Diagram. 



Show ma the average number of green bolls and the ,:,,erage number of 

 bolls atbacHed bg Gelechia pen thousand cotton plants, and the percentage 

 of green bolls attacked bg Gelechia In Lower and Middle Egupb. 



00 ^ 





!00 



90 



80 



70 



60 



50 



40 



30 



. 20 



10 



Jul 



^ 



August September Octoben November. 



Green bolls per 7000 plants. 



Attacked green bolls per 7000 plants 



..^.+ Percentage of bolls attacked. 



Reproduced from' Bulletin Nu. 18, Technical .-.u.l Scientiiic Service, Ministry of Agriculture. E-vnt. 



