Journal
BIOCONTROL SCIENCE AND TECHNOLOGY
Volume 16, Issue 2, Pages 215-220Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/09583150500336010
Keywords
Dessicant dust; mycopathogen; formulations; storage; Coleoptera
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Combined treatment with Beauveria bassiana, and diatomaceous earth ( DE) was evaluated against the bean weevil Acanthoscelides obtectus and rice weevil Sitophilus oryzae. DE from Argentina was screened both alone or in combination with water or dry fungal formulations. DE killed 100% of A. obtectus and 68% of S. oryzae showing a significantly higher insecticidal effect than the fungal dust. For A. obtectus, median lethal time (MLT) with the DE-dry fungus was significantly lower than with a fungal aqueous-suspension. In S. oryzae, powder formulations with either of B. bassiana or DE showed a MLT significantly higher than the wet treatments.
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