. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. its scaly covering is nearly white in color. It is two-brooded even in New York, and from ten to seventy-five purple eggs winter under each female scale. This scurfy scale is best controlled by the same methods as the preceding species. San Jose Scale {Aspi- diotus pcrniciosus). Fig. 229.—This insect first appeared in California many years ago. About 1887 it was in- troduced into the Eastern United States on nursery stock; and it has since attained in
. The American fruit culturist, containing directions for the propagation and culture of all fruits adapted to the United States. Fruit-culture. its scaly covering is nearly white in color. It is two-brooded even in New York, and from ten to seventy-five purple eggs winter under each female scale. This scurfy scale is best controlled by the same methods as the preceding species. San Jose Scale {Aspi- diotus pcrniciosus). Fig. 229.—This insect first appeared in California many years ago. About 1887 it was in- troduced into the Eastern United States on nursery stock; and it has since attained international import- ance, and has been widely distributed throughout this coun- try. It is recognized everywhere as a most destructive and dan- gerous fruit pest. It spreads all over the tree and fruit, at times literally covering it—in such cases often killing it, if undisturbed, in a few years. It thrives on all kinds of fruit-trees, and on the small fruits as, well as on most other deciduous trees or shrubs; peaches usually suc- cumb to its attacks more quickly than any other fruit-trees- It can spread only by direct contact of the living female with a live tree, either from the interlocking of the branches of an infested tree with others, or by being carried from one to another by birds or insects. Infested nursery stock is the most fertile source of distribution. While it is often found on the fruit, there is yet no definite evidence that such fruit was the source of any infestation. The reason this scale is so much more dangerous than either of the two bark-lice just discussed is because of its greater Fig, 224. Fig. 225. The Scurfy Bark-louse. Fig. 224.—c, Female ; d, male. FiG. 225.—Female .scales. Fig. 226.—Male scales. Figs. 225, 226, natural size ; Fig. 224 enlarged. (U. S. Div. of Entomology.). Fig. 227.—San Jos§ Scale. (Greatly magnified.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for re
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