Skip to Main Content
Erynia radicans as a mycoinsecticide for spruce budworm controlAuthor(s): Richard S. Soper
Source: In: Grimble, David G.; Lewis, Franklin B., coords. Proceedings, Symposium: Microbial control of spruce budworms and gypsy moths; 1984 April 10-12; Windsor Locks, CT. Gen. Tech. Rep. NE-100. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 69-76
Publication Series: General Technical Report (GTR)
Station: Northeastern Research Station
PDF: Download Publication (651.31 KB)
DescriptionThe entomopahtogenic fungus Erynia radicans, has been under investigation for several years as a possible alternative to chemical control of the eastern spruce budworm. A commercial production method has been developed which allows the formulation of this pathogen as a mycoinsecticide. A standardized bioassay method was used to select strain RS141 as the most potent isolate. The SD50 was found to be 11 conidia/mm2 with a slope o f 2.21 against 6th instar larvae and a ST50 at 20 C of 3.5 days. When the mycoinsecticide is applied in the field, conidia were produced for up to 5 days during wet periods. Temperature below 10 C seem to limit the fungus activity. It is recommended that the research continue with emphasis on epizootiological investigations and selection of low temperature strains.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationSoper, Richard S. 1985. Erynia radicans as a mycoinsecticide for spruce budworm control. In: Grimble, David G.; Lewis, Franklin B., coords. Proceedings, Symposium: Microbial control of spruce budworms and gypsy moths; 1984 April 10-12; Windsor Locks, CT. Gen. Tech. Rep. NE-100. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 69-76
- Influence of temperature and humidity on the viability of Ophiognomonia clavigignenti-juglandacearum Conidia
- Evaluating the virulence and longevity of non-woven fiber bands impregnated with Metarhizium anisopliae against the Asian longhorned beetle, Anoplophora glabripennis (Coleoptera: Cerambycidae)
- Morphology, cultural characteristics, and pathogenicity of Rhizosphaera kalkhoffii on Picea spp. in northern Minnesota and Wisconsin
XML: View XML