小菜蛾性誘劑之田間誘效試驗　Ⅱ　性誘劑對小菜蛾之防治與發生預測

Field Trapping of the Diamondback Moth, Plutella xylostella by Using Synthetic Sex Pheromone Ⅱ. The Effective Control and Population Monitoring of Sex Pheromone of Diamondback Moth

錢景秦(Ching-Chin Chien) ； 邱瑞珍(Shui-Chen Chiu)

《中華農業研究》 36卷1期 (1987/03) Pp. 111-117

https://doi.org/10.29951/JARC.198703.0011

摘要

爲測定小菜蛾性誘劑在本省田間之誘雄實效，乃在臺中萬豐本所農場進行試驗。得知性誘劑(Z11-16: Ald+Z11-16: Ac+Z11-16: OH, 1: 1: 002)劑量爲50或100μg，誘蟲盒間隔距離爲2.2或4m時，對小菜蛾族羣均無抑制效果；使用劑量爲50μg，誘蟲盒間隔距離爲11m，其1週所誘得雄蛾數能反映其使用前1週，或預測誘集後1及2週甘藍上小菜蛾第三與四齡之幼蟲數，其r值分別爲0855(n=21)，0.662(n=16)及0.578(n=14)。又該劑對寄生小菜蛾幼蟲之小繭蜂Apanteles plutellae無引誘力。

並列摘要

Studies were conducted in cabbage field of the Taiwan Agricultural Research Institute at Wufeng, Taichung during 1980-1982, to determine the potential synthetic sex pheromone trapping for controlling and monitoring diamondback moth (DBM), Plutella xylostella.
The results showed that the sex pheromone lure (Z11-16: Ald+Z11-16: Ac+Z11-16: OH, 1: 1: 0.02) with 50 or l00ug per trap set up a distance as dense as 2.2m (25 traps/l00m^2) or 4m (15 traps/240m^2) apart, were not able to control the subsequent populations of DBM occurred in the field. However, the total number of male moths cought weekly by the traps (50ug/trap) set at urn apart (1 trap/l00m^2) showed the correlation with the subsequent populations of the 3rd-and 4 th-instar larvae of DBM occurring 2-week later.
The sex pheromone lure did not attract the braconid, Apanteles plutellae, a larval parasitoid of DBM.