field. Observe each leaf closely. If the average is one or more egg masses per 

 plant, treatment nay be profitable. Use 1 l/2 pounds of carbaryl (Sevin) or 1 pound 

 of diazinon per acre as granules, applied by air or ground equipment. They will be 

 equally effective. Sprays applied by ground machines will be as effective as granules 

 against corn borer, but sprays applied by airplane will be less effective. 



Two-spotted mites are still abundant and damaging soybeans. This pest 

 survives best in dry weather, and since it feeds on sap from the plant, the damage 

 has been most severe in the drought areas. In fact, feeding has damaged some fields 

 severely, even killing beans in some spots. The mites are still plentiful and are 

 laying eggs. Thus we expect feeding and damage to continue unless we get timely 

 rains until harvest. 



If a field is severely affected, the mites can be controlled by applying 

 3/4 pound of carbophenothion (Trithion) per acre. This insecticide is highly toxic 

 and should be applied only by experienced operators . Allow seven days to elapse 

 between treatment and harvest. 



Homeowner's Insect Problems 



During dry years crickets and leafhoppers are abundant in wastelands and 

 pastures. As the urge to migrate strikes them, they leave and are attracted to 

 houselights in great numbers. They are so abundant that even the best control does 

 not prevent all of them from entering the house. Use chlordane as a spray outdoors . 

 Use chlordane emulsifiable concentrate and dilute it to 1 to 2 percent with water. 

 Spray the foundation of the house to the point of runoff, and spray a two- to four- 

 inch area of soil along the foundation. Spray behind all steps and in cracks and 

 crevices. In addition, apply a light spray two or three times each week to the side 

 of the house around doorways and windows. This treatment will kill the crickets and 

 leafhoppers as well as ants, oriental roaches, spiders and other outdoor pests that 

 migrate into the house. 



Millipedes will soon be a nuisance. These long, wirelike, brown insects, 

 which run rapidly on their many legs, migrate from nearby pastures and wastelands. 

 They present the greatest problem in new housing developments. When these pests 

 begin to appear, use carbaryl as a spray on the foundation of the house and into the 

 yard for three or four feet. 



Caution to Those Using Insecticides 



Before applying insecticides, read the labels carefully and follow all 

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

 residue hazards. 



Hot For Publication 



One western corn rootworm beetle was collected at El Paso. We are continu- 

 ing our survey for this pest. 



■* * # # #■ 



This weekly report was prepared by H. B. Petty, Steve Moore, Roscoe Randell, 

 Don Kuhlman and Clarence E. White, Illinois Natural History Survey and University of 

 Illinois College of Agriculture, 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. 



Sent by: H. B. Petty 



Extension Specialist 

 in Entomology 



HBP:gmg 



