-5- 

 These are other disease problems that may affect plant seedlings : 



1. Scab. The plants will be stunted and yellow, some dying. The roots will be rotted 

 and reddish -brown. 



2. Spot blotch . This is a dark -brown rot, at or beneath the soil line. The leaves 

 will be erect and dark green, with dark brown spots. 



3. Speckled leaf blotch . The leaves will have circular to oval, light-green spots with 

 black specks (Septoria fruiting bodies). Later in the spring, the tillers die and 

 are covered with black fruiting bodies. 



SAFETY REMINDERS 



Preventing chemicals from getting into wells is much cheaper and easier than taking care 

 of the problem afterward. The most -frequent causes are flushing or overflowing sprayers 

 near wells or hose -siphoning while sprayers are being filled. If a loss of pressure occurs, 

 it would be possible for chemicals to get from a spray tank into a municipal water supply 

 by siphoning. 



Here are some tips on prevention: 



1. Do not leave the sprayer unattended while filling the tanks. 



2. Do not flush tanks where the chemical (s) will drain into wells. 



3. Do not place the hose in the tank. A bracket to hold the hose and the tank will pre- 

 vent siphoning. 



If the material gets into a well, this problem must be dealt with immediately. First, de- 

 termine the use of the well water. Is it used for human or animal consumption or only to 

 irrigate a garden? Second, determine the chemical (s) involved and their toxicity. Third, 

 start to pump the well as soon as possible, disposing of the water in a suitable manner. 

 Some materials, such as Treflan, Lasso, or 2,4-D ester, will be visible in the water--even 

 in dilute amounts. 



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 Cooley , College of 

 Agriculture, University of Illinois at Urbana-Champaign , and the Illinois Natural History 

 Survey . 



WEEDS: Ellery Knake and Marshal McGlamery , Department of Agronomy. 



PLANT DISEASES: M.C. Shurtleff and Ed Burns, Department of Plant Pathology. 



AG COMMUNICATIONS: Ray Woodis . 



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

 sion advisers, and others, in cooperation with the USDA Agricultural Research Service, 

 Plant Pest Control Branch. 



