classical biological control वाक्य
उदाहरण वाक्य
मोबाइल
- Classical biological control tends to be the only long-term sustainable solution to controlling exotic pests.
- These insects were considered to be too mobile and to reproduce too fast to be readily controlled by classical biological control.
- The first reported case of a classical biological control attempt in Canada involves the hymenopteran parasitoid " Trichogramma minutum ".
- Most parasitoids in the native range of ALB have a broad host range, and are not suitable as classical biological control agents.
- Importation or classical biological control involves the introduction of a pest's natural enemies to a new locale where they do not occur naturally.
- The effectiveness of this species in preying on economic pests resulted in its use in classical biological control programs in other countries, including Eastern Europe and Russia.
- Classical biological control seeks to introduce a species that is not already present in the environment in the hope that it will become established and eventually control the pest.
- "Puccinia jaceae " var . " solstitialis " is the first pathogen approved by the United States Department of Agriculture as a classical biological control agent.
- The United States Department of Agriculture ( USDA ) initiated research in classical biological control following the establishment of the Division of Entomology in 1881, with C . V . Riley as Chief.
- The population of " Levuana iridescens ", the Levuana moth, a serious coconut pest in Fiji, was brought under control by a classical biological control program in the 1920s.
- "The exotic nature of the mealy bug and the known effective natural enemy . . . indicate that classical biological control would be the most appropriate long-term strategy, " she said.
- There are three basic types of biological pest control strategies : importation ( sometimes called "'classical biological control "'), in which a natural enemy of a pest is introduced in the hope of achieving control; augmentation, in which locally-occurring natural enemies are bred and released to improve control; and conservation, in which measures are taken to increase natural enemies, such as by planting nectar-producing crop plants in the borders of rice fields.
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