Report of the Secretary Volume 37

Report of the Secretary Volume 37

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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. 1899 edition. Excerpt: ...the very large, rich, glossy foliage, may even render it desirable as an ornamental tree. Keiffer possesses peculiarities of both tree and fruit, which indicate a probable hybridization, with sinensis as one of the parents. If valuable at all in Michigan it is for strictly commercial purposes, upon quick, warm soils and to catch the trade of those who are won by looks rather than quality. Farther south, with longer seasons, it is improved in beauty, size and perhaps even in quality. APPLES.--Pyrus. The pruning of apples was com uenced on March 29, and completed on or about April 3. On June 2 apples (and pears also) were sprayed for scab and codling moth, using Bordeaux of ordinary strength, with three ounces of Paris green in each 40 gallons of the mixture. The spray with this mixture was repeated on June 18 for the same purpose, and was again applied on July 6 to 8. s The green aphis has been but lightly troublesome upon the apple, though a few were discovered, mostly upon small trees. These were effectively treated with tobacco decoction on June 18. On September 25 Woolly Aphis, Schizoneura lanigera (Hansm), having appeared upon a few twigs of apple, a decoction of tobacco stemB was applied, and this not proving fully effective they were again sprayed, this time effectively, with kerosene emulsion. The three sprayings, though apparently effective against scab, appeared to be less so as a preventive of codling moth, a large percentage of the fruit betraying the presence of the larvae--a result perhaps due to tardy or inefficient spraying, or perchance to the adulteration of the poison used. No insect depredations have been observed, aside from those noted in connection with spraying. There are at present two hundred and ninety-five...
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Product details

  • Paperback | 256 pages
  • 189 x 246 x 14mm | 463g
  • United States
  • English
  • black & white illustrations
  • 1236914589
  • 9781236914583