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Bombiculture: A fascinating insect industry for crop pollination in Korea
권용정 한국곤충학회 2008 Entomological Research Vol.38 No.-
The Food and Agriculture Organization of the United Nations has recently taken on the leading roles internationally in the conservation and sustainable use of insect pollinators, which initiated the artificial rearing project of a European bumblebee of Bombus terrestris in Korea since 1999 (project number FAO/TCP/ROK/8921). The main purpose of the present project has focused on unveiling the production technology of B. terrestris for environmentally-friendly crop pollination. Currently, the new establishment of a mass rearing system can be facilitated with compatibility commercially, and is expected to supply the domestic demand with reduced costs for the crop pollination. Therefore, bombiculture is a new technology in the entomological industry, utilizing one of the wild insect resources previously overlooked. This technology shows how the wild insects can contribute to our welfare as one of the useful biological resources.
권용정,조영재,서상재 한국곤충학회 2009 Entomological Research Vol.39 No.1
Orthotylus pallen (Mastumura, 1911) is recorded for the first time from Korea and is diagnosed. An image of its dorsal habitus as well as illustrations of the male and female genitalia are provided. A key to and checklist of Korean Orthotylus species are given.
Taxonomy of the genus Phytomyza Fallén (Diptera: Agromyzidae) in Korea
권용정,김진서,서상재 한국곤충학회 2009 Entomological Research Vol.39 No.3
In the present study, six Korean Phytomyza species are revised taxonomically. Of these, three species are newly recorded in the Korean fauna: P. angelicae kibunensis, P. arnaudi and P. sedicola. A key to the Korean species, host plants and distributional data for each species are given. The detailed redescriptions and illustrations with their diagnostic characters are also provided.
권용정,Md Ruhul AMIN,Nang Soi Lao INN 한국곤충학회 2012 Entomological Research Vol.42 No.2
Melittobia acasta (Walker) are microhymenopteran ectoparasitoids of the pupae and prepupae of the commercially‐used pollinator bumblebee species Bombus terrestris L. The female parasitoids puncture the host cuticle with their sting and feed oozing hemolymph. This study shows that M. acasta parasitize 100% pupae and 84% prepupae of B. terrestris but are ineffective on the larvae of the bees. The female parasitoids lay a significantly higher number of eggs on pupae (67.7 ± 16.2 female−1) compared to prepupae (20.5 ± 14.5 female−1). The parasitoids differ in their choice for oviposition sites and fecundity on different locations of B. terrestris pupae, and they show most preference for oviposition (32%) as well as fecundity (34.9 ± 15.1 female−1) on the petiole of the host. Larvae of the parasitoids overwinter at low temperatures but larval overwintering duration and post‐diapause rearing on original or new hosts do not affect their pupation and adult emergence. Larvae have a higher percentage of pupation (88.0–94.4%) and adult emergence (84.4–92.9%) both on the original and the new host, thus indicate that the parasitoids are highly capable of reproduction in B. terrestris colonies.
Morphological features, development and reproduction of Melittobia acasta on Bombus terrestris
권용정,Md Ruhul AMIN,Nang Soi Lao INN 한국곤충학회 2012 Entomological Research Vol.42 No.2
Morphological features, development and reproduction behavior of the parasite Melittobia acasta (Walker) were studied when reared on the pupae of the bumblebee Bombus terrestris L. in the laboratory under 23°C, 50% relative humidity and 12 h light : 12 h dark conditions. The parasites laid transparent white and elongated eggs. Newly hatched larval size and shape were very similar to eggs but they were identified by their body segments. Larvae increased their body size through moulting and transformed into a vermiform shape. Male pupae were shiny brown with dots. The female pupae were distinguished by their black shiny color, shorter size and the presence of compound eyes. Adult male pupae were dark brown and dwarf‐winged, whereas female pupae were macropterous and brachypterous. Reproduction took place by fertilization and also parthenogenetically. Mean fecundity within 5 days by mated (47.9 ± 30.5 female−1) and virgin (7.4 ± 6.8 female−1) females were statistically different. Mated females laid fertilized eggs that produced adult males or females, whereas virgin females laid unfertilized eggs that produced males. Development durations of the virgin female originated eggs, larvae, pupae and adults were statistically identical with those of mated females. The parasites were female‐biased and foundress number did not affect offspring sex ratio. This study shows that both mated and virgin females of M. acasta can produce many offspring on B. terrestris pupae within a short period, indicating that they are dangerous parasites of the bumblebee in a mass rearing system.