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Wyo. Evaluation of Insect Predators in Alfalfa , (l) Survey 



predaceous insects and their possible prey and follow 

 populations through growing season. To learn (2-k) food 

 preference of predators under normal and under starved 

 conditions; numbers of prey eaten "by predators; reactions of 

 predators to variations in populations of prey and of other 

 predators, 



Ent. 600 (W-il-3) 



Wyo, Control of Clover Seed Chalcid , (l) Learn effectiveness 



of DDT, Toxaphene, and other insecticides for clover seed 

 chalcid control when applied at various intervals, 

 Ent. 623 



V, Insects of Miscellaneous Forage Crops 



Calif, Biology and Ecology of Rangeland Grasshoppers . 

 (l) Make an intensive ecological study of a limited 

 rangeland area inhabited by several of important 

 rangeland grasshoppers, (2) On basis of study, analyze 

 and evaluate roles of various ecological factors in 

 population dynamics of rangeland grasshoppers in area, 

 (3) Use information in helping better understand 

 population dynamics of range grasshoppers, to predict 

 grasshopper damage to rangelands, and to develop more 

 effective and intelligent control measures, 

 Ent. 1720 (W-37) Coop. ARS 



Ga. The Evaluation of Insect Damage to Forage Crops and 



the Development of Control Methods . To study problems 

 relating to insects of forage crops, used for pasture, hay, 

 silage, soil conservation and improvement, and seed 

 production of such crops by: (l) determining important 

 insect pests and measuring amount of damage; (2) studying 

 life cycles, habits, seasonal occurrence, and distribution; 

 (3) studying relationship of such factors as biological 

 control, use of insecticides, and cropping practices, to 

 insect abundance or cause of outbreaks; and {k) developing 

 efficient control measures when justified. 



Ent., Agron., Anim. Husb. 66 (S-25) Coop. ARS 



