盲蝽科昆虫性信息素研究概况

Sex pheromones for mirid bugs

盲蝽科MIridae昆虫具有重要的经济价值 ,包含许多农林业的重要害虫和一些害虫的重要天敌。目前 ,已确定性信息素化学成分的有 3属 4种盲蝽。这 4种盲蝽性信息素的化学成分分别是显角微刺盲蝽Campylommaverbasci:丁酸丁酯和反 -2 -丁酸丁烯酯 ( 1 6∶1 ) ,Phytocoriscalifornicus:乙酸己酯和反 -2 -乙酸龙脑脂 ( 2∶1 ) ,Phytocorisrelativus:乙酸己酯和反 -2 -丁酸龙脑脂 ( 2∶1 )及Lygocorispabulinus:顺 -9-二十五碳烯和顺 -7-二十五碳烯 ( 5∶1 )。相反 ,草盲蝽属Lygus昆虫的性信息素却难以鉴定。尽管从草盲蝽属昆虫中已分离鉴定 2 0多种化合物 ,但至今没有 1种或 1个组分能成功地产生吸引该属雄虫的生物活性。

Mirid bugs are very economically important insects, many of them are forestry and agricultural pests, and some are the important pest predators in ecosysytems. The sex pheromones produced by female of four mirid species belonging to three genera have been identified, including 16∶1 blend of butyl butyrate and (E) 2 crotyl butyrate for Campylomma verbasci, 2∶1 blend of hexyl acetate and (E) 2 octenyl acetate for Phytocoris californicus, 2∶1 blend of hexyl acetate and (E) 2 octenyl butyrate for Phytocoris relativus, 5∶1 blend of (Z) 9 pentacosene and (Z) 7 pentacosene for Lygocoris pabulinus. In contract, Lygus sex pheromones are difficult to identify. Twenty or more compounds have been identified from Lygus bugs, but no single component or blend of components that have been tested to date have shown any indication of being attractive to male Lygus.