赤眼卵蜂在玉米田之族群消長和遷移
Other Title
Population Fluctuations and Dispersal of Trichogramma spp. in Corn Fields
Journal
中華昆蟲
Journal Volume
13
Journal Issue
4
Pages
305-318
Date Issued
1993-12
Author(s)
陳健忠
Chien-Chung Chen
Abstract
在臺灣省農業試驗所霧峰農場玉米田內設置黃色粘板和亞洲玉米螟(Ostrinia furnacalis)性費洛蒙誘蟲盒，用以調查玉米田赤眼卵蜂族群之消長和遷移，並調查寄主玉米螟及其卵塊之發生和玉米葉面積變化情形，結果顯示赤眼卵蜂和玉米螟卵塊族群間之同時性(synchrony)之相關程度甚低。玉米螟在玉米播種後4-9週進入玉米田產卵。赤眼卵蜂在玉米種植全期均有遷、遷入現象，且雌蜂占大多數。捕獲之赤眼卵蜂有玉米螟赤眼卵蜂(Trichogramma ostriniae)、螟黃赤眼卵蜂 (T. chilonis)和一未定名新種。雖然風向以西北風為主，但赤眼卵蜂遷入之方向以東向最多。遷出時為四散移出或朝可能有寄主存在的鄰田移去。在玉米田內的活動則以逆風向活動為主。
Yellow-sticky traps and sex pheromone traps for Asian corn borer (Ostrinia furnacalis) were set up in corn fields at the experimental farm of Taiwan Agricultural Research Institute, Wufeng, Taichung to investigate the population fluctuations and dispersal of Trichogramma spp., as well as the occurrence of borer moths and their egg masses. Leaf areas of corn plants were recorded throughout the growing season. The synchronizing relationship between Trichogramma wasps and borer egg masses appeared very weak. Borer moths came to the experiment field from other fields and laid eggs during the weeks 4 to 9. T. ostriniae and T. chilonis were found continuously moving into and out of the corn field during the season, and female wasps were found to be in the majority. Besides T. ostriniae and T. chilonis, several of an unidentified new Trichogramma sp. were also captured. Most of the wasps entered from the east when northwest wind was prevailing. There were no significant differences in the numbers of the emigrating wasps in different directions. However, they might move toward the adjacent fields where their hosts likely existed. Movement of the wasps within a corn field was found basically against the wind.
Subjects
赤眼卵蜂
亞洲玉米螟
族群消長
遷移
trichogramma spp.
asian corn borer
population fluctuations
dispersal
Publisher
中華昆蟲學會
Type
journal article