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Occurrence and seasonal abundance of the pink bollworm Pectinophora gossypiella Saund. infesting cotton



Occurrence and seasonal abundance of the pink bollworm Pectinophora gossypiella Saund. infesting cotton



Egyptian Journal of Agricultural Research 69(1): 63-72



The occurrence and seasonal abundance of Pectinophora gossypiella was studied on cotton in Egypt during 1986-88. Flight activity studies with pheromone traps indicated that there were 3 generations with 3 peaks during May-October. The combined effect of prevailing temperature and relative humidity was responsible for 61.88, 25.98 and 38.22% of changes in adult male populations during 1986, 1987 and 1988, resp.

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