Predatory beetle may suppress silverleaf whitefly
Autor: | James R. Brazzle, Eric Natwick, Michael P. Parrella, Charles H. Pickett, Kevin M. Heinz, Judy M. Nelson |
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Jazyk: | angličtina |
Rok vydání: | 1994 |
Předmět: | |
Zdroj: | California Agriculture, Vol 48, Iss 2, Pp 35-40 (1994) |
ISSN: | 2160-8091 0008-0845 |
Popis: | The coccinellid beetle, Delphastus pusillus, may be able to suppress the silverleaf (or strain B sweetpotato) whitefly that has infested California agriculture. Life history characteristics of this predatoi indicate that it is most effective as a biological control agent at high whitefly densities. D. pusillus releases in Imperial Valley cotton trials reduced immature whitefly densities to one-third of the densities found in cotton plots receiving no releases. |
Databáze: | OpenAIRE |
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