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Tytuł pozycji:

Using multiple insecticidal microbial agents against diamondback moth larvae - does it increase toxicity?

Tytuł :
Using multiple insecticidal microbial agents against diamondback moth larvae - does it increase toxicity?
Autorzy :
Narciso, Josefina
Ormskirk, Marsha
Jones, Sandra
Rolston, Phil
Moran-Diez, Maria Eugenia
Hurst, Mark
Brookes, Jennifer
Glare, Travis
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Temat :
PLUTELLIDAE
DIAMONDBACK moth
INSECT pathogens
ENTOMOPATHOGENIC fungi
BIOLOGICAL pest control agents
LARVAE
BEAUVERIA bassiana
GREATER wax moth
Źródło :
New Zealand Journal of Agricultural Research; Jun2021, Vol. 64 Issue 2, p178-193, 16p
Czasopismo naukowe
The use of microbial insect pathogens as biocontrol agents is a well-established practice, with several bacteria and fungi available in commercial products. However, lack of efficacy, persistence and restricted host ranges are limiting the widespread uptake of insect pathogens. Combining multiple agents into a single product may overcome some limitations, if they are compatible and could provide synergy. In laboratory bioassays and field applications, we examined the combined effect of two insecticidal bacteria, Yersinia entomophaga MH96 and Brevibacillus laterosporus (1951 and 1821) and the entomopathogenic fungus, Beauveria bassiana J18 against larvae of diamondback moth, Plutella xylostella. In laboratory bioassays, effects of combined bacterial agents were greater than additive at lower doses, but less than additive at higher dose. Results of the field trial showed no significant difference between the combined agents and the single treatments in most cases, although there was reduction in insect damage in combined treatments. [ABSTRACT FROM AUTHOR]
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