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either the bag and pole method or by geared machinery is satisfactory. 

 The work should be done Avhen the plants are moist with dew or after 

 , a light shower. Two applications, Avhen not followed immediately 

 by rains, should be sufficient; the first should be made when the 

 eggs begin to hatch in numbers, usually between July 25 and August 

 5; this may be followed by a second in about one Aveek. If rains 

 follow the applications, these should be repeated immediately. 



Destruction of the early generations of bollworm larva? in corn 

 seems impracticable, except in certain cases of isolated areas and 

 where the acreage of corn is small as compared with that of cotton. 



Owing to the great value of wasps in destroying bollworm larvae 

 throughout the season a protest should be made agiinst the common 

 practice of destroying their nests. Where domestic fowls are reared 

 these should be encouraged to feed as much as possible in adioininff 

 cotton. ^ ^ 



For practical as well as other reasons wild birds should be protected 

 and encouraged in their visits to cotton fields. 



290 



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JCAJ 



