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    • 27. 发明授权
    • Method for the preparation of a sustained-release dispenser of sex
pheromone of pest insects
    • 制备害虫性别信息素持续释放分配器的方法
    • US5503839A
    • 1996-04-02
    • US191611
    • 1994-02-04
    • Ryuichi SaguchiKinya OgawaAkira Yamamoto
    • Ryuichi SaguchiKinya OgawaAkira Yamamoto
    • A01N25/18A01N25/28
    • A01N25/18
    • An improved method is proposed for the preparation of a sex pheromone dispenser used in the elimination of pest insects from the field by the disruption of mating of the insects by distributing sustained-release dispensers containing the sex pheromone compound of the insect over the field. According to the invention, pheromone dispensers made from a polyolefin-based resin and filled with the liquid pheromone are subjected, prior to distribution over the field at a relatively low temperature in early spring, to a pretreatment of keeping them at 35.degree. to 60.degree. C. until the dispenser walls of the polyolefin resin absorb 2 to 10% by weight of the pheromone. When the dispensers after the pre-treatment are distributed, a relatively high rate of pheromone release can be obtained at the low temperature as compared with untreated dispensers so that the rate of pheromone release can be relatively uniform over the whole period of the season in which the pheromone dispensers are kept over the field.
    • 提出了一种改进的方法,用于制备用于通过在场上分发含有昆虫的性信息素化合物的缓释分配器来消灭来自野外的害虫的性信息素分配器。 根据本发明,由聚烯烃类树脂制成的填充有液体信息素的信息素分配器在分散在早春相对较低温度的田间之前进行预处理,将其保持在35〜60℃ C.直到聚烯烃树脂的分配器壁吸收信息素的2至10重量%。 当预处理后的分配器分配时,与未处理的分配器相比,在低温下可以获得相对高的信息素释放率,使得信息素释放速率在季节的整个时期内可以相对均匀,其中 信息素分配器保存在现场。
    • 29. 发明授权
    • Sustained-release dispenser of sex pheromone of insects
    • 昆虫性信息素的缓释分配器
    • US4834745A
    • 1989-05-30
    • US29950
    • 1987-03-25
    • Kinya OgawaAkira YamamotoNoboru AibaShigehiro Nagura
    • Kinya OgawaAkira YamamotoNoboru AibaShigehiro Nagura
    • A01M1/02A01N25/18
    • A01N25/18
    • The invention provides a dispenser form for substainedly releasing vapor of a sex pheromone compound of pest insects with an object to control the population of the insects. The invention dispenser is characterized by the features that: the capacity thereof is sufficiently large to contain at least 100 mg of the pheromone; the barrier wall thereof through which the pheromone permeates to be released from the outer surface is made of a polymeric material swellable with the pheromone in an equilibrium swelling of 2-6% by weight at 20.degree. C.; and the outer surface area S thereof given in mm.sup.2 is sufficient to give a ratio S/W, W being the amount of the pheromone contained therein given in mg, in the range from 4 to 11. The rate of pheromone emission from the dispenser is relatively constant at 0.6 mg/day or larger over a long period of time of, for example, 3 months or longer.
    • 本发明提供了一种分配器形式,用于以害虫的性信息素化合物的特征性释放蒸气为目的,以控制昆虫的群体。 本发明分配器的特征在于:其容量足够大以容纳至少100mg信息素; 信息素透过其从外表面释放的阻挡壁由在20℃下以2-6重量%的平衡溶胀的信息素溶胀的聚合物材料制成。 其以mm2表示的外表面积S足以使其中所含的信息素的量的比例S / W,以mg给出,其中以mg计,在4至11的范围内。来自分配器的信息素发射率为 相对恒定,在0.6mg /天或更长的时间内,例如3个月或更长时间。