Injurious insects and useful birds, successful control of farm pests / by F.L. Washburn.
- F. L. Washburn
- Date:
- [1918], ©1918
Licence: Public Domain Mark
Credit: Injurious insects and useful birds, successful control of farm pests / by F.L. Washburn. Source: Wellcome Collection.
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![trunk may be largely prevented by wrapping the trunk with building paper. This paper should extend an inch or two below the surface of the ground. These wrappings should be appiie before the moths emerge and should be removed after egg-laying is over. One can also resort to digging the borers out m the tall and again in the spring. This is a good plan for the c out a. Fig. 136.—Peach-tree borer (S. exitiosa): A, male; B, female. The Plum-tree Borer (Sesia pidipes G. and B,.). This borer is quite a common pest, injuring the inner bark and sap wood of the trunk and limbs of plum and similar trees. . It works somewhat after the manner of the preceding species. It is found in both the cultivated and wild plum and also in wild cherries. It turns into a clear-winged moth, the two sexes resembling closely the male of the \ peach-tree borer—in fact, is hardly to be distinguished from that species. I ] Control—Cut out and burn in- I tested parts of the tree. } The Fruit-tree Bark Beetle (Scohj- n/ lus rugulosus Ratz).—If it were not ^ for various enemies this insect would Fig 137.—Fruit-tree bark beetle; dorsal be very injurious. The adult appears view and in profile, (u. s. Bu. Ent.) ear]y Spring. Its presence is de- tected from the fact that the outer bark is penetrated by numerous small “worm-holes” or “shot-holes.” From these holes the gum exudes, especially in the case of stone fruits. Weak or diseased trees are most subject to attack, but young, healthy trees may also suffer. Life History.—From the worm-holes the beetles emerge m April and May (Fig. 137). The female burrows through the bark to the sap wood, where she eats out a vertical brood-chamber.](https://iiif.wellcomecollection.org/image/b29821289_0138.jp2/full/800%2C/0/default.jpg)
