愛媛県果樹試験場 | 九州大学大学院生物資源科学研究科生物資源開発管理学専攻生物的防除学講座天敵昆虫学研究室
Laboratory of Insect Natural Enemies, Division of Biological Control, Department of Applied Genetics and Pest Management, Graduate School of Bioenvironmental Science, Kyushu University | Ehime Prefectual Fruit Tree Experiment Station
九州大学大学院農学研究院生物資源開発管理學部門生物的防除学講座天敵昆虫学研究室
Laboratory of Insect Natural Enemies, Division of Biological Control, Department of Applied Genetics and Pest Management, Faculty of Agriculture, Kyushu University
Host searching efficiency of female adults of Aphytis yanonensis and Coccobius fulvus, introduced parasitoids of Unaspis yanonensis, was investigated in the laboratory, using mandarin orange (Citrus unshiu) leaf patches (4×4 cm) with host density of 1, 2, 4 and 8 per patch. We recorded host searching and oviposition behavior of individual female parasitoids until they left the patch. In the higher host density A. yanonensis females attacked more hosts than A. fulvus females when comparing the number of host attacked for 30 or 60 minutes after the patch entrance. This was because of the longer oviposition time per host atlack in C. fulvus than in A, yanonensis. However, patch resident time of C. fulvus was longer than that of A. yanonensis, and no significant difference was detected in the number of hosts attacked and parasitized when compared them per patch visit. It was suggested that the host searching efficiency per unit time was higher in A. yanonensis but that the host searching efficiency per patch visit was not different because C. fulvus stayed the patch longer.
Mendeley出力
