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Distribution of Metcalfa pruinosa (Hemiptera: Flatidae) in Chungnam proince and host preference of its nymphs
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- URLhttps://db.koreascholar.com/Article/Detail/364586
The amount of Metcalfa pruinosa was higher in Cheonan and Geumsan, which are adjacent to Chungbuk province and in Taean, Dangjin, Asan, Cheonan adjacent to Gyeonggi province. These results demonstrate that M. pruinosa has spread from Chungbuk and Gyeonggi to Chungnam.
As a result of investigating the spatial distribution characteristics of M. pruinosa eggs using SADIE, in 2017, the aggregation index(Ia) of 1.406 was close to the concentration distribution but in 2018, Ia of 1.102 was close to the random distribution. These results confirm that pests have spread throughout Chungnam.
As a result of investigating the hosts that M. pruinosa larvae preferring, the results showed that most host preference with 38 species and 30 species in Asteraceae and Rosaceae, respectively. When the degree of occurrence was divided into four stages, the plants with the highest occurrence degree of 4 were Aralia elata, Styrax japonica, Ziziphus jujuba, Prunus cerasifera and Robinia pseudoacacia, in woody plant, and Rhododendron indicum, Rumex japonicus, Helianthus annuus, Humulus japonicus, and Cirsium japonicum in herbaceous plant. These plants can be used as a chemical substance that can attract larvae and adults before the laying of eggs. Therefore, we plan to utilize these plants to select incentives by studying behavioral responses of M. pruinosa.
