Papers on Deciduous Fruit Insects and Insecticides: I. The Pear Thrips; II. The Spring Canker-Worm; III. The Trumpet Leaf-Minet of the Apple; IV. The ... Investigations in 1907; VII. Demonstrat - Tapa blanda

Sinopsis

Excerpt from Papers on Deciduous Fruit Insects and Insecticides: I. The Pear Thrips; II. The Spring Canker-Worm; III. The Trumpet Leaf-Minet of the Apple; IV. The Lesser Peach Borer; V. The Lesser Apple Worm; Vi. Grape Root-Worm Investigations in 1907; VII. Demonstration Spraying for the Codling Moth

The writer Offers this paper rather as an introduction for future work than as a completed account, and it is intended especially for the fruit grower, that he may understand the nature of the insect and its injury. The alarm felt for the safety of the deciduous fruit industry, which the pear thrips caused during 1904 and 1905, in the light of our pres ent knowledge need not again be experienced, and, although no effect ive means of control are yet offered, a knowledge of the life habits should do much to clear away the uncertainty usually following the first appearance of a destructive pest in any locality.

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