SURVEY FOR ORGANISMS ASSOCIATED WITH DYER’S WOAD, ISATIS TINCTORIA L. (BRASSICACEAE), IN CENTRAL ITALY, AND PRELIMINARY HOST SPECIFICITY TESTS FOR SOME POTENTIAL CONTROL AGENTS (INSECTA)

  • Gaetano Campobasso European Biological Control Laboratory, USDA-ARS, Rome Substation, Italy.
  • Enzo Colonnelli Rome, Italy.
  • Hank Mc Neel | hmcneel@mt.bnl.gov Bureau of Land Management, Billings, Montana, United States.

Abstract

A survey conducted in central Italy found 126 species of phytophagous insects from five orders and 25 families on dyer’s woad, Isatis tinctoria L., a biennial or short-lived perennial. About 75% of the species found attacking this weed were polyphagous, 20% were restricted to the family Brassicaceae, and only 5% were restricted to the genus Isatis. Four of the one hundred twenty six species recovered were specific enough to merit further research as candidates for biological control of I. tinctoria L. in the United States. Preliminary host range tests were conducted for the weevils Ceutorhynchus rusticus Gyllenhal, Ceutorhynchus peyerimoffi Hustache, Aulacobaris fallax (H. Brisout), and the fleabeetle Psylliodes isatidis Heikertinger. All tests were conducted at the USDA-ARS-EBCL Rome substation from 2003 to 2006 and are reported herein.

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Published
2008-04-30
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How to Cite
Campobasso, G., Colonnelli, E., & Mc Neel, H. (2008). SURVEY FOR ORGANISMS ASSOCIATED WITH DYER’S WOAD, ISATIS TINCTORIA L. (BRASSICACEAE), IN CENTRAL ITALY, AND PRELIMINARY HOST SPECIFICITY TESTS FOR SOME POTENTIAL CONTROL AGENTS (INSECTA). Fragmenta Entomologica, 40(1), 167-180. https://doi.org/10.4081/fe.2008.114