. Better fruit. Fruit-culture. April, 1921 and emerges to begin boring into the tips of the trees about the time the blos- soms have opened. Like most of the injurious insects in the United States, the twig-borer is not a native but was introduced into this country from Western Asia. It has been known in the United States since 1860 and now has a wide distribution. While it feeds more generally on the peach than on others of the stone fruits, it attacks also apricots and plums and is of particular importance in Idaho be- cause of the loss it causes prune grow- ers. Cause of Injury INJURY is ca
. Better fruit. Fruit-culture. April, 1921 and emerges to begin boring into the tips of the trees about the time the blos- soms have opened. Like most of the injurious insects in the United States, the twig-borer is not a native but was introduced into this country from Western Asia. It has been known in the United States since 1860 and now has a wide distribution. While it feeds more generally on the peach than on others of the stone fruits, it attacks also apricots and plums and is of particular importance in Idaho be- cause of the loss it causes prune grow- ers. Cause of Injury INJURY is caused by the larvae or worms of the borer. • These hiber- nate in small, silk-lined cells just be- neath the surface of the bark in the crotches of branches and twigs. In the fall they may be easily located by the presence of little mounds of borings over the entrances of their burrows. After larvae have ceased activity in the fall and the borings are destroyed or rubbed off, they are difficult to dis- cover and the orchardist who would find them is likely usually to have con- siderable digging around in the crotches if he observes them. At about the time peach buds begin to show pink in the spring the over- wintering larvae become active, work themselves out of their silk-lined cells and make their way to the twigs where,. POTASH PAYS YIELD, size, flavor, and shipping quality of fruits are dependent on the kind and amount of plant food available to the crop. With the right kind of fertilization riper fruits can be harvested and shipped, and still reach the consumer in satisfactory- condition. The improved flavor, odor, and appear- ance of such fruits help sales in whole- sale and retail markets. The fertilizer for fruit should be well balanced, and contain from 7 to 10 per cent, of Potash. SOIL & CROP SERVICE, POTASH SYNDICATE H. A. HUSTON, Manager 42 Broadway New York WHEN WRITING ADVERTISERS BETTER FRC1T. Please note that these images are extracted from scanned page ima
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