Abstract

RIOS-VELASCO, Claudio; SANCHEZ-VALDEZ, Víctor M.; GALLEGOS-MORALES, Gabriel  and  CAMBERO-CAMPOS, Octavio Jhonathan. CpGV field evaluation on Cydia pomonella L. (Lepidoptera: Tortricidae). Rev. Mex. Cienc. Agríc [online]. 2012, vol.3, n.4, pp.797-804. ISSN 2007-0934.

From April 1^st to May 30ª, 2007, lower concentrations than commercially recommended of Cydia pomonella granulosis virus(CpGV) were applied to the larvae of C. pomonella in Jamé, Arteaga, Coahuila, México, which were 35, 75 and 150 mL ha (7.7X10¹¹, 1.65X10¹², and granules 3.3X10¹² ha), in an experimental orchard of apple with Golden and Red Delicious varieties. Efficiency was established in relation to the cumulative percentage of damaged fruit in the evaluation period, quantifying the total damaged fruits at each sampling date. There was a significant difference (p <0.05) in the percentage of damaged fruit treated with CpGV (0.09% to 0.58%) compared to the internal and external controls, 1.43% to 4.77% respectively. According to the results, low CpGV doses are effective for controlling the codling moth, as long as they apply on the day of emergence of the larvae.

Keywords : Cydia pomonella; CpGV; Baculoviridae; biofix; damaged fruit; granules; heat units.