. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). Some Insects of the Apple and Their Control 1743 every year. This is especially true in localities where little attention is given to fruit-growing. In this lies a hint that thor- ough spraying and cultivation of orchards each year as practiced by our most successful growers are, perhaps, the most satisfactory means of avoiding injury by this pest. The only remedy that experience has shown to be effective in reducing the injury on badly-infested varieties is the destruction of windfalls, which is ordinarily
. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). Some Insects of the Apple and Their Control 1743 every year. This is especially true in localities where little attention is given to fruit-growing. In this lies a hint that thor- ough spraying and cultivation of orchards each year as practiced by our most successful growers are, perhaps, the most satisfactory means of avoiding injury by this pest. The only remedy that experience has shown to be effective in reducing the injury on badly-infested varieties is the destruction of windfalls, which is ordinarily accomplished by pasturing the orchard with hogs or sheep. Recently the use of poisoned bait has been recommended for the destruction of the fly. The method employed is to syringe the lower branches with a mixture of molasses one pint, arsenate of lead three ounces and water four gallons. Insects that Attack the Foliage THE BLISTER :MITE This has in recent years become an important pest of the apple. Its work is now quite common in plantings that are neglected or indifferently sprayed throughout the apple-growing sections of western Xew York. Destructive outbreaks of the pest have also been noted in orchards about Lake Fig. 139. The Blister Mite (miicli enlarged) The mite that is responsible for the injury to the foliage is a microscopical, vermiform creature as shown in fig. 139. The mites burrow into the leaves from below and the irritation they cause induces the growth of galls. These at first are greenish pimples with a more or less reddish tinge. The color strengthens as the galls increase in size, appearing as dead, corky areas of varying size. These galls or l)]isters on apple foliage resemble, in general effect, the spots produced by bordeaux when sprayed under unfavor- able weather conditions, but the bordeaux spots are depressed or, at least, are not raised above the surface of the leaf, while the. Please note that these images are extracted from scanned p
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