If you have Johnsongrass in wheat stubble and plan to plant corn or soybeans in the 

 field next spring , cons ider a dalapon application now for control. Clipping or chop- 

 ping the Johnsongrass a time or two before spraying will help deplete the food reserves 

 in roots and rhizomes; this generally improves control. 



When the Johnsongrass is about a foot high and is actively growing during warm moist 

 weather, spray with 8 pounds of dalapon in 50 to 40 gallons of water per acre. Wait 

 at least a week or two before working the soil, in order to give the Dowpon plenty of 

 time to translocate and act on the roots and rhizomes. Unless the Johnsongrass is 

 making good, active growth when sprayed, results may be disappointing. 



By spraying Johnsongrass this summer, you can control much of the old Johnsongrass 

 without delaying planting next spring. But you should plan to follow up next spring 

 with a preemergence application of Eptam for corn or Tref Ian for soybeans , to control 

 Johnsongrass that may come from seed. See Illinois Circular 827 for more details on 

 Johnsongrass control. 



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: M.D. McGlamery and E.L. Knake , 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. 



