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Va. Bionomics and Control of Insect Pests of Alfalfa, 



with Special Reference to the Alfalfa Weevil, the Meadow 

 Spittlebug, and the Potato Leafhopper . (1) Obtain 

 information on "biology, ecology, and habits of alfalfa 

 weevil; extend studies into realms of probable interest to 

 other southern states, (2) Study seasonal history of 

 meadow spittlebug and potato leafhopper in Virginia and 

 correlate data with those reported from other areas. 

 (3) Investigate chemical, cultural, and biological control. 

 (k) Obtain data on economic losses of these insects. 

 (5) Study life history and control of other forage insects of 

 economic importance. 

 Ent. 86055 (S-25) 



Wyo. Control of Wyoming Range Grasshoppers . To determine 



(l) economic importance of various species of range grass- 

 hoppers, as to relative abundance of species on range, and 

 food habits of species on range and extent of damage to 

 forage plants; (2) long term results and economy of controlling 

 grasshoppers on range }.and, including how long grasshopper 

 numbers remain low after insecticidal treatment, and what the 

 year-to-year fluctuations of grasshopper populations are in 

 untreated areas; and (3) seasonal appearance of different 

 species to provide necessary information for correct timing 

 of spray treatments. 



Ent., Parasitol. 520 Coop. ARS 



Wyo. The Biology and Ecology of Rangeland Grasshoppers in 



Wyoming . (1) Assemble a list of species of grasshoppers 

 present on rangelands. (2-5 determine.) (2) Species 

 responsible for economic losses and extent of damage caused 

 by each. (3) Seasonal history of economically important 

 species, (k) and study factors responsible for distribution 

 of each species, (5) and study factors responsible for 

 fluctuation in population numbers of economic important 

 species, (6) Develop and recommend ways and means for 

 management of rangeland grasshopper species to assure minimum 

 damage to rangeland forage crops and maximum return from 

 controls • 



Ent., Path., Agron. 609 (W-37) 



