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Updated: April 30, 2025
Other insects, such as the Hessian fly, the green-bug or spring grain aphis, the army-worm and various species of grasshoppers are killed by tiny parasitic insects whose eggs are laid in the bodies of the larger insects, but which, after being hatched, feed on them. To these natural methods of control man has added others. Cultivation is one of these methods.
The Apple Codling-Moth. Bulletin 41. Price 20c. The Gipsy Moth and How to Control It. Bulletin 275. The Brown-tail Moth and How to Control It. Bulletin 264. The Spring Grain Aphis or Green-Bug. Bulletin 93. The Army-Worm. Bulletin 4. The Hessian Fly. Bulletin 70. The Chinch-Bug. Bulletin 17. The Principal Household Insects of the U. S. Bulletin 4. Insects Affecting Domestic Animals. Bulletin 5.
It attacks the straw, causing the heads of wheat to fall over and wither away. The injury done by the green-bug comes just as the wheat begins to ripen, the tiny green creatures attaching themselves in great numbers to the heads of the wheat. Other insects which prey on the wheat crop are grasshoppers, the wheat midge, cutworms and army-worms.
Of the cereal crops, wheat suffers most from insects. Of the large number of insects that attack wheat, the three important species are the Hessian fly, the chinch-bug and the grain plant-louse or green-bug. The Hessian fly has been known to destroy as much as sixty per cent. of all the wheat acreage of a state.
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