HacKberry psyllids , which cause small pin-like "blisters, are present 

 on leaves. A spray of raalathion or diazinon will control psyllids in the galls. 

 Follow label directions for mixing and use precautions while spraying. 



Lilac borers are emerging and laying eggs . Spray the lower stems and 

 larger branches (not the leaves) with DDT. To mix, use 3 tablespoons of 25 per- 

 cent DDT emulsion concentrate per gallon of water. Repeat the treatment in about 

 two weeks. 



Caution to Those Using Insecticides 



Before applying insecticides, reed the labels carefully and follow all 

 precautions. This will not only ins ire personal safety, but will also eliminate 

 residue hazards. 



This weekly report was prepared by H. B. Petty, Steve Moore, Roscoe 

 Ra.tw3p»n. and Clarence E. White, Illinois Natural History Survey and University of 

 Illinois College of Agriculture, in cooperation with the U-'IA Agricultural Research 

 Service, Plant Pest Control Branch, from information gathered by entomologists and 

 cooperators who send in weekly reports from their own localities. 



Sent by: H. B. Petty 



Extension Specialist 

 in Entomology 



HBP:SM:RR:CEW:gmh 



