If you used Ramrod on corn, any Ramrod remaining in the soil should not injure 

 soybeans. But there is no tolerance set for Ramrod in soybeans harvested for 

 food, feed, or oil. Londax contains Ramrod and the same limitations hold true. 



Lorox is cleared for both corn and soybeans, but few people use Lorox alone on 

 corn. In fact, some use Lasso in combination with Lorox for weed control on 

 corn, partly because this combination will cause no problem if replanting to 

 soybeans is necessary. 



Do not plant sorghum where Sutan or Lasso was used on corn. Sutan or Lasso re- 

 maining in the soil could injure sorghum and no legal tolerances have been set 

 for Sutan aor Lasso in sorghum at harvest. 



Atrazine alone is not recommended preplant or preemergence for sorghum because 

 of some risk of sorghum injury. However, atrazine can be used postemergence for 

 weed control in sorghum and a tolerance for atrazine in both grain and forage 

 sorghum has been established. Atrazine in combination with Ramrod or Herban is 

 also cleared for preemergence application on grain sorghum. 



HERBICIDES FOR DOUBLE CROPPING 



Double cropping looks like a good bet for soybeans --or possibly sorghum-- immediate ly 

 following early wheat harvest. If you have a no-till planter or access to one, an 

 extra crop can mean added income with little extra investment. Double cropping 

 may not pay every year- -especially if the season is dry, but planting directly in 

 wheat stubble has some advantages. 



Lorox is the backbone for weed control in a double-crop system. But for best con- 

 trol of weeds in soybeans following wheat, plant and spray immediately after wheat 

 harvest while weeds are still small. 



If the weeds are not more than 4 to 5 inches tall, Lorox plus surfactant WK and 

 favorable conditions may be all you will need. The trick is to apply enough Lorox 

 to kill weeds that have emerged but to avoid rates too high that can injure soy- 

 beans before they emerge. Check rates that have been tried in your area- -but 

 1-1/2 or 2 pounds of Lorox 50W broadcast may be adequate. 



If it looks like grasses will be a serious problem, consider Lasso plus Lorox. 

 One to 2 pounds of Lorox 50W plus 1 to 2 quarts of Lasso may be adequate. 



If weeds are too large for adequate postemergence control with Lorox, consider 

 using 1 to 2 pints of Paraquat in addition to the Lorox or Lorox plus Lasso. 

 Amiben and Preforan are other possibilities for preemergence. 



For postemergence weed control, use plenty of water for good coverage with at 

 least 30 gallons --and preferably 40 to 50 gallons- -of spray per acre. 



IT'S TOO LATE FOR ATRAZINE AND OIL 



It's too late to apply atrazine and oil this year unless the field will be planted 

 to corn or sorghum next year. Late applications, especially if the summer is dry, 

 increase the chances of residue that can injure other crops next year. 



GENERAL OBSERVATIONS 



Some areas were a little too dry for optimum herbicide performance this year. But 

 in many areas there was plenty of time for good seedbed preparation, a lot of 

 rotary hoeing, and good cultivation. 



