Annual Meeting of the Florida State Horticultural Society Volume 31-33

Annual Meeting of the Florida State Horticultural Society Volume 31-33

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 edition. Excerpt: ...a full crop of real bright fruit marketed from the grove of which the third gentleman is manager. The prices obtained have always been low and the yield not up to the standard. The fungi which attack white fly and scale are truly a great benefit to the citrus grower but it is rarely possible to control these insects sufficiently with fungi to prevent great damage being done by them. We have no known fungi which attack thrips and rust mite. They are easily controlled with a lime sulphur and nicotine solution. But this solution is also a fungicide. By its use the beneficial fungi are destroyed to a great extent. It is also necessary to use a fungicide in the control of citrus scab, withertip and many other diseases caused by fungi, which makes the use of friendly fungi as the only preventative of white fly and scale not practicable. Citrus Scab--September: Spraying is an expensive operation, as concerns first cost. It requires careful study to determine the proper time of application and the right material to be used. It likewise requires thoroughness in application to obtain results. It may be done at such time and in such manner as to be of no value whatsoever to the grower. It is estimated by those who are in a position to know, that thrips when most plentiful cause a dropping of from 50% to 75% of the fruit and at least 20% under less favorable conditions. It is also estimated that bad infestations of white fly and scale diminish the size of the fruit 20% to 25%, and greatly reduce the vitality of the tree. Rust mite causes fruit that is perfect in every other respect, to be placed in the second and third grades. The second grade brings from 50 to 75 cents per box less than the first. I have record of a fourteen-acre orange grove more

Product details

  • Paperback | 322 pages
  • 189 x 246 x 17mm | 576g
  • United States
  • English
  • black & white illustrations
  • 1236743032
  • 9781236743039