Evaluation systems capture Metamasius hemipterus and Rhynchophorus palmarum (Curculionidae) in peach palm plantations (Bactris gasipaes) and oil palm (Elaeis guineensis) in the south of Bahia / Avaliação de sistemas de captura de Metamasius hemipterus e Rhynchophorus palmarum (Curculionidae) em plantios de pupunha (Bactris gasipaes) e dendê (Elaeis guineensis) no sul da Bahia

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Metamasius hemipterus L. and Rhynchophorus palmarum L. (Coleoptera: Curculionidae) stand out among the species of insect pests most important to the cultivation of peach palm (Bactris gasipaes Kunth) and oil palm (Elaeis guineensis Jacq), respectively. In addition to the direct damages, these pests can act spreading fungus and bacteria. This study aimed to evaluate the efficiency of the attractive collection of mass M. hemipterus and R. palmarum in agroecosystem of peach palm and oil palm. Three experiments were conducted: the first, two formulations of pheromone, combolure and rhynchophorol, were tested in trapping bucket-type open in peach palm plantation, and traps of the type tank in oil palm plantation. The second, tested the efficiency of traps type bucket with funnel in peach palm plantation, using three different types of baits (combolure+ sugarcane; rhynchophorol+cane and sugar cane only). And in the third experiment, focuses on two types of baits feed usually associated with the pheromone traps. In peach palm plantation, you can see that the formulation is more efficient combolure that rhynchophorol the attraction of M. hemipterus. For R. palmarum, there was not a significant difference in attractiveness between the formulations. In oil palm plantation, the formulation combolure was more efficient than rhynchophorol both for M. hemipterus as to R. palmarum. Traps type Bucket with funnel shown to be efficient in the collection of M. hemipterus and R. palmarum, but there was no significant difference between the baits used. Lure the basis of sugar cane were more efficient than pejibaye meristem of the attractiveness of M. hemipterus and R. palmarum. It may be noted, however, that both in pejibaye how much in oil palm, traps containing the formulation combolure collected a greater number of M. hemipterus and R. palmarum. The use of bucket-type traps baited with pheromone tank and more sugar cane, sprayed with insecticide, when opened in the upper region are recommended when you want to collect large numbers of individuals. But in small area, it is recommended the use of traps type bucket with funnel, because it is not necessary to use insecticide and because of that does not eliminate potential predators, which could possibly fall into the traps.

ASSUNTO(S)

rhynchophorus palmarum feromônio bactris gasipaes metamasius hemipterus elaeis guineensis entomologia agricola bactris gasipaes elaeis guineensis rhynchophorus palmarum pheromone metamasius hemipterus

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