Granulovirus formulations efficiently protect stored and field potatoes from Phthorimaea operculella and Tecia solanivora in Costa Rica
2013
Gómez-Bonilla, Yannery | López-Ferber, Miguel | Caballero, Primitivo | Murillo, Rosa | Muñoz, Delia
The 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.
اظهر المزيد [+] اقل [-]Project Plantón-Pacayas (INTA, Costa Rica)
اظهر المزيد [+] اقل [-]This research was financed with funds from the Project Plantón-Pacayas (INTA, Costa Rica).
اظهر المزيد [+] اقل [-]INTA, Costa Rica
اظهر المزيد [+] اقل [-]Peer reviewed
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Instituto de Agrobiotecnología