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Corn rootworms . If you want to estimate the prospects of rootworm problems next year 

 check the number of adult beetles and the rootworm damage during the next week or two 

 If you find many beetles (four or more per plant), then there may be enough rootworms 

 in the field to cause economic losses in 1972 if the field is planted again in corn. 

 Western corn rootworms were found for the first time in Morgan and Macon Counties thi 

 week. 



SPECIAL NOTICE 



A new regulation will be in effect after September 7, 1971. This regulation has been 

 added to the Illinois rules governing Grade A pasteurized milk and milk products: 



The application and storage of the chlorinated hydrocarbon 

 insecticides, aldrin, chlordane, dieldrin, endrin, lindane, 

 or heptachlor, are prohibited on dairy farms except for the 

 farm residence. 



This information ;vas received from Franklin D. Yoder, M.D., Director of Public Health 



HOMEOWNER INSECTS 



I 



Borers . Evidence of infesting shade trees and shrubs is common in many areas at this 1 

 time of the year. Piles of sawdust or frass at the base of trees or around entry hole 

 in the trunk are common symptoms of the presence of borers. 



In general , most borers hatch from eggs in late May or June and tunnel into the wood ' 

 or under the bark. These borers continue to feed during the summer and fall. During; 

 late spring, the borers change to either an adult beetle or moth and emerge from the) 

 tree or shrub to lay eggs to complete the annual life cycle. 



Chemical control is simply applying a chemical on the bark to kill newly hatching bore; 

 Other control methods include digging-out the borers with a knife or wire. One specid 

 that emerges as an adult in the late summer is the locust borer. If this insect is i 

 festing locust, then apply dimethoate (Cygon or De-Fend) to the trunk in late August m 

 again in mid- September. 



Sod webworm moths . They continue to be numerous around many homes. Some damaged area 

 are beginning to appear in lawns. These second -generation moths hide in the shrubbery 

 during the day, then fly over the lawn depositing eggs while in flight. If damage is 

 beginning to appear, an application of carbaryl (Sevin) , diazinon, or trichlorfon 

 (Dylox) --spray or granules- -will effectively control the worms for a week or two. An 

 additional treatment may be needed if egg-laying continues into late August. 



Aphids . This pest continues to suck plant juices from roses and chrysanthemums, plus 

 many shrubs and trees. These soft-bodied plant lice can easily be controlled with a 

 spray application containing either malathion or diazinon. 



WEEDS 



SEED GRASSES IN FENCEROWS 



Fencerow weed control in 1972 can be much easier if you seed smooth brome or some othei 

 desirable grass now. The grass competes well with weeds and also provides good soil 

 and wildlife cover. 



