| In order to understand the occurrence pattern of Fenusella taianensis Xiao & Zhou in the Wuwei area and to efficiently use sticky insect boards for adult trapping and monitoring, we selected two fixed monitoring points with different altitudes to research their life history and population dynamics through a combination of field cocoon digging, indoor observation, and field investigation. Nine different colored sticky insect plates were selected for trapping adults, as well as the different hanging methods of yellow ones were compared. The results showed that: (1) Fenusella taianensis occurred one generation per year in the Wuwei area, with adult insects first appeared in early to mid - April and finally reached the end of April or early May. The peak period of occurrence was short and concentrated, and the eclosion period varies slightly due to differences in altitude. (2) All 9 colors of sticky insect boards were effective in attracting Fenusella taianensis adults, with the yellow green sticky insect board had the best trapping effect, with trapping amounts of 2 951.33 and 4 450.33 insects per board, respectively. The yellow and green sticky insect boards were second, both above 2 000 insects per board. The impact of all color of sticky insect board on natural enemies was relatively small, with the highest number of natural enemies attracted being only 10.33 insects per board. (3) The number of adult insects attracted in the south direction was the highest, all above 1 500 per board, significantly higher than in the north, west, and east directions. The number of adult insects in the north direction was the lowest, at 300~400 per board. The highest number of adult insects were attracted at a distance of 100 cm from the ground, with 1 273.33 per board and 1 591.33 per board, respectively. The second highest number was at a height of 150 cm, and there was no significant difference between the two. The lowest number of adult insects were attracted at a distance of 0 cm. The closer the sticky insect board was to the edge of the forest, the more adult of Fenusella taianensis were attracted, with the highest number at the edge of the forest, at 1 527.00 and 1 878.33 per board, respectively. The lowest number of adult insects was at 40 meters from the edge of the forest, all below 200 per board. This result has guiding significance for the green prevention and control of Fenusella taianensis adults. |
