Insect populations are controlled by treating an immature form of the insect with a novel compound possessing juvenile hormone-like activity. Such a compound is one having the formula ##EQU1## wherein Y is thienyl, phenyl or substituted phenyl. For example, 9-(3,4-methylenedioxyphenyl)-2,6-dimethyl-2,6-nonadiene exhibits very good activity.
昆虫种群受到控制,方法是用一种具有类似幼虫激素活性的新化合物处理昆虫的幼虫形式。这样的化合物具有以下结构式:Y为
噻吩基、苯基或取代苯基。例如,9-(3,4-亚甲二氧基苯基)-2,6-二甲基-
2,6-辛二烯表现出非常好的活性。