of 2 to 4 pounds of CDEC in 25 to 50 gallons of water per acre have been 

 used successfully for control of annual weeds in many of these crops in 

 the mid- Atlantic States with less injury to the crop than is experienced 

 when CIPC is used. Lower rates are used when daily temperatures aver- 

 age less than 60° F. 



Cantaloupes 



(1) Pre -emergence . --For control of most annual weeds: NPA at 2 to 3 

 pounds in 10 to 40 gallons of water per acre on light sandy soils, 3 to 4 

 pounds on loam soils, and 4 to 6 pounds on clay and muck soils. Will con- 

 trol weeds for 4 to 6 weeks with little or no crop injury. 



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

 per acre may be applied 4 to 6 weeks after emergence to extend the effec- 

 tive period of pre-emergence application. Post-emergence treatments have 

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

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

 emergency measures. 



Comments and precautions .- -Less likely to cause injury if applied 

 when soil temperatures are low. 



Carrots, Celery, Dill, Parsnips, Parsley 



Post- emergence . --For control of small annual weeds 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, in case of carrots and parsnips, before taproots are 

 more than 1/4 inch in diameter. Most effective if applied when air move- 

 ment is downward and relative humidity is high. Light aromatic oils should 

 only be applied to celery when in seedbeds. Later applications on the other 

 crops may result in off flavor. 



Cucumbers 



Pre-emergence and post-emergence .- -Same as for cantaloupes. 



Greens 



(1) Kale, Collards, Turnip Greens, Mustard Greens, Hanover Salad 

 Greens .- -Same control measures suggested for Cole Crops. 



(2) Spinach (Pre-emergence, early spring planting). --For control of 

 annual grasses and many broadleaved weeds: CIPC at 1 to 2 pounds on 

 sandy soils, 4 to 6 pounds on heavier mineral soils, and 6 to 8 pounds on 

 muck soils in 10 to 20 gallons of water per acre. When temperatures are 

 higher and the loss of CIPC through volatilization is greater, CIPC as a 

 pre-emergence spray should be applied at 4 pounds per acre on sandy soils 

 and 6 pounds per acre on heavier mineral soils. The lowest rates in the 

 suggested range should be used when temperatures are 60° F. or less, and 

 the higher rates when temperatures are above 60° F. Results have varied 

 widely with soil and climatic conditions. 



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