Bonfires, for a few evenings in the fore part of June, in an orchard infested with moths, will destroy vast numbers of them, before they have deposited their eggs. This can not be too strongly insisted upon.
Apple-Worms. a The young worm. b The full-grown worm. c The same magnified. d Cocoon. e Chrysalis.
f Perfect insect. g The same magnified. h i Passage of the worm in the fruit. j Worm in the fruit. k Place of egress.
Bark-louse.—Dull white, oval scales, one tenth of an inch long, which sometimes appear on the stems of trees in vast numbers, may be destroyed by the wash recommended above.
Woolly aphis—called in Europe by the misnomer, American blight—is very destructive across the water, but does not exist extensively on this side. It is supposed to exist, in this country, only where it has been introduced with imported trees. It appears as a white downy substance in the small forks of trees. This is composed of a large number of very minute woolly lice, which increase with wonderful rapidity. They are easily destroyed by washing with diluted sulphuric acid—three fourths of an ounce, by measure, from the druggist's—and seven and a half ounces of water, applied by a rag tied to the end of a stick. The operator must keep it from his clothes. After the first rain this is perfectly effectual.
Apple-tree borer.—This is a fleshy-white grub, found in the trunks of the trees. It enters at the surface of the ground where the bark is tender, and either girdles or thoroughly perforates the tree, causing its death. This is produced by a brown and white striped beetle about half an inch long. It does not go through its different stages annually, but remains a grub two or three years. It finally comes out in its winged state, early in June, flying in the night and laying its eggs. If the borers are already in the tree, they may be killed by cutting out, or by a steel wire thrust into their holes. But better prevent them. This can be done effectually by placing a small mound of ashes or lime around each tree early in the spring.
On nursery-trees their attacks may be prevented by washing with a solution of potash—two pounds in eight quarts of water. As this is a good manure, as well as a great remedy for insects, it had better be used every season.
| Borer, | Eggs. | Beetle. |