shrivel, and test weight may be reduced. Control is possible by planting high-yielding, 

 resistant varieties such as Jaycee and Otee. 



SOYBEAN DISEASES 



Many poorly drained fields are shewing the row-gap symptoms of damping- off . Diseased 

 areas of plants found in these fields are translucent, soft, and watery. Pythium spp 

 and Phytophthora spp fungi are commonly isolated from these plants. Healthy plants 

 that are next to diseased plants compensate for missing plants by producing addi- 

 tional branches and pods. As a result of increased brandling, there is probably 

 little reduction in yield, except when the gaps are longer than a foot. 



Phyllosticta leaf blight is evident now as brownish, V-shaped, blotches in the first 

 true leaves, these will soon fall away, but no permanent damage or loss of yield will 

 result . 



FIELD MEETING ON CORN R00TW0RM CONTROL 



We will be evaluating the performance of various soil insecticides for controlling 

 corn rootworms on July 16 and 17 in Henderson County at the James Darrah farm. We 

 can use your assistance at the "rootworm party." You will also get first-hand re- 

 sults of rootworm- control tests with various soil insecticides for 1973. 



July 16 1:00 p.m. Henderson County. The James Darrah farm. Go three miles 



north of Junction 164 and 94 and three miles east. We will 

 be taking "root ratings" and making "pull tests" on this 

 day. Call Curt Eisenmayer, Henderson County Extension Ad- 

 viser in Stronghurst, for further information. 

 Telephone: (309) 924-4071 



July 17 9:00 a.m. Same location as above. We will be making larval counts. 



Bring a pocket knife for examining roots . 



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 Urb ana- Champaign , and the Illinois Natural 

 History Survey. 



NEEDS: Ellery Knake and Marshal McGlamery , Department of Agronomy , and A.J. Turgeon , 

 Department of Horticulture. 



PLANT DISEASES: M.C. Shurtleff and Tim Bowyer, Department of Plant Pathology. 



AG COMMUNICATIONS: Ray Woodis. 



AG ENGINEERING: John C. Siemens. 



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

 Extension advisers, and others, in cooperation with the USDA Animal and Plant Health 

 Inspection Service. 



