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Biological, cultural and selective methods for control of cotton pests in Egypt

Published online by Cambridge University Press:  19 September 2011

D. G. Campion  and
M. M. Hosny
D. G. Campion
Affiliation:
Tropical Development and Research Institute, College House, Wrights Lane, London W8 5SJ
M. M. Hosny
Affiliation:
Institute of Environmental Studies, Ain Shams University, Cairo, Egypt
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Abstract

The most important cotton pests in Egypt are the Egyptian cotton leafworm, Spodoptera littoralis, and the pink bollworm, Pectinophora gossypiella, together with localized infestations of spiny bollworm, Earias insulana.

Control of S. littoralis is achieved by the hand collection of egg-masses every 3 days during the early part of the cotton season by teams of children. Alternative control techniques currently being investigated include the use of microbial pesticides and insect growth regulators.

Large scale commercial applications of slow-release pheromone formulations are used to control P. gossypiella by the mating disruption technique as an alternative to four or five sprays of conventional pesticides. Similar pheromone formulations are being developed for control of E. insulana, which occurs towards the end of the cotton season.

As a result of using such a combination of selective control methods, beneficial insect populations have remained at high levels throughout the season and acceptable levels of infestation have been achieved associated with relatively few applications of conventional pesticides.

Résumé

Les ravageurs les plus importants sur le coton en Egypte sont Spodoptera littoralis et le ver rose Pectinophora gossypiella et en plus des infestations localisées de la chenille de la capsule Earias insulana.

On obtient la lutte Spodoptera par la collection à main des oeufs pondus en masses chaque trois jours pendant la première partie de la saison par des groupes d'enfants. On a utilisé aussu les pesticides microbiologiques et des substances hormonales.

On a appliqué des applications a grande échelle des phéromones pour la lutte contre Pectinophora au lieu de quatre ou cinq applications des pesticides conventionnel. Du fait de sa très grande specifité il respecte la faune associée. Il pourra donc être utilisé dans une programme de lutte intégrée.

Keywords

Controlcotton pestsEgyptSpodoptera littoralisPectinophora gossypiellaEarias insulana
Type
Symposium IX: Biological and Cultural Techniques in Tropical Crop Pest and Vector Management
Information
International Journal of Tropical Insect Science , Volume 8 , Issue 4-5-6: Recent Advances in Research on Tropical Entomology , December 1987 , pp. 803 - 805
Copyright
Copyright © ICIPE 1987

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References

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