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Many growers now rely on annual foliar applications of B. 

 The usual practice is to add Solubor* to the first 2 cover sprays. 

 Fertilizer grades of borax may contain grit and should not be used 

 in a sprayer. Mature trees should receive 4 pounds of Solubor* 

 per acre each year. Consequently, the goal is to apply about 2 

 pounds per acre in each of the 2 applications. For young orchards, 

 the addition of 1/2 pound of Solubor* per 100 gallons (dilute basis) 

 to the first 2 cover sprays meets the B requirement of these trees. 

 Reports of New York State indicate that sprays can be concentrated 

 up to 8X with satisfactory results. 



Leaf samples from orchards treated with Solubor* have indicated 

 adequate leaf boron levels but the fruit was deficient in this ele- 

 ment . Whether or not B applied as a fertilizer more adequately 

 meets the B requirement of apples than foliar-applied B is not known 

 by us . 



Manganese (Mn) : This element is deficient in some apple orchards. 

 Apple leaves having Mn deficiency have interveinal fading of chloro- 

 phyll with the veins remaining green. The use of manganese-zinc 



fungicides may be of value in orchards low in Mn or zinc or both 

 elements . 



Zinc (Zn) : Based on optimum levels of Zn established by some states, 

 some of our orchards are low in this element. Massachusetts growers 

 have not used zinc sulfate sprays applied at the "green-tip" stage 

 of bud development to increase zinc levels but some use manganese- 

 zinc containing fungicides. These appear to be increasing Zn levels 

 in our orchards. 



*Trade name 



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A ONE-TWO PUNCH FOR WEEDS IN STRAWBERRIES 



Dominic A. Marini 

 Southeast Regional Fruit and Vegetable Specialist 



To minimize weed problems in new strawberry beds, some growers 

 are utilizing a one-two punch of DCPA (Dacthal*) followed by Chlor- 

 oxuron (Norex* or Tenoran*) with excellent results. DCPA is applied 

 at transplanting. When DCPA begins to lose its effectiveness, after 

 6 to 8 weeks, chloroxuron is applied when broadleaf weeds are less 

 than 2 inches tall. Where galinsoga is a problem, it should be ap- 

 plied before the weed exceeds 3/4 of an inch. 



DCPA and chloroxuron complement each other nicely. DCPA con- 

 trols annual grasses, and some broadleaf weeds including lambs 



*Trade name 



