Factors stimulating the outbreaks of the cotton leaf worm in Assuit governorate

Abstract: An abnormal increasing in air temperature above the general average during the critical period (January – May) of certain
years (2000-2001), increase the emergence of moths and the immature stages mainly as 'pupae". Mass emergence of moths
would then be stimulated by the prevalence of warmer weather, normally taking place during April, but happened in March.
The sudden emergence of a somewhat large number of adults, particularly at that time when it is still too early in the season,
offers vast possibilities for mating and oviposition unlikely to have occurred if normal or warmer "critical periods" had prevailed.
In the latter case, individuals emerge gradually or sparsely over a fairly long period. Thus, their mating chances become
unlimited, and hence, their subsequent generations would attain abnormal and perhaps higher rates
URL
Publication year 2003
Pages 1420-1424
Availability location National Cotton Counceil of America, معهد بحوث وقاية النباتات - ش نادى الصيد- الدقى -الجيزة
Availability number
Organization Name
City Nashville, TN
serial title Beltwide cotton Conferences
Web Page
Author(s) from ARC
Agris Categories Plant diseases
AGROVOC
TERMS
Cotton. Leaves. Stimuli.
Publication Type Conference/Workshop