-2- 



Northern corn rootworm adults are small, active, light yellow to green 

 beetles that feed on corn silks in fields where corn has been grown successively 

 for three or more years. These beetles are now emerging, and their feeding can 

 affect pollination if there is an average of several beetles per silk. Most in- 

 secticides will kill these beetles; carbaryl (Sevin) is commonly recommended. 



In the larval stage, these rootworms eat the roots of corn, increasing 

 the possibility of lodging. However, most of the lodging this past week was 

 caused by wind and not by rootworm feeding. 



Sod web worm moths become more abundant each week. These moths are seek- 

 ing luxuriant lawns on which to deposit eggs. Worms hatch from the eggs and feed. 

 As grass growth slows up in early August , the damage to these lawns will become 

 apparent . 



If your lawn is now luxuriant and moths are extremely abundant, be pre- 

 pared to apply two pounds of actual carbaryl ( Sevin) or one pound of actual diazi- 

 non per 10,000 square feet of lawn in late July or early August. Either one may 

 be used as a spray or granules. When spraying, use enough water to get good 

 coverage. Mow and water the lawn before applying the treatment. Do not water 

 again for three or four days after application. Do not apply any insecticide un- 

 less you have seen lots of webworm moths in your yard at dusk. 



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. 



****** 



Special Note to Farm Advisers (NOT FOR PUBLICATION) 



The poisonous brown recluse spider ( Loxosceles reclusa) has now been 

 found in the following Illinois counties: Saline, Jackson, Massac, Pulaski, Mon- 

 roe, Wayne, Moultrie, and Champaign. 



If you find a spider that resembles this species, put the specimen in 

 alcohol and send it to us for positive identification. 



****** 



Prepared by H. B. Petty, Steve Moore, Roscoe Randell and Clarence E. White 

 Extension Entomologists, University of Illinois College of Agriculture 

 and Illinois Natural History Survey 



****** 



H. B. Petty ""^ 



Extension Specialist 

 in Entomology 



