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Selection of native fungi strains pathogenic to Vespula germanica (Hymenoptera: Vespidae)
The yellowjacket wasp, Vespula germanica F., is considered a serious pest of productive and recreational activities worldwide. A pathogenicity study was carried out with 29 strains of Metarhizium anisopliae and 30 of Beauveria bassiana against worker and male wasps. Wasps of the same age were fed wi...
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Published in: | Agricultura técnica 2007-12, Vol.67 (4), p.335-342 |
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Main Authors: | , , |
Format: | Article |
Language: | eng ; por |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Get full text |
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Summary: | The yellowjacket wasp, Vespula germanica F., is considered a serious
pest of productive and recreational activities worldwide. A
pathogenicity study was carried out with 29 strains of Metarhizium
anisopliae and 30 of Beauveria bassiana against worker and male
wasps. Wasps of the same age were fed with liquid sugar baits
containing 1 x 108 conidia mL-1 suspensions of each strain. The highest
mortality and sporulation were obtained with the strains Qu-B941 and
Qu-B933 of Beauveria bassiana, reaching 79 and 95% mortality for
workers and 66 and 73% for males, respectively. The strains were tested
on workers of V. germanica with increasing amounts of bait from 0 to 1
x 108 conidia mL-1. The results also showed that 1 x 108 conidia mL-1
increased up to 90 and 97% the mortality of workers with Qu-B941 and
Qu-B933 strains, respectively. |
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ISSN: | 0365-2807 0365-2807 |
DOI: | 10.4067/S0365-28072007000400001 |