Purba Rolettha Y., Desmier De Chenon Roch, Prawirosukarto Sudharto, Morin Jean-Paul, Rochat Didier.
2000. Effect of Oryctes rhinoceros pheromone (ethyl 4-methyloctanoate) diffusion rate on the size of pest catches.
In : XXI International congress of entomology. Gazzoni D.L. (ed.). EMBRAPA-Soja, SEB
Résumé : Oryctes rhinoceros (Coleoptera, Scarabaeidae, Dynastinae) is one of the most important pests to be considered when replanting coconut and oil palm. Mass trapping with the insect's pheromone (ethyl 4-methyloctanoate or E 4-MO) as an attractant offers new prospects for control. We describe the results of a trial comparing catches obtained with different dispensers in an oil palm plantation (in North Sumatra, Indonesia). The trial covered 163 ha and took place over 15 weeks. Total catches over 14 weeks (week 2 was not considered due to trap thefts) amounted to 11,482 insects (33% males and 67% females). The higher the pheromone dose, the greater were the catches. There was a very good linear relation between log (dose) and the catches: figure 1. Given the current cost of E 4-MO, the highest 2 doses are too expensive to consider their use in plantations. Nevertheless, it can be hoped that synergistic compounds will make it possible to reduce the doses required and consequently the cost price. Mass trapping of 0. rhinoceros with synthetic attractants is a very promising control method to reduce pest populations and prevent damage in the early years after planting.
Classification Agris : H10 - Ravageurs des plantes
Auteurs et affiliations
- Purba Rolettha Y., IOPRI (IDN)
- Desmier De Chenon Roch, CIRAD-CP-PALMIER (IDN)
- Prawirosukarto Sudharto, IOPRI (IDN)
- Morin Jean-Paul, CIRAD-CP-COCOTIER (FRA)
- Rochat Didier, INRA (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/475672/)
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