On pastures for dairy animals and beef cattle, use 3/k lb. of dibrom or 

 1 to 1 1/2 lb. of Sevin per acre. No interval is required between application and 

 grazing. 



For pastures to be grazed only by beef cattle, use 1 l/2 lb. of toxaphene. 

 If toxaphene is also being applied to the cattle to control flies, allov k-2 days 

 between last grazing on treated pasture and slaughter. Do not graze dairy animals 

 on toxaphene- treated forage or pasture. 



For hay crops, apply "$/k lb. of dibrom, 1 lb. of malathion or 1 to 1 i/2 lb. 

 of Sevin per acre. No interval between application and harvest is required for Sevin. 

 Allow h days when using dibrom and 7 days for malathion. Diazinon, l/2 lb. per acre, 

 can be used on alfalfa, with 7 days between application and harvest. A single treat- 

 ment of 1 oz. of dieldrin per acre may be applied to hay crops, but not after the 

 new growth is over six to eight inches high or within 35 days of harvest. 



For corn or soybeans, apply 1/8 lb. of dieldrin or 1 l/2 lb. of toxaphene 

 per acre. Do not apply toxaphene to corn or soybeans to be used for bay, ensilage or 

 stover for dairy cattle or animals being finished for slaughter. Dieldrin, l/8 lb. 

 per acre, may be applied to corn to within kO days of harvest or ensiling, and to 

 soybeans to within 60 days of harvest. Dieldrin, ±/h lb., may be applied to corn or 

 soybeans to within 60 days of harvest. 



Several questions have been asked about the use of aldrin on soybeans. It 

 may be used for grasshopper control as a single application of l/h lb. per acre to 

 within 3° days of bean harvest, or up to 1/2 lb. to within 60 days of harvest. 



Corn leaf aphid has been reported as abundant in corn and sorghum fields 

 in some areas of southern Illinois. It is difficult to determine need for treatment 

 even though we do know that heavy infestations are a contributing factor to barrerjiess 

 and decrease in ear size in corn, and reduced yields in sorghum. Early control has 

 proven beneficial, but the benefit from applications made after sorghum heads or ears 

 of corn are formed may be questionable. 



If a field, by its appearance, needs treatment, 1 lb. of malathion or 

 1/4 lb. of parathion may be used on com. 



Malathion, parathion or l/k lb. of phosdrin may be used on sorghum. Allow 

 7 days to elapse between application of malathion and harvest, 12 days with parathion 

 and 3 days with phosdrin. 



Parathion or phosdrin should be applied only by experienced applicators prop- 

 erly equipped for their own protection. 



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. 



**##■##*-*■# 



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

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

 tural Research Service, Plant Pest Control Branch, from information gathered by en- 

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



HP?:dl 

 8/3/62 



