-4- 



emulsion of chlordane in water. Purchase chlordane as a liquid concentrate. Mix 

 it with water to the proper strength. A half pint (8 ounces or 1 cup) of 45-percent 

 chlordane in three gallons of water gives a 1 -percent emulsion. Spray the founda- 

 tion wall from the soil to the sill area, or along the outer wall, for a distance 

 of about a foot above the soil to the point of runoff. In addition, spray the ex- 

 pansion joints along porches and steps, and along the edges of sidewalks and drive- 

 ways. In homes with a crawl space, spray the inside wall and any supporting pillars. 

 Do not spray directly onto shrubbery or flowers. The oil solvent in the spray may 

 burn the tender foliage of some plants. Plan on repeating the treatment two or three 

 times this summer. 



Three gallons of finished spray should do for the average house. The need for using 

 insecticides inside the home will be greatly reduced by the kind of spraying rec- 

 ommended above, under the house and around its perimeter. 



WEEDS 



DRY WEATHER AND HERBICIDE FAILURE 



The dry weather this spring has caused concern about the possibility of herbicide 

 failure. If you applied a herbicide but weeds appear because the herbicide is not 

 working, use a rotary hoe to control small weeds. 



Do not wait for rain to see whether the herbicide will work. Small weeds are easier 

 to control with a rotary hoe than larger ones. The minimal incorporation of the her- 

 bicide with a rotary hoe will not retard herbicidal action. It may improve it. 



CONTROLLING JOHNSONGRASS 



Johnsongrass is a perennial plant that is difficult to control. Seedlings cause 

 the main problem in most fields, but there is also some "old grass" that sprouts 

 from rhizomes. If you did not control that last summer or fall, there is still 

 time this spring. 



Follow these tips: 



1. Let the Johnsongrass grow about a foot high before tilling. 



2. Spray 5 to 7 pounds of Dowpon in 30 to 40 gallons of water per acre. 



3. Wait 3 to 5 days after spraying, then plow or disk. 



4. Wait 1 to 3 weeks after tillage to plant corn or soybeans. Wait at least 

 2-1/2 weeks before planting sorghum. 



To get the best control of seedling Johnsongrass , use a preemergence or preplant 

 herbicide- -Tref Ian, Planavin or Vernam in soybeans, Eptam or Sutan in corn. There 

 is no herbicide for control of Johnsongrass seedlings in grain sorghum. The same 

 treatments will also control wild cane in corn and soybeans. 



NEW TANK-MIX CLEARANCES 



Federal registration has been given for a tank-mix of Preemerge (dinitro) plus 

 Lasso or Preemerge plus Amiben. Both are for preemergence or early postemergence 



