Silage corn . AAtrex, Ramrod, Ramrod- at razine, Sutan, Sutan-atrazine, Lasso, Lasso- 

 atrazine, Londax, Eptam, and Knoxweed are all cleared. (For Lasso, at least 12 

 weeks must elapse before harvesting or feeding immature corn forage to cattle.) 

 AAtrex is also cleared for popcorn. For sorghum, check the details on the Ramrod 

 and AAtrex labels; for sorghum- sudan, check the AAtrex label. 



2,4,5-T . This should no longer be used around homes, lakes, ponds, or ditchbanks. 

 Consider substituting silvex, which will control many of the same species plus some 

 others. 



Marihuana . It is now about 6 to 12 inches high in some areas, and this is a good 

 time to spray with 2,4-D--"before it grows to pot." 



PASTURE WEED CONTROL 



The most-common herbicide spray for pasture weed control is 2,4-D, unless woody 

 species are present; then, a mixture of 2,4-D and 2,4,5-T (brush-killer) is generall 

 used. Choose the rate of 2,4-D to fit the weed problem. Most annual broadleaved 

 weeds can be controlled with 0.5 pound per acre of 2,4-D (1/2 pint of a 4-pounds- 

 to-the-gallon mixture) . 



Most of the other pasture weeds (biennials and perennials) can be controlled with 

 1 to 2 pounds per acre of 2,4-D. This rate will eliminate most of the legumes in 

 a grass -legume pasture. Do not spray seedling grasses or grasses in the boot stage 

 (if for seed production) . Do not graze dairy animals on treated areas for 7 days 

 after treatment. 



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 M.D. McG lamer y , Department of Agronomy . 



AG COMMUNICATIONS: Del Dahl . 



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

 Extension advisers, and others, in cooperation with the USDA Agricultural Research 

 Service, Plant Pest Control Branch. 



FIELD MEETINGS 



This year, we applied five soil insecticides in different ways to corn planted after 

 sod. You are invited to view these fields during the first two weeks of June at 

 1:30 p.m. on the following dates--insect infestation may or may not be noticeable, 

 but we will dig for insects and count stands at that time: 



June 2 . Pike County- -Barry, Perry Metcalf farm. Contact Extension Adviser Harry 

 Wright in Pittsfield. 



June 5 . Knox County- -Wataga, Robson farm. Extension Adviser Don Teel, Galesburg. 

 Field 1/4 mile west and 1 mile north of junction of Highway 54 and the Wataga- 

 Henderson Road. 



