. Horticulture; a text book for high schools and normals, including plant propagation; plant breeding; gardening; orcharding; small fruit growing; forestry; beautifying home grounds; the soils and enemies involved. apples begin to hang downward (Fig. 120and 121). The spray materials used should all contain arsenical poison sothat the young larvse will be killed as soon as they begin to eattheir way into the fruits. Arsenate of lead is usually preferred toParis green. As the apple is subject to a number of diseases, Bor-deaux mixture is usually applied at the same time. Arsenate oflead mixed wi
. Horticulture; a text book for high schools and normals, including plant propagation; plant breeding; gardening; orcharding; small fruit growing; forestry; beautifying home grounds; the soils and enemies involved. apples begin to hang downward (Fig. 120and 121). The spray materials used should all contain arsenical poison sothat the young larvse will be killed as soon as they begin to eattheir way into the fruits. Arsenate of lead is usually preferred toParis green. As the apple is subject to a number of diseases, Bor-deaux mixture is usually applied at the same time. Arsenate oflead mixed with Bordeaux mixture at the rate of about threepounds of poison to fifty gallons of Bordeaux mixture is applied asa fine spray. This should be done not only just after the petals fall,but should be repeated again about two weeks later. This willcounteract the attacks of the latest insects of the spring brood. 195 196 ENEMIES OF THE APPLE, PEAR, AND QUINCE Apple —The apple tree is attacked by several most common of these is the so-called flat headed apple treeborer, which is the larva of a buprestid beetle. The larva lives inthe tree about two years and burrows chiefly in the sap wood and. Fig. 120.—Three stages for spraying apple and pear trees. .1, winter buds open, sprayfor scab, aphids, and bud moth. 2, pink or pre-blossom, spray for scab, bud moth, and leafroller. 3, calyx spray for scab and codling moth. (Oregon Station.)
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
