Further Studies On Zinc Sulfate in Peach Sprays With Limited Tests in Apple Spr
Further Studies On Zinc Sulfate in Peach Sprays With Limited Tests in Apple Spr
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Russet also resulted from 4- to 5-pound applications of copper sulfate in bordeaux. The influence on apples of small amounts of zinc sulfate was not determined.
4. Studies of the effect of zinc sulfate on the insecticidal value of lead arsenate and lime, conducted over a period of seven years, have not been conclusive. The limited data secured on codling moth control indicate that zinc sulfate has no marked influence in so far as this insect is concerned. The fact that oil was added to the spra...ys in this test may have had a bearing upon the results obtained.
5. On the basis of these studies zinc sulfate is not recommended as a fungicide in peach or apple sprays. In laboratory studies it proved much more toxic to apple scab (Venturia inaequalis (Cke. ) Wint. ) than to brown rot (Sclerotinia fructicola (Wint. ) Rehm. ). Under field conditions, however, it proved only 65 percent effective in the control of apple scab. No significant data have been secured from field studies on zinc sulfate in the control of brown rot, but laboratory tests indicate very little value for zinc sulfate in this capacity.
What to read after Further Studies On Zinc Sulfate in Peach Sprays With Limited Tests in Apple Spr?
You can find similar books in the "Read Also" column, or choose other free books by K J Kenneth John Kadow to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Russet also resulted from 4- to 5-pound applications of copper sulfate in bordeaux. The influence on apples of small amounts of zinc sulfate was not determined.
4. Studies of the effect of zinc sulfate on the insecticidal value of lead arsenate and lime, conducted over a period of seven years, have not been conclusive. The limited data secured on codling moth control indicate that zinc sulfate has no marked influence in so far as this insect is concerned. The fact that oil was added to the spra...ys in this test may have had a bearing upon the results obtained.
5. On the basis of these studies zinc sulfate is not recommended as a fungicide in peach or apple sprays. In laboratory studies it proved much more toxic to apple scab (Venturia inaequalis (Cke. ) Wint. ) than to brown rot (Sclerotinia fructicola (Wint. ) Rehm. ). Under field conditions, however, it proved only 65 percent effective in the control of apple scab. No significant data have been secured from field studies on zinc sulfate in the control of brown rot, but laboratory tests indicate very little value for zinc sulfate in this capacity.
What to read after Further Studies On Zinc Sulfate in Peach Sprays With Limited Tests in Apple Spr?
You can find similar books in the "Read Also" column, or choose other free books by K J Kenneth John Kadow to read onlineMoreLess
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