Study mission to Papua New Guinea to improve the control of coconut pests by mass trapping from 19/11 to 6/12/2000

Morin Jean-Paul. 2001. Study mission to Papua New Guinea to improve the control of coconut pests by mass trapping from 19/11 to 6/12/2000. Montpellier : CIRAD-CP, 16 p. N° de rapport : CP_SIC 1330

Résumé : Up to recent years, the only way of controlling Scapanes was to pick the adults off coconut palms by hand. Discovery of the pheromone, enabling trapping, offers prospects for reducing populations and decreasing attacks. Trapping still needs to be optimized with a more efficient synergist. Ongoing trials will make it possible to increase the attractiveness of a piece of sugar cane used as the synergist. Moreover, work on an entirely synthetic synergist is continuing: a major trial has been set up to assess 16 new mixtures from compounds identified in the effluvia from sugar cane. A new type of trap is being studied for easier implementation of trapping over a long period. Trapping efficacy is now being studied in young coconut plantings, analysing the catches in the traps and the number of insects collected from the coconut palms. Additionally, coconut plantings with high-yielding planting material (hybrids) have been set up in recent months and they will be protected by traps installed on the outer periphery. The condition of the plants will be monitored on a fortnightly basis. As the project is nearing its end, it is important to carry out synergist tests as quickly as possible, so as to have their results for new proposals. For the trials in young plantings, steps will have to be taken to continue trapping and observations over several years (availability of traps and pheromone, planting inspections and insect collection). A training course for a CCRI researcher working on the project is scheduled from mid-April to mid-June, and will concentrate on identifying the pheromone gland in the Scapanes male. Arrangements will have to be made for all the field observations to continue normally during his absence. Advantage will be taken of the visit by the CCRI researcher to analyse the results of ongoing trials and prepare the talks to be presented at the end-of-project seminar. Indeed, the project will end on 30th September 2001 and a seminar is due to be held at Marihat (IOPRI) in Indonesia in September. More precise information will be provided in the coming weeks.

Mots-clés géographiques Agrovoc : Papouasie-Nouvelle-Guinée

Classification Agris : H10 - Ravageurs des plantes

Auteurs et affiliations

• Morin Jean-Paul, CIRAD-CP-COCOTIER (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/481283/)

Métriques

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