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오늘 본 자료
Ambrosia beetle body size is differentially correlated to flight ability by species on a flight mill
Meeja Seo,Jum Rae Cho,Jeong Hwan Kim,Bo Yoon Seo,Gwan Seok Lee,Chang Woo Ji,Ji Eun Kim,Lukasz L. Stelinski 한국응용곤충학회 2019 한국응용곤충학회 학술대회논문집 Vol.2019 No.04
Three ambrosia beetle species, Xyleborus glabratus, Monarthrum mali, and Euwallacea fornicatus belong to subfamily, Scolytinae, showing similar morphology and body size, but their flight capability and patterns showed species-specific. Body length of Xyleborus glabratus and Monarthrum mali was negatively correlated with flight capabilities; shorter beetles performed longer average flights, longer single flights, total flight distance, and total flight time. Elytral length also was negatively correlated with flight distance in X. glabratus and M. mali. Conversely, only average flight time of E. fornicatus was positively correlated with body length, pronotal width, and elytral length. Body length had no effect on the flight velocity of any of the three beetle species examined. Therefore, our results indicate that body size characteristics of ambrosia beetles differentially influence on their dispersal by species.
Effect of Cold Storage on quality of Geocoris pallidipennis and Micromus angulatus
Meeja Seo,Jeong Hwan Kim,Bo Yoon Seo,Kwang Ho Kim,Gwan Seok Lee,Chang Woo Ji,Ji Eun Kim,Jum Rae Cho 한국응용곤충학회 2019 한국응용곤충학회 학술대회논문집 Vol.2019 No.04
It was available to store both nymphs and adults of Geocoris pallidipennis at 5℃ for 3 weeks without negative effects on their survival, fecundity, and Bamisia tabaci nymph predation. Up to 140 days, it was also possible to store Micromus angulatus adults at low temperature, showing approximately 50% cumulative survival rate, but over 2 week cold storage was not suitable for their fecundity. With the increase of cold storage duration, the aphid predation by M. angulatus decreased, but it could be possible to cold store until 5 weeks without a significant effect on their aphid predation. Thus, short term cold storage of G. pallidipennis and M. angulatus could be useful for inundative biological control.
Ladybird beetle trails affect population growth of the brown citrus aphid, Toxoptera citricida
Meeja Seo,Jum Rae Cho,Bo Yoon Seo,Kwang Ho Kim,Jeong Hwan Kim,Chang Woo Ji,Ji Eun Kim,Lukasz L. Stelinski 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10
Trails of the convergence ladybird negatively affected the brown citrus aphid population. On 3 days after treatment of ladybird trails, the population growth rate of the brown citrus aphid on treatment and control swingle flushes in the test tube were –0.1848 and –0.0385, respectively. In pot experiments, there were no significant differences in population growth rates between treatment and control swingle plants on 3 and 7 days after treatment of ladybird trails. But, on 10 days after treatment, each population growth rate was -0.0415 and 0.1125, respectively so there was significantly different statistically. Thus, our result support the potential practical application of ladybird trails as an effective control agent for managing of herbivorous insect pests in citrus groves.