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alfalfa fields in a triangular area from St. Louis to Quincy to Springfield. Watch 

 second-growth alfalfa, and if these green gnat-like insects are noticeably abundant, 

 apply 1 pound of methoxychlor or 1 pound of malathion per acre. Allow one week 

 between treatment and harvest as hay or pasture. 



Bagworms are hatching in many areas of the state. Small bagworms are 

 readily controlled, but as they grow larger they become increasingly difficult to 

 kill. For a spray, use 2 teaspoons of malathion emulsifiable concentrate, 3 tea- 

 spoons of toxaphene concentrate, or 1 tablespoon of lead arsenate per gallon of 

 water. Do not apply malathion to Cannart juniper. 



Mimosa webworms are present in southern Illinois and are feeding on mimosa 

 and honey locust. Use a spray of 1 tablespoon of lead arsenate per gallon of water. 

 Repeat applications may be necessary during the summer. 



Caution : Before applying insecticides, read the labels carefully and 

 follow all precautions. This not only will insure personal safety, but will also 

 eliminate insecticide residue hazards. 



■ xxxxxxxx - xxx 



This weekly report was prepared by H. B. Petty, Illinois Agricultural 

 Extension Service and Illinois Natural History Survey, in cooperation with the 

 USDA Agricultural Research Service, Plant Pest Control Branch, from information 

 gathered by entomologists and cooperators who send in weekly reports from their 

 own localities. 



