European pine shoot moth caterpillars are feeding on the new growth of pine species, 

 especially muhgo, Scotch, and red pine. The overwintering worms fed on and tunneled 

 into the new "candles" in April and early May. This second generation of worms ap- 

 pearing now are feeding on the ends of branches. Sprays containing dimethoate (Cy- 

 gon, De-Fend) applied now will control these worms. To mix, use 2 teaspoons per gal- 

 lon of water. Pruning of infested tips of branches will also reduce the overwintering 

 infestation. 



Oystershell scale eggs will be hatching soon in the central section. The young crawlers 

 set up housekeeping on shrubs like lilac and dogwood. They suck the juices from the 

 plant and if abundant, they can seriously retard growth and even kill the plant. This 

 is the second generation of this scale and the build-up is often heavy. If you have had 

 a history of problems in your yard, spray the shrubs thoroughly with malathion using 

 2 teaspoons of the 50- to 57 -percent liquid concentrate per gallon of water. Target 

 dates for spraying are right now in the southern sections, August 10 in the central 

 section, and August 20 in the northern section. 



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 McG lamer y , 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 Wood is. 



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. 



