Averade 



annual loss 



EGG 



LIFE STAGES OF INSECT 

 LARVA PUPA ADULT 



Damage to 



cotton crop - ya*«««-"> 



$118,000,000 '^ *"^ 



Methods of "1 

 checking 



Early-ripening 



varieties of plants 



to beat life cycle 



of weevil 



Bum stalks 



COTTON BOLL WEEVIL 



-rrr 



Damage to 

 com crop - 



$17,000,000 





;-^^ 



If! 



Destruction of 



infested stalks 



below ground 



Late fall plowing 



of stubble 



Ensilage for 



stalks 



EUROPEAN CORN BORER 



Damage to 



potato crop - 



$16,500,000 



Poison sprays 

 and powders 



(Effective against 

 both larvae 

 and adults) 



COLORADO POTATO BEETLE 



Damage to 

 grain crops - 



$13,000,000 



Planting alter 

 fly-free period 



Burning stubble 



Crop rotation 



HESSLAN FLY 



Damage to 

 cotton crop - 



$3,000,000 





1<. 



Poison sprays 

 and powders 



(Contact sprays 

 most effective) 



COTTON APHID 



Damage to 



orchards, 



truck crops, 



trees, etc. 



$2,700,000 



Poison sprays 

 and powders 



Capture in traps 



(effective for 



adults only) 



JAPANESE BEETLE 



Damage to 

 bean crops - 



$1,275,000 



Poison sprays 

 and powders 



(Effective against 

 both larvae 

 and adults) 



MEXICAN BEAN BEETLE 



OBSTACLES TO HUMAN WELFARE 



