hessian fly การใช้
- In truth, Jefferson's pretext in 1791 was to study the Hessian fly, not the butterfly, but the point stands.
- The beetles, along with the Hessian fly's effects on wheat, then became the main focus of his early work.
- VanKoughnet efficiently reorganised the department of Agriculture, and in particular took effective measures to check the ravages of the Hessian fly and weevil.
- Larval plant feeders ( such as the Hessian fly larva ) cause root, stem, or leaf galls to be formed by the host plant.
- Morris studied the habits of the hessian fly, concluding that the eggs were laid in the grain rather than the stalk as had been previously thought.
- The larvae, footless grubs nearly an eighth of an inch long when fully grown, feed upon the flower, rendering it abortive, and not upon the stem like the Hessian fly.
- The nematode " Ditylenchus dipsaci ", leaf beetle, fruit fly, gout fly, cereal chafer, dart moth, cereal bug, Hessian fly, and rustic shoulder knot are among insects which can seriously affect rye health.