Accession Number:

ADA621497

Title:

Field Surveys to Identify Biocontrol Agents of Hydrilla verticillata from June - September 2012

Descriptive Note:

Technical note

Corporate Author:

ARMY CORPS OF ENGINEERS VICKSBURG MS ENGINEER RESEARCH AND DEVELOPMENT CENTER

Report Date:

2015-07-01

Pagination or Media Count:

11.0

Abstract:

Surveys to identify insect herbivores of Hydrilla verticillata L.f. Royle hydrilla Hydrocharitaceae were conducted in northern and western regions of Hubei Province and in Jiangxi and Guangdong Provinces from June through November 2012. Bagous sp. 2 weevils were collected in Suizhou from hydrilla and Hydrocharis dubia Blume Backer. Host preference testing and attempts at colonization are underway at the Chinese Academy of Sciences CAS laboratories in Wuhan. Bagous rufipennis Egorov Grachev weevils Bagous sp. 3 in previous reports have been colonized at the United States Department of Agriculture USDA, Agricultural Research Service ARS Australian Biological Control Laboratory ABCL in Brisbane, Australia, where host range testing has been initiated. Moths were common in Guangdong Province but appear to be the generalist Parapoynx diminutalis Snellen. Surveys will recommence in 2013 during the spring and summer period in Hubei Province and other southern China provinces.

Subject Categories:

  • Biology
  • Ecology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE