-6- 



Eradicane is a formulation of Eptam+, a safening agent that holds promise for re- 

 vitalizing control programs for johnsongrass seedlings, wild cane, and nutsedge. 



Atrazine will be available in a wider variety of containers this year. One major 

 distributor plans to market atrazine from a different manufacturer under the name 

 Atrafine. 



Lasso granules will be available as a 15-percent, rather than a 10-percent, formula- 

 tion in 1974. The new formulation will be known as Lasso II. The new formulation 

 will make handling more efficient and will tend to encourage use of a higher rate 

 that should improve performance even more. 



Bladex will probably be cleared for use in a wider variety of combinations during 

 1974. Bladex is already cleared for use with Lasso and with paraquat and clear- 

 ance has been requested for tank-mixing Bladex with Sutan for preplant incorpora- 

 tion as well as for sequential treatment with Bladex applied to the surface follow- 

 ing Sutan preplant. 



Banvel-plus-Lasso will likely be more widely promoted during 1974. At the approved 

 rate of one-half pound of active ingredient per acre, corn tolerance to Banvel-plus- 

 Lasso has generally been adequate on some of our major Illinois soils. But corn in- 

 jury is possible when the combination is used at higher rates or under certain soil 

 and weather conditions. The Banvel in the combination improves control of broadleaf 

 weeds, including smartweed and velvetleaf. 



Because both formulations are liquids, the Banvel-Lasso combination offers conven- 

 ience and flexibility for cropping the following year. Replanting corn fields that 

 liave been treated with Banvel-plus-Lasso, however, to soybeans during the same sea- 

 son is not feasible. 



NEW SOYBEAN HERBICIDES FOR 1974 



For soybeans, several new materials will be available in 1974. Several dinitroani- 

 line herbicides that are chemically similar to Treflan will be available. The rates 

 needed and the degree of crop tolerance varies, but with appropriate adjustments, 

 the new materials perform about the same as Treflan. Tolban, Cobex, and perhaps 

 Amex will likely be available for use during 1974. 



Sencor will control most broadleaf weeds commonly found in Illinois soybean fields, 

 with the major exception of annual morningglory. Sencor will also control grass 

 weeds, if a high enough rate is used. 



Soybean tolerance to Sencor is limited, but you can reduce the risk of crop injury 

 by using another herbicide for grass control and lowering the rate of Sencor. Sen- 

 cor is not well adapted to fields with much variation in organic matter, and rates 

 need to be selected carefully for the soil and applied extremely accurately. 



Because incorporation of Sencor has increased the degree of soybean injury and has 

 sometimes reduced weed control, surface applications are generally preferred. Sur- 

 face applications can be made following preplant application of a herbicide, such 

 as Treflan, or in combination with another herbicide, such as Lasso. Dupont has 

 recently announced that it plans to market Lexone, a herbicide that has the same 

 active ingredient as Sencor. 



Basagran for postemergence application is another new herbicide of major interest 

 for improved broadleaf weed control. Basagran continues to perform well in trials, 



