Shaped distributor sustained emitting a sex pheromone of insects.

摘要

THE FORM OF ADMINISTRATION OF SEX PHEROMONE FOR CONTROLLING POPULATION OF INSECT PESTS IN THE FIELD is modeled from a material polymer, polyethylene EXAMPLE or ethylene-vinyl acetate copolymer, generally in tubular shape, and the tube wall SERVE AS WALL PROTECTION THROUGH WHICH PASSES SEXUAL pheromone compound to be released continuously. A PARTY, OR FOR EXAMPLE 30-90% AREA outer surface of the protective wall is coated with a material compound waterproof coating or difficultly PERMEABLE TO SEXUAL CONTENT PHEROMONE COMPOUND IN SHAPE, SO THE SPEED ISSUANCE OF PHEROMONE OF THE FORM IS TO ENSURE PROPERLY CONTROLLED LIFE COMPLETELY UTIL TO FORM DURING THE DESIRED TIME.