| 释义 |
Definition of rootworm in English: rootwormnounˈruːtwəːm An insect larva that feeds on the roots of plants. Example sentencesExamples - Fields remaining below the threshold level throughout the beetle egg-laying period are not expected to have economic populations of rootworms next year.
- As the root dries out rootworm will fall out and drop into the water where they can be more easily seen.
- However, not all continuous corn fields have economic infestations of corn rootworms.
- Late maturing fields are particularly susceptible to corn rootworms moving into them from nearby earlier maturing fields.
- The presence of adult beetles or rootworms in a field is not necessarily an indication of insecticide failure.
- Where first year corn rootworm is not a problem, annual rotation of corn with an alternative crop will eliminate rootworm problems.
- Without check strips, you won't know whether the absence of injury is due to insecticide efficacy or the absence of rootworms.
- Crop rotation is still the best approach to reduce densities of western corn rootworms in Nebraska.
- We are seeing root feeding from root worms, some of which are nearing maturity, while some are still hatching.
- The western corn rootworms themselves began rotating fields, to make sure future generations were always born in a cornfield, not a soybean field.
- Transgenic corn provides excellent control of corn rootworms in most instances.
- Twenty years ago, managing corn rootworms was simple: just rotate crops from corn to soybeans.
- Reducing losses resulting from rootworm on continuous corn is the predominant objective of most soil insecticide applications.
- Almost every acre of corn in Texas is treated with soil insecticides at planting to limit root damage caused by rootworm.
- The refuge helps prevent the development of resistance to European corn borer and corn rootworm.
- Corn rootworms are the target of almost half the insecticides used in row crops in this country, requiring more insecticide than any other pest.
- The corn rootworm enjoys the dubious distinction of triggering more insecticide use than any other single pest in U.S. agriculture.
- Planting an alternate crop in the spring literally can starve to death the new rootworms.
- French and colleagues are researching the seed mix in cooperation with Monsanto and conducting other research on rootworms.
- In continuous corn if beetle counts exceed 0.75 beetle per plant, damaging populations of corn rootworms are possible in that field next year.
Definition of rootworm in US English: rootwormnounˈro͞otˌwərm An insect larva that feeds on the roots of plants. Example sentencesExamples - We are seeing root feeding from root worms, some of which are nearing maturity, while some are still hatching.
- As the root dries out rootworm will fall out and drop into the water where they can be more easily seen.
- Reducing losses resulting from rootworm on continuous corn is the predominant objective of most soil insecticide applications.
- The western corn rootworms themselves began rotating fields, to make sure future generations were always born in a cornfield, not a soybean field.
- Fields remaining below the threshold level throughout the beetle egg-laying period are not expected to have economic populations of rootworms next year.
- Planting an alternate crop in the spring literally can starve to death the new rootworms.
- The presence of adult beetles or rootworms in a field is not necessarily an indication of insecticide failure.
- Twenty years ago, managing corn rootworms was simple: just rotate crops from corn to soybeans.
- Where first year corn rootworm is not a problem, annual rotation of corn with an alternative crop will eliminate rootworm problems.
- In continuous corn if beetle counts exceed 0.75 beetle per plant, damaging populations of corn rootworms are possible in that field next year.
- Late maturing fields are particularly susceptible to corn rootworms moving into them from nearby earlier maturing fields.
- The corn rootworm enjoys the dubious distinction of triggering more insecticide use than any other single pest in U.S. agriculture.
- French and colleagues are researching the seed mix in cooperation with Monsanto and conducting other research on rootworms.
- Corn rootworms are the target of almost half the insecticides used in row crops in this country, requiring more insecticide than any other pest.
- Transgenic corn provides excellent control of corn rootworms in most instances.
- Almost every acre of corn in Texas is treated with soil insecticides at planting to limit root damage caused by rootworm.
- The refuge helps prevent the development of resistance to European corn borer and corn rootworm.
- Without check strips, you won't know whether the absence of injury is due to insecticide efficacy or the absence of rootworms.
- Crop rotation is still the best approach to reduce densities of western corn rootworms in Nebraska.
- However, not all continuous corn fields have economic infestations of corn rootworms.
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