Collecting, handling, and releasing Rhinocyllus conicus, a biological control agent of musk thistle

Rees, N.E. (1982) Collecting, handling, and releasing Rhinocyllus conicus, a biological control agent of musk thistle. Documentation. Agricultural Research Service, Montana, USA.

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Abstract

This publication briefly describes the life cycle of musk thistle and the life history and habits of the biocontrol agent Rhinocyllus conicus Froel. It presents information on selecting new release sites and how to collect, handle, release, and monitor this weevil. Important points to remember are ( 1 ) adult weevils must be collected in the spring when the females are gravid, (2) each release should contain at least 500 adults, (3) release fields should not be mowed or sprayed for at least 2 years following release, (4) cattle and other livestock should be excluded from the release sites during the weevils' egg-laying period, and (5) infested plants showing water stress should be watered immediately to assure survival of the weevil

Item Type: Monograph (Documentation)
Uncontrolled Keywords: Rhinocyllus conicus, biological control, musk thistle, collecting, releasing, monitoring
Author Affiliation: Research Entomologist, Rangeland Insect Laboratory, Western Region, Agricultural Research Service (ARS), USDA, Bozeman, Montana, USA
Subjects: Plant Protection
Divisions: General
Depositing User: Ms K Syamalamba
Date Deposited: 09 Nov 2012 03:46
Last Modified: 09 Nov 2012 03:46
URI: http://eprints.icrisat.ac.in/id/eprint/8717

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