期刊
JOURNAL OF INVERTEBRATE PATHOLOGY
卷 95, 期 2, 页码 146-150出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jip.2007.01.004
关键词
Metarhizium anisopliae; Otiorhynchus sulcatus; microbial control; fungal persistence
类别
The objective of this study was to determine the persistence of Metarhizium anisopliae (F52), measured as infectivity against black vine weevil larvae, in a soilless potting medium at six wholesale nursery locations across the Willamette Valley, Oregon. A granule formulation (0.30 and 0.60 kg/m(3)) was incorporated into media at planting and fungal persistence determined over two growing seasons. The fungus persisted in the potting media over the duration of the experiment with 50-60% of the larvae exposed to treated media becoming infected at the end of the experiment. The percentage of infected larvae gradually declined from >= 90% on week 3 to 40-60% by week 19. Larval infection rebounded over the fall and winter months of 2004 to 75-80% followed again by a slow decline over the course of the second growing season. Published by Elsevier Inc.
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