RICE 



Post- emergence . --For control of coffeeweed and other broadleaved 

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

 to 1-1/4 pounds, applied any time after rice is well tillered but before 

 jointing or reaching boot stage. Will not control annual or perennial grasses. 

 The rice plant is sensitive to 2,4, 5-T, MCPA, and 2,4-D in the early seed- 

 ling, boot, and early heading stages. Applications at these stages should be 

 avoided unless heavy weed infestations seriously threaten the crop. If 

 applications are necessary during sensitive stages of growth, use minimum 

 rate required to control the weeds. 



Comments and precautions . --Cotton, soybeans, and other crops sensi- 

 tive to 2,4-D, 2, 4, 5-T, MCPA, and silvex may be seriously injured by 

 vapors or spray drift from these herbicides. These four herbicides 

 rank as follows according to their toxicity to cotton, with the least toxic 

 listed first: 2, 4, 5-T, silvex, MCPA, and 2,4-D. In cotton-producing areas, 

 use only amine salt to control weeds in rice. Avoid application when wind 

 direction is toward cotton or other susceptible crops. In certain States 

 it is not permissible to use esters of the phenoxy compounds. State 

 regulations should be complied with in all cases. 



SUGAR BEETS 



(1) Preplanting .--For control of wild oats and some other annual grasses 

 and volunteer cereals: IPC at 3 to 6 pounds in 10 to 40 gallons of water per 

 acre applied to surface of soil and thoroughly disked into soil surface 2 to 

 4 weeks before planting. Usually not satisfactory for control of foxtails or 

 pigeon grass. 



(2) Pre -emergence . --For control of most annual grasses (except wild 

 oats) and some broadleaved weeds: TCAat5to 7 pounds in 10 to 20 gallons 

 of water per acre just before emergence of beets. In Western States where 

 TCA is not effective: DCU 4 at 15 pounds on the surface or 7-1/2 pounds 

 disked into the soil has been relatively effective depending on the weed 

 species, soil type, and available soil moisture, and several other soil and 

 climatic factors. 



(3) Post- emergence .- -For control of many broadleaved weeds on acid or 

 neutral soils in the humid regions: Sodium chloride at 200 to 300 pounds in 

 100 to 200 gallons of water per acre applied when beets are in 2- to 4-true- 

 leaf stage. Will not control lambsquarters or purslane. Dalapon at 4 to 6 

 pounds per acre will control seedling grasses and some broadleaved 

 weeds. Treatments with dalapon should be applied when the beets are in 

 the 4- to 6-leaf stage of growth. 



Comments and precautions .- -Chemical weed-control practices in 

 sugar beets vary widely depending on weeds present and several soil 

 and climatic factors. 



TOBACCO (PLANT BEDS) 



Pre -planting. --For control of most broadleaved weeds and annual grasses 

 in tobacco plant beds: 1 pound of commercial urea and l/2 pound of calcium 



4 DCU cannot be recommended (as of April 1, 1958) for use on table beets since evidence has not been devel- 

 oped to prove it will leave no residue or/and tolerances have not been set under Public Law 518. 



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