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FUNDAMENTALS OF AGRICULTURE. 



SECTION XLVI. ORCHARD AND GARDEN INSECTS. 



By PROF. A. L. QUAINTANCE, 

 Bureau of Entomology, U. S. Dept. of Agriculture. 



A large number of insects feed directly or indirectly 

 upon the wood, foliage or fruit of orchard and vine- 

 yard plants, and an equally large number depredate 

 upon various garden crops. Comparatively few spe- 

 cies, however, are of first importance, but these are 

 present almost every year, and are so destructive that 

 control measures are necessary for profitable crop 

 production. 



ORCHARD INSECTS. 



San Jose Scale. The San Jose or Chinese scale in- 

 fests practically all orchard trees, as apple, pear, plum, 

 etc., and also many shade trees and ornamental plants. 



THE SAN JOSE SCALE, AND ITS WORK. 



i. Peach tree, with top killed by the scale; 2, peach twig, showing male and female 

 scale; 3, peach tree badly infested. 



