applied immediately after planting. Deep-germinating annuals are usually- 

 less likely to be controlled than shallow- germinating weeds. Perennial 

 w^eeds, such as nutgrass, quackgrass, Johnsongrass, Canada thistle, and 

 nailkw^eed are not controlled. To reduce the cost of chemical w^eed control in 

 soybeans, band treatments may be applied as described for cotton. 



Comments and precautions. --If heavy rains follow^ application before 

 crop emergence, treatment may injure soybeans. If prolonged drought 

 follows application, weed control may be erratic. DNBP compounds produce 

 vapors toxic to soybean seedlings if temperatures of 88°F. or higher pre- 

 vail for 5 to 10 days following treatment. Temperatures of 90OF. or higher 

 cause rapid evaporation of DNBP and may greatly reduce the period of 

 effective weed control and cause serious crop injury. 



PEANUTS 



Pre -emergence . --For control of annual grasses and broadleaved weeds, 

 such as crabgrass, pigweed, lambsquarters, morning-glory, cocklebur, and 

 others: Sesone at 3 pounds in 20 gallons of water per acre or DNBP amine 

 salt at 6 to 9 pounds in 10 to 20 gallons of water per acre applied during the 

 planting operation or any time after planting and before emergence. These 

 w^ill not control such perennial w^eeds as nutgrass, Johnsongrass, and Bernnuda- 

 grass. The treatment often is not effective in controlling deep gernninating 

 seedlings of cocklebur and other annuals. 



Comments and precautions . --Both sesone and DNBP may cause some 

 injury to peanuts on light sandy soils if heavy rains following application 

 leach herbicides into zone of germination. Effectiveness of sesone is re- 

 duced if prolonged drought follows application. Where sesone or other 

 herbicides are used, peanuts should be planted as deep as feasible to 

 minimize herbicidal injury. If average daily temperatures are 88°F., or 

 higher, from tinne of application to emergence of crop, DNBP compounds 

 will volatilize. This w^ill reduce the effective period of weed control, and 

 the vapors nnay injure germinating peanut plants. 



RICE 



(1) Late pre -emergence (suggested for Arkansas only). --For control of 

 barnyardgrass and other annual grass weeds: Apply CIPC at 6 to 8 pounds 

 per acre as a broadcast spray using 10 gallons per acre of total solution. 

 Apply as grass weeds emerge and before they get beyond the first leaf stage 

 of growth, usually 4 to 8 days after seeding. Drill seed rice 1 to 2 inches 

 deep. If the soil becomes dry to the point of crusting w^ithin 2 to 4 days after 

 spraying, irrigate the rice. Flood rice 10 to 14 days after spraying. 



(2) Late post-emergence . --For control of coffeeweed, curly indigo, mud- 

 plantain, red stem and other broadleaved weeds and certain sedges: Amine 

 salt formulations of 2,4-D, 2,4,5-T, MCPA, or silvex at 1/2 to 1-1/4 

 pounds, applied any tinne after rice is well tillered but before jointing or boot 

 stage. These will not control annual or perennial grasses. The rice plant is 



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