-2- 



still small, apply a spray made with 2 teaspoons of the 57$ malathlon concentrate, 

 3 teaspoons of 60$ toxaphene, or 1 tablespoon of lead arsenate per gallon of water. 

 A second application two weeks later may he needed. 



Elm leaf "beetle : In some areas elm leaves are "being skeletonized by small, 

 ugly, yellow to black, spiny larvae. This pest is particularly severe on Chinese 

 elms. To control them, use h to 6 pounds of lead arsenate, 2 pounds of 50 percent 

 wettable DDT powder or 2 quarts of 25 percent DDT emulsifiable concentrate per 100 

 gallons of water as a spray. 



Caution : Before applying insecticides, read labels carefully and follow 

 all precautions. This not only will insure personal safety, but will also eliminate 

 insecticide residue hazards. 



NOT FOR PUBLICATION - Special note to farm advisers and assistant farm 

 advisers: k-E members will soon begin making their summer project plans. Members 

 enrolled in the entomology project can obtain a free packet of 50 insect pins by 

 writing to Stevenson Moore, 280 Natural Resources Building, Urbana, Illinois. Be 

 sure to obtain a supply of the new k-E Entomology Record Book (BP-23), which also 

 contains cut-out labels for collections. In addition, insect mounting boxes can be 

 purchased by members. Refer to the recent mimeograph on this subject for address 

 and price. 



**#**■*** 



This weekly report was prepared by H. B. Petty, Illinois Agricultural Ex- 

 tension Service and Illinois Natural History Survey, in cooperation with the USDA 

 Agricultural Service, Plant Pest Control Branch, from information gathered by ento- 

 mologists and cooperators who send in weekly reports from their own localities. 



HBP:mfb 

 6/3/60 



