3 to 4 pounds on loam soils, and 4 to 6 pounds on clay and muck soils. NPA 

 will control weeds for 4 to 6 Aveeks w^ith little or no crop injury. CDEC at 

 3 to 6 pounds per acre is effective as pre -emergence applications. 



(2) Post -emergence .- -NPA sodium salt at 2 to 4 pounds in 20 to 40 gallons 

 of w^ater per acre may be applied 4 to 6 weeks after emergence to extend the 

 effective period of pre-emergence application. Post-emergence treatments 

 have not been as effective as pre-emergence treatments and often fail to con- 

 trol established weeds. Post-emergence treatments should be used only as 

 emergency measures. 



Comnnents and precautions . - -Use low^er rates on sandy soils and reduce 

 rate of CDEC when daily temperatures average less than 60OF. 



Carrots, Celery, Dill, Parsnips, Parsley 



(1) Pre -emergence . --Stoddard solvent at 40 to 100 gallons per acre is 

 effective in controlling many annual broadleaved w^eeds and w^eed grasses 

 in the early stages of growth before the crops emerge. Stoddard solvent does 

 not control ragweed or galinsoga. 



(2) Post -emergence . - -For control of small annual w^eeds on muck and up- 

 land soils: Application of undiluted special light aromatic oils such as 

 Stoddard solvent at 80 to 100 gallons per acre applied when weeds are 1 to 3 

 inches tall and not later than 6 weeks before harvest. Aromatic oils are most 

 effective if applied when air movement is downward and relative humidity is 

 high. Light aronaatic oils should be applied to celery only when in seedbeds. 

 Later applications than those suggested on the other crops may result in off 

 flavor. 



Cole Crops (cabbage, cauliflower, broccoli, brussels sprouts) 



Pre-emergence . --For control of annual grasses and many broadleaved 

 weeds in direct -seeded crops: CDEC at 3 to 6 pounds applied in 40 gallons 

 of w^ater per acre. Low^er rates are used w^hen daily temperatures average 

 less than 60°F. 



Cucumbers 



Pre-emergence and post-emergence . - -Follow suggestions for use of NPA 

 sodium salt given for cantaloups. 



Greens (collards, Hanover salad greens, kale, mustard greens, spinach, and 

 turnip greens) 



Same control measures suggested for Cole crops. 



Comments and precautions .- -These crops, and in some instances varie- 

 ties w^ithin a crop, show^ differing levels of tolerance to these chemicals. 

 Small trial use must therefore precede comnnercial use in each locality to 

 determine varietal and soil relationships. 



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