classical biological control मीनिंग इन हिंदी

उदाहरण वाक्य

1. Classical biological control tends to be the only long-term sustainable solution to controlling exotic pests.
2. These insects were considered to be too mobile and to reproduce too fast to be readily controlled by classical biological control.
3. The first reported case of a classical biological control attempt in Canada involves the hymenopteran parasitoid " Trichogramma minutum ".
4. Most parasitoids in the native range of ALB have a broad host range, and are not suitable as classical biological control agents.
5. Importation or classical biological control involves the introduction of a pest's natural enemies to a new locale where they do not occur naturally.
6. 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.
7. 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.
8. "Puccinia jaceae " var . " solstitialis " is the first pathogen approved by the United States Department of Agriculture as a classical biological control agent.
9. 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.
10. 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.