be used to control some sucking bugs as effectively as some insecticides.

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Imidacloprid was less effective in reducing ant populations than a mixture of pirimiphos‐methyl and bifenthrin, while the mixture also greatly reduced the number of spiders. Imidacloprid caused some reduction in spider numbers for a week after spraying but then numbers rose substantially. Copyright © 2005 John Wiley & Sons, Ltd

From August 1988 to January 1997, natural enemies were reared from 335 colonies of Planococcus citri Risso (Homoptera: Pseudococcidae) sampled for 87 months from 225 randomly selected cocoa farms in the six cocoa-growing regions in Ghana. A total of 20,408 P. citri individuals was recorded, comprising adult females, third instar nymphs and mummified individuals harbouring parasitoids. Observed predators were larvae of Coccodiplosis coffeae Barnes (Diptera: Cecidomyiidae), nymphs and adults of Hyperaspis egregia Mader and Scymnus (Pullus)