Susceptibility of Larvae of the Black Cutworm to Species of Entomopathogenic Bacteria, Fungi, Protozoa, and Viruses

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.


About 25% of 63 microorganisms known to be pathogenic to insects (7 of 38 viruses, 5 of 8 bacteria, 2 of 6 fungi, 1 of 11 protozoans) were sufficiently active (induced greater than 30% mortality) against larvae of Agrotis ipsilon (Hufnagel) to warrant additional testing to obtain an estimated LC50. The LC50 for the protozoan, Vairimorpha necatrix (Kramer) was 68 spores/mm2 Nomuraea rileyi (Farlow) Samson and Metarrhizium anisopliae (Metchnikoff) Sorokin, both fungi, had LC50,s of 219 and 807 conidia/mm2, respectively. The LC50 for viruses ranged from 260 inclusion bodies/mm2 for the nucleopolyhedrosis virus (NPV) of Mamestra brassicae (L.) to 7263 inclusion bodies/mm2 for the NPV of Pseudopluisa includens (Walker). The LC50 for 5 preparations of the bacterium Bacillus thuringiensis Berliner ranged from 7.3 to 55.9 ng/mm2

Document Type: Research Article

Publication date: October 1, 1979

More about this publication?
Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more