초록 |
Mating disruption dispensers have increasingly used to effectively prevent the population growth of larvae of Grapholita Molesta (GM) insects by paraffin wax type, of which the duration of pheromone release is relatively short in field applications. Ester waxes such as bees, japan, and carnauba waxes were studied as dispenser materials, focusing on the pheromone release pattern. The solubility of GM pheromone into ester waxes, bee and japan wax was comparable in DSC analysis, while it is not soluble in paraffin wax and degraded in carnauba wax. Mixture of japan wax containing 5% GM pheromone showed the significant reduction of crystalline state observed in x-ray diffraction. The head-space analysis and release test of GM pheromone in bee and japan wax conducted in an incubator at 30℃ resulted in a zero-order release rate of GM pheromone for a long period of time, enough to release sustainably of GM pheromone. |