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Control of pink boll worm, Pectinophora gossypiella (Saunders) (Lepidop-tera: Gelechiidae), in Egypt by mating disruption using an aerially applied microencapsulated pheromone formulation

Published online by Cambridge University Press:  10 July 2009

B. R. Critchley
Affiliation:
Tropical Development and Research Institute, College House, Wrights Lane, London W8 5SJ, UK.
D. G. Campion
Affiliation:
Tropical Development and Research Institute, College House, Wrights Lane, London W8 5SJ, UK.
L. J. McVeigh
Affiliation:
Tropical Development and Research Institute, College House, Wrights Lane, London W8 5SJ, UK.
P. Hunter-Jones
Affiliation:
Tropical Development and Research Institute, College House, Wrights Lane, London W8 5SJ, UK.
D. R. Hall
Affiliation:
Tropical Development and Research Institute, 56-62 Gray's Inn Road, London WC1X 8LU, UK.
A. R. Cork
Affiliation:
Tropical Development and Research Institute, 56-62 Gray's Inn Road, London WC1X 8LU, UK.
B. F. Nesbitt
Affiliation:
Tropical Development and Research Institute, 56-62 Gray's Inn Road, London WC1X 8LU, UK.
G. J. Marrs
Affiliation:
Imperial Chemical Industries PLC, Plant Protection Division, Jealott's Hill Research Station, Bracknell, Berkshire RG12 6EY, UK.
A. R. Jutsum
Affiliation:
Imperial Chemical Industries PLC, Plant Protection Division, Jealott's Hill Research Station, Bracknell, Berkshire RG12 6EY, UK.
M. M. Hosny
Affiliation:
Plant Protection Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt.
El-Sayed A. Nasr
Affiliation:
Plant Protection Research Institute, Ministry of Agriculture, Cairo, Egypt.

Abstract

A large–scale mating disruption trial for the control of Pectinophora gossypiella (Saund.) was carried out in the Fayoum Province of Egypt during the 1981 cotton season. Two areas, each of 50 ha, were sprayed with a microencapsulated formulation of the sex pheromone (a 1:1 mixture of (Z, Z)- and (Z, E)-1, 11-hexadecadienyl acetate) as the sole means of controlling this pest. Five applications of 10 g a.i./ha were made during the season using fixed-wing aircraft. The pheromone treatments were compared with conventional insecticide spray treatments in two other 50-ha areas of cotton. From comparisons of treatments in terms of various plant damage criteria including the percentage of rosetted flowers, percentage boll infestation, gross yield of seed cotton and lint quality, it was concluded that the pheromone treatment was equal in effect to the insecticide sprays.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1983

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