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Scale insects, Pesticides, Insecticides, ControlEdition | Availability |
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The lime, sulphur, and salt wash
1904, U.S. Dept. of Agriculture, Division of Entomology
in English
- Second edition.
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Book Details
Table of Contents
Early tests in Maryland. pp. 1.
Results of these tests
Ineffectiveness believed to be due to climate. pp. 2.
California wash again tested
Records of experiments in 1900. pp. 3.
Recommendations based on these experiments
Work done by other experiments. pp. 5.
How the wash affects the scale insect
Caution in estimating results. pp. 6.
The wash an available remedy for the East
Composition and preparation of the wash. pp. 7.
Precautions to be noted. pp. 8.
Edition Notes
"March 18, 1904."
Circular No. 52, Second Edition.
At head of title: U.S. Department of Agriculture, Division of Entomology.
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