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HOMEOWNER PROBLEMS 



Co ttony maple scale appears as a sticky, cottony mass on tree branches- -especially 

 those of maple and honey locust. At present, these are the adult scales with eggs 

 inside the cottony area. They are sucking plant sap from the twig. The eggs will 

 be hatching in early July, and the young will crawl out onto the underside of leaves. 

 These crawlers will appear as tiny, yellow specks on the leaves. They will remain 

 on the leaves, sucking plant juices until September. For control, spray in early 

 to mid- July with malathion. Be sure to spray the leaves near twigs covered with 

 the cottony masses thoroughly. 



Mimosa webworms have begun to feed on mimosa and honey locust trees, and to construct 

 web nests on the branches. Spraying with either malathion or carbaryl (Sevin) when 

 the nests first appear will control this insect. A repeat treatment may be needed 

 after two or three weeks. 



WEEDS 



Quite a bit of replanting has been necessary this year. Some areas are still wet, 

 and there are still some fields to plant. What do you plant where atrazine was 

 previously applied for corn and the field must be replanted? 



Planting soybeans would not be in accordance with the label, and the risk of severe 

 injury to soybeans is considerable. Sorghum would probably tolerate the atrazine, 

 but you need a market or some use for the sorghum. Sorghum- sudan may tolerate the 

 latrazine, but most farmers could not use a very large acreage. Although sorghum or 

 sorghum-sudan may tolerate the atrazine that was applied earlier, strict interpre- 

 tation of the label suggests that this practice is not clearly approved for Illinois. 

 If you can use corn silage, that would be one of your best answers. 



A short-season com to be used for grain is also a possibility. Although yields may 

 not be very good and drying at harvest will probably be necessary, this may be better 

 than leaving the land idle. Raising sunflowers or buckwheat is not feasible on land 

 treated with atrazine. 



READ THE LABEL AND FOLLOW ALL PRECAUTIONS 



This weekly report was prepared as follows : 



INSECTS: H.B. Petty, Steve Moore, Roscoe Randell, Don Kuhlman , and Tim Coo ley , 

 College of Agriculture , University of Illinois at Urbana-Champaign , and the Illinois 

 Natural History Survey. 



WEEDS: M.D. McGlamery and E.L. Knake , Department of Agronomy. 



AG COMMUNICATIONS: Del Dahl . 



The information for this report was gathered by these people, staff members, county 

 Extension advisers, and others, in cooperation with the USDA Agricultural Research 

 Service, Plant Pest Control Branch. 



