Sweet Corn 



(1) Pre -emergence . - -For control of annual broadleaved weeds and weed 

 grasses: Low-volatile esters of 2,4-D at 1/ 2 to 1 pound, an anaine salt of 

 2,4-D at 1 to 1-1/2 pounds, or DNBP amine salt at 4 to 8 pounds, in 20 to 40 

 gallons of water per acre. These are effective for 4 to 6 weeks after treat- 

 ment. 



(2) Post -emergence . - -For control of sensitive broadleaved weeds: Amine 

 salts of 2,4-D at 1/4 to 1/2 pound or a 2,4-D low-volatile ester at 1/8 to 1/4 

 pound in 5 to 20 gallons of water per acre applied when w^eeds are small and 

 while corn is 4 to 12 inches tall. DNBP amine salt may be used at 1 to 2 

 pounds per acre when corn is in the spike stage to 2-leaf stage. These do not 

 control grasses. 



Comments and precautions . - -Pre-emergence applications of 2,4-D, may- 

 result in some injury if applied to shallow-planted stands (1/4 to 1/2 inch). 

 Post-emergence applications of 2,4-D should not be made after corn is 

 12 inches tall, and drop nozzles should be used wherever practicable. 



Certain sweet corn varieties are not tolerant of 2,4-D. Small-scale trials 

 on local varieties should precede any large-area applications. 



Watermelons 



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

 sodium salt given for cantaloups. 



SMALL FRUITS 



Brambles (raspberries and blackberries) 



Pre-emergence and dormant sprays . --For control of weeds in early spring 

 in brambles grown in the hedge or linear system: First application- -(a) DNBP 

 amine salt at 2 to 4 pounds, (b) an amine salt of 2,4-D at 1 /2 to 1 pound, or 

 (c) sesone at 3 to 6 pounds in 20 to 40 gallons of water per acre applied before 

 emergence of weeds or growth. Second application- -Use the 2,4-D treatment 

 when weeds are still small but the new berry-plant growth tall enough for 

 spraying around the plant base without getting any chemical on the new growth. 



For control of winter annual grasses and broadleaved weeds in fall or early 

 winter: CIPC at 4 to 8 pounds in 20 gallons of water per acre prior to weed 

 emergence. This is particularly effective also in controlling chickweed after 

 emergence. 



Comments and precautions . - -Do not use 2,4-D inbrambles during bloom- 

 ing stage. Suitable mulches will aid in reducing weed problems, but mulching 

 costs usually are high. Bramble crops are tolerant to a number of herbi- 

 cides. 



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