Abstract

ZULUAGA-CARDENAS, Paola Andrea et al. Entomopatógenos asociados a cítricos y su patogenicidad sobre Compsus viridivittatus Guérin-Méneville (Coleoptera: Curculionidae). Corpoica cienc. tecnol. agropecu. [online]. 2015, vol.16, n.2, pp.279-292. ISSN 0122-8706.

C. viridivittatus, citrus weevil distributed throughout the coffee maker and Andean region of Colombia. The larvae feed on roots and adults on leaves and flowers. On three citrus farms of the Valley were isolate and evaluated fungi and entompathogenic nematodes M. anisopliae and B. bassiana and Steinernema sp. and Heterorabditis sp. on larvae of C. viridivittatus 26, 36, 48 and 53 days of age. In 120 from 132 soil samples were found 21 fungi and none nematodes. Commercial B. bassiana B9 and B10 caused 100 % adult mortality in a time of 4.3 and 4 days. M. anisopliae M6 y M7 caused 94 % and 97 % of mortality to the 4.3 and 5 days. Steinernema sp. UNS09 caused 65 % of mortality on larvae of 48 and 53 days of age, seven days later. No were differences between UNS09 Steinernema and Heterorhabditis UNH16. Steinernema sp. UNS09 caused 85.7 % of mortality on 53 days larvae and 81.9 % and 81.1 % to larvae of 36 and 26 days. Heterorhabditis sp. UNH16 killed larvae of 36, 26 and 56 days was 79 %, 81 % and 75.4 % seven days later. In conclusion, fungi and nematodes can be an alternative to management of C. viridivittatus larvae.

Keywords : Beauveria bassiana; Metarhizium anisopliae; Steinernema; Heterorhabditis; Entomogenous fungis; Pest control; Isolation.

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