-2- 



a fungus disease of aphids to develop rapidly, particularly if it is muggy. Wasp 

 parasites of aphids are just appearing in fields. 



No damage is visible yet, "but upon the first indication of wilting, apply 

 1 pound of malathion, l/k pound of parathion or phosdrin, or 1/8 pound of demeton 

 per acre. Allow one week "between treatment and harvest when using malathion, 1 

 day with phosdrin, 15 days with parathion, and 21 days with demeton. Only one 

 application of demeton can he made per cutting. Demeton, parathion, and phosdrin 

 should be applied only by an applicator experienced in handling toxic organic 

 phosphate. 



Greenbug: This pest is abundant in some of the states to the west and 

 south of Illinois. Some winged greenbugs have been observed there. None have been 

 found yet in Illinois, and whether there will be any is questionable. There are 

 numbers of English grain aphids in grain fields at present, but they should not be 

 confused with the true greenbug. 



Caution ; Before applying insecticides, read labels carefully and follow 

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

 insecticide residue hazards. 



NOT FOR PUBLICATION - Special note to farm advisers and assistant farm 

 advisers: *J-H members will soon begin making their summer project plans. Members 

 enrolled in the entomology project can obtain a free packet of 50 insect pins by 

 writing to Steve Moore, 280 Natural Resources Building, Urbana, Illinois. Be sure 

 to obtain a supply of the new U-H Entomology Record Book (BP-23)> which also con- 

 tains cut-out labels for collections. Copies of the Handbook of the Insect World, 

 which will assist members with identification, are also available. 



We will welcome reports of insect abundance from county agricultural ex- 

 tension personnel. Those wishing to have insect report blanks, please write to us 

 and we will send them by return mail. 



********** 



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

 tension Service and Illinois Natural History Survey, in cooperation with the USDA 

 Agricultural Service, Plant Pest Control Branch, from information gathered by ento- 

 mologists and cooperators who send in weekly reports from their own localities. 



HBP:bb 

 4/28/61 



