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Title

Granulovirus formulations efficiently protect stored and field potatoes from Phthorimaea operculella and Tecia solanivora in Costa Rica

AuthorsGómez-Bonilla, Yannery; López-Ferber, Miguel; Caballero, Primitivo ; Murillo, Rosa ; Muñoz, Delia
KeywordsPhthorimaea operculella
Tecia solanivora
Baculoviruses
Granuloviruses
PhopGV
Microbial control
Issue DateApr-2013
PublisherSpringer
CitationBioControl 58(2): 215-224 (2013)
AbstractThe control efficiency of a Phthorimaea operculella granulovirus isolate from Costa Rica (PhopGV-CR1) against the concurrent insect pests P. operculella (Zeller) and Tecia solanivora (Povolny) (Lepidoptera: Gelechiidae) was evaluated. In warehouses, the best control efficiency was achieved with a powder formulate applied inside bags, which reduced injury over 70 % compared with the untreated controls. In the field, liquid and powder virus formulations significantly reduced injury between 56.2 and 81.7 % compared with the untreated controls, and were as efficient as chemical treatments. The efficiency of formulations stored at −20 °C for six months (liquid) or at ambient temperature for three months (powder) was maintained, but higher temperatures and/or longer exposure times resulted in loss of pathogenicity. The data presented here favor the inclusion of granulovirus formulations of PhopGV-CR1 in Integrated Pest Management programs against tuberworms in Costa Rica and give clues on storage conditions for the growers in this country.
Publisher version (URL)http://dx.doi.org/10.1007/s10526-012-9473-z
URIhttp://hdl.handle.net/10261/94100
DOI10.1007/s10526-012-9473-z
ISSN1386-6141
E-ISSN1573-8248
Appears in Collections:(IDAB) Artículos
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