The Insects Destructive to Fruits (Classic Reprint) - Brossura

Slingerland, Mark Vernon

Brossura

ISBN 10: 1334273677 ISBN 13: 9781334273674

Casa editrice: Forgotten Books, 2019

Riassunto

Excerpt from The Insects Destructive to Fruits

Insects are among the most formidable enemies to success ful fruit-culture. The losses occasioned by the plum curculio alone amount to more than a million of dollars annually. Orchardists are sometimes deterred, by the attacks of this in sect, from attempts to raise the apricot, nectarine, peach, and plum; and the market supply of apples and pears is often much disfigured by it. The apple-worm, or codling-moth, is even a more formidable insect pest. New York fruit-growers alone yearly furnish $2, worth of apples and worth of pears to feed this insect; and other similar apple-growing States report nearly as large an annual loss from its ravages. The depredations of many other insect pests, like the apple tree and the peach-tree borers, the canker-worms, the tent caterpillars, the apple maggot, and the pear psylla, each causes annual losses amounting to several hundred thousand dollars.

As a general rule those remedial measures are of little value, which attempt merely to repel insects without destroy ing them. Experiments show that rarely is an insect repelled from attacking any part of a plant by the application of odor ous substances, like carbolic acid, tar, etc.

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Dettagli dell'edizione

• Editore: Forgotten Books
• Data di pubblicazione: 2019
• Lingua: Inglese
• ISBN 10: 1334273677
• ISBN 13: 9781334273674
• Rilegatura: Copertina flessibile
• Numero di pagine: 62
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