Journal
JOURNAL OF APPLIED MICROBIOLOGY
Volume 100, Issue 5, Pages 1063-1072Publisher
WILEY
DOI: 10.1111/j.1365-2672.2006.02808.x
Keywords
Beauveria brorigniartii; entomopathogenic; fungus; Melolontha melolontha; persistence; RAPD-PCR; virulence
Categories
Ask authors/readers for more resources
Aims: To monitor and select genetically characterized strains of Beauveria brongniarrii to be used as microbiological control agents against Melolontha melolontha in different climatic conditions of the Valley of Aosta (northwest Italy). Methods and Results: Molecular random amplified polymorphic DNA markers allowed monitoring of five B. brongniartii strains (C2, F, K2, N3 and W2) in field trials. Ten sites were chosen at Jovencan, Saint-Pierre and Quart areas, where a mixture of the five strains colonizing rye kernels was applied to the soil of each M. melolontha infested site. Growth, persistence and virulence on M. melolontha larvae of five fungal strains were evaluated in two subsequent 24-month Studies. Beauveria brongniartii grew best at the Jovencan sites. Not only did strain F persist better than the other strains in most soil samples but it was also the most virulent strain. Strain F was isolated the most frequently from infected M. melolontha larvae recovered from the test sites. A general decrease in the larvae rate was detected in the test field soil. Conclusions: Strain F of B. brongniartii was better than other strains in growth, persistence and virulence against M. melolontha larvae in the test site soil. Significance and Impact of the Study: Results obtained from preliminary field trials support the use of strain F as a biological control agent against M. melolontha in the Valley of Aosta even if further targeted studies are still necessary.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available