-3- 



Crickets around the house foundation attempting to enter the home can be controlled 

 by a foundation spray of chlordane. Buy chlordane as a liquid emulsion concentrate 

 and dilute it with water to the proper strength (1 pint of 45-percent chlordane 

 liquid concentrate in 3 gallons of water gives a 2-percent solution). Spray the 

 foundation from the sill to the soil until the spray runs off. Also spray 2 to 

 3 inches of soil next to the foundation wall. Spray cracks or expansion joints 

 along porches and around steps and also along the edges of sidewalks and drive- 

 ways. In houses with crawl spaces, treat the inside of the foundation wall as 

 well as the outside, and also spray support pillars. The average house requires 

 about 3 gallons of finished spray. Do not spray near wells or cisterns. Do not 

 spray shrubbery or flowers, because the oil may burn the foliage. This treatment 

 will also be effective against ants and centipedes trying to invade homes in 

 search of food or shelter. 



Flies on pastured cattle are increasing in number and are causing noticeable dis- 

 comfort to the animals. In northern Illinois fly counts averaged 5 to 10 face 

 flies plus 50 to 100 horn flies per animal. 



For pastured dairy cattle, apply 1 to 2 ounces of an oil-base spray of 2 percent 

 Ciodrin per animal every 3 to 4 days for best results. A 1-percent dichlorvos 

 (DDVP) or 0.1-percent pyrethrin oil-base spray applied at the rate of 1 or 2 

 ounces per animal every day or two can also be used. But these are less effective 

 than Ciodrin, particularly against the face fly. Water-base sprays of the same 

 material may be used, but control is less effective. Pay particular attention 

 to the animal's legs and undersides when spraying. 



For pastured beef cattle, apply a water-base spray or 0.5 percent toxaphene, 

 using 1 to 2 quarts per animal every 3 weeks. Allow 28 days to elapse between 

 treatment and slaughter. Back rubbers, compared with spraying, are only partially 

 effective against horn flies and stable flies. A 2 -percent Ciodrin oil -base 

 spray- -applied at the rate of 1 to 2 ounces per animal every 3 to 4 days from an 

 automatic sprayer--is an excellent way to control flies on pastured beef cattle, 

 if the situation permits its use. 



CAUTION: BEFORE APPLYING INSECTICIDES, READ THE LABELS CAREFULLY AND FOLLOW ALL 

 PRECAUTIONS. THIS WILL NOT ONLY INSURE PERSONAL SAFETY, RUT WILL ALSO 

 PREVENT RESIDUE HAZARDS. 



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

 Don Kuhlman, 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. 



