Several states and Canada have already instituted quarantines against the states 

 that have soybean cyst nematodes. Seed beans as well as beans for processing are 

 not allowed to enter unless the are certified as having coming from an area free 

 of the nematode, or unless they have been cleaned to remove all soil. 



For further information, contact the Illinois Department of Agriculture, Division 

 of Plant Industry, 999 N. Main street, Glen Ellyn, Illinois 60137. Telephone (312) 

 469-8621. 



WEEDS 



NEW HERBICIDES 



Cobex (dinitramine) has received clearance for use as a preplant- incorporated use 

 herbicide. Cobex is similar to Treflan and controls the same weeds, but the margin 

 of soybean tolerance is closer. The suggested application rate is 2/3 to 1-1/3 

 quarts per acre of Cobex 2EC. Minimize soybean injury by keeping the rate low and 

 incorporating lightly. 



Surflan oryzalin has received an experimental permit for preemergence use on soy- 

 beans on soils with less than 3-percent organic matter. Suggested application 

 rates when Surflan is used alone are 1 to 2-1/3 pounds of Surflan 75W per acre. 

 The material controls the same weeds as Treflan, but the need for rain is greater. 

 If half an inch of rain does not fall within 7 days after application, the area 

 should be worked over with a rotary hoe to control emerging weeds and to incorpor- 

 ate the herbicide. The experimental permit also allows tank-mixing Surflan with 

 Amiben, Lorox, or dinoseb. 



Sencor SOW metribuzin has received clearance for preemergence use on soybeans. 

 The recommended application rates are 3/4 to 2 pounds of Sencor 50W per acre, 

 depending on soil texture and organic matter. When used at optimum rates to 

 prevent soybean injury, Sencor controls broadleaf weeds better than grass weeds. 

 Tank-mixes with grass herbicides may be cleared in the future to improve tolerance 

 and provide broader- spectrum weed control. 



Bromex chlorbromuron , Soyex fluorodifen, and Norex chloroxuron, are NORAM trade 

 names for products acquired under the CIBA-Geigy merger. CIBA-Geigy will continue 

 to market them under the previous trade names of Maloran, Preforan, and Tenoran, 

 respectively. 



Furloe chlorpropham is the new trade name for Chloro IPC. Furloe 124 is a mixture 

 of chlorpropham and an extender, which decreases the chlorpropham breakdown rate. 



Eradicane EPTC plus R-25788 is a mixture of Eptam plus a "safening agent" that al- 

 lows Eptam to be used more safely in corn to control Johnsongrass seedlings, wild 

 cane and nuts edge. 



Protect naphthalic anhydride is a seed treatment for corn that decreases chances 

 of injury from Eptam. A two-ounce package will treat 1/2-bushel of seed corn. 



NEW TANK-MIX COMBINATIONS 



Bromex or Maloran can be tank-mixed with Lasso for preemergence weed control in 

 soybeans. Bromex is similar to Lorox, but is less active (on a pound- for-pound 



