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Modern spray pump, 150-gallon tank and 2 1-2-horsepower gasoline engine. With exception of pump and engine the apparatus is homemade

WHY, WHEN, and How

BY

CLARENCE M. WEED, D. Sc.

Professor of Zoology and Entomology, New Hampshire
College of Agriculture and the Mechanic Arts

ILLUSTRATED

Fourth Edition-Revised, Rewritten and Greatly Enlarged

NEW YORK
ORANGE JUDD COMPANY

1907

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Spraying has now come to be an established part of the work of fruit-growing.-L. H. BAILEY.

The time is now ripe for the declaration that profitable apple culture demands systematic spraying.-FREDERICK D. CHESTER.

Spray! Spray! Spray! Spray for insects and for fungous diseases. This is one of the secrets of successful fruitgrowing.-DELAWARE FARM AND HOME.

I believe in spraying, for I have tried and proven it. In many portions of our country to-day it is just as much a necessity as is underdraining, or fertilizing, or killing potatobugs.-MORTIMER WHITEHEAD.

The spray pump might well be adopted as the emblem of the fruit grower, and on it be inscribed that old legend: By this sign we conquer.-HON E. L. SMITH, Oregon.

Out of thirty-six tons of grapes last season I did not lose five pounds by rot, but I shall spray, rot or no rot. Spraying adds greatly to the health of the vines, and consequently to the size and beauty of the fruit.-JOHN BURROUGHS.

It should be remembered that in all cases success is dependent upon the exercise of proper judgment in making applications. Know the enemy to be destroyed; know the remedies that are most effective; and, finally, apply them at the proper season. Be prompt, thorough and persistent. Knowledge and good judgment are more necessary to success than any definite rules.-E. G. LODEMAN.

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