Resumo

SANCHEZ, Lourdes  e  RODRIGUEZ, Mayra G. POTENTIALITIES OF Heterorhabditis bacteriophora POINAR STRAIN HC1 FOR THE MANAGEMENT OF Hypothenemus hampei FERR. I. PARASITISMM AND SEARCH CAPACITY. Rev. Protección Veg. [online]. 2007, vol.22, n.2, pp. 80-84. ISSN 2224-4697.

In Cuba, Heterorhabditis bacteriophora strain HC1 has demonstrated favourable qualities as biological control agent of diverse pest insects under the Cuban conditions. It is being used successfully against mealybugs (Pseudococcidae) complex in coffee Cylas formicarius in sweet potato and diamond back (Plutella xyllostella) in cabbage, among others. In order to check its effect on the coffee berry borer (Hypothenemus hampei), main pest in coffee in Cuba, the susceptibility on different insect stages and the capacity of nematodes for penetrating coffee grains infested were evaluated. A mortality of 100% of larvae and pupae placed in Petri dishes and in coffee grains treated was registered at 48 hours. Infective juveniles, which parasite larvae at the moment of the emergency, were aggregated on the eggs. Under simulated field conditions, a 60% mortality was obtained in these stages inside coffee grains with a progressive increment in dependance of the evaluation moment, registering a half mortality of 93% at 17 days.

Palavras-chave : entomopathogenic nematode; coffee; Heterorhabditis bacteriophora; Hypothenemus hampei; coffee berry borer.

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