Comments and precautions .- -Follow those given for weed control in 

 field corn. Pre-emergence applications of 2,4-D, however, may result 

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



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



SMALL FRUITS 

 Brambles (Raspberries, Blackberries) and Blueberries 



(1) For control of weeds in early spring in brambles grown in the hedge 

 or linear system: First application- -(a) DNBP 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 

 new canes. Second application- -Delay 2,4-D treatment until new canes are 

 tall enough to permit directed basal application without getting spray on 

 cane tips. Apply all basal-directed contact sprays when weeds are small. 



(2) For control of winter annual grasses and broadleaved weeds in fall 

 or early winter: CIPC n at 4 to 8 pounds in 20 gallons of water per acre 

 prior to weed emergence. Particularly effective also in controlling chick- 

 weed after emergence. 



(3) In recent preliminary research investigations, monuron at 1 to 3 

 pounds in 50 gallons of water per acre applied to weed-free cultivated soil 

 in the dormant season has controlled annual grasses and broadleaved weeds 

 without significant injury to the crop. 



Comments and precautions . --Do not use 2,4-D in brambles during 

 blooming stage. Suitable mulches will aid in reducing weed problems, 

 but mulching costs usually are high. Bramble crops are tolerant to a 

 number of herbicides. 



Grapes 



(1) For control of annual grasses and broadleaved weeds beneath trellis: 

 Oil-water emulsion of CIPC and DNBP. A mixture of 6 to 10 pounds CIPC, 

 plus 1 pound of oil-soluble DNBP in an oil-water emulsion (10 gallons of 

 oil plus 40 gallons of water) applied to an 18- to 24-inch band on each side 

 of the trellis at the rate of 50 gallons per acre will give excellent control 

 of emerged grasses and broadleaved weeds. The contact action of DNBP 

 kills the emerged annuals and the CIPC provides residual pre-emergence 

 weed control. 



(2) In recent research studies, monuron applied prior to weed emergence 

 at 2 pounds in 40 gallons of water per acre as a soil treatment in the dor- 

 mant season gave effective control of annual grasses and broadleaved weeds 

 in mature vineyards. One application per year usually is adequate. 



"Sesone cannot be recommended (as of April 1,1958) for use on blackberries and blueberries since evide ice 

 has not been developed to prove itwillleave no residue or/and tolerances have not been set under Public Law j18. 



12 CIPC cannot be recommended (as of April 1, 1958) for use on blueberries 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. 



- 28 - 



