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- Title
共生細菌を保持したホソハリカメムシ(カメムシ目:ヘリカメムシ科)の発育零点と有効積算温度から推定した年間世代数.
- Authors
小西怜生; 重盛俊弥; 田村瑠菜; 伊藤英臣; 菊池義智; 樋口博也
- Abstract
Cletus punctiger (Dallas) (Heteroptera: Coreidae) is widely distributed in Japan. This insect is a serious pest that sucks developing rice kernels and causes pecky rice. Adults collected in environmental fields, orally acquire symbiotic bacteria belonging to the genus Burkholderia from environmental soil in the nymphal stage and commonly possess the symbionts in their gut crypts. Therefore, we examined whether nymphs reared with food, water and soil collected from their natural habitat acquire the symbionts. Rearing experiments with soil demonstrated that nymphs ac-quire the symbionts. We then investigated the developmental zeros and effective accumulative temperatures using rearing experiments with food, water, and soil. The developmental zeros were 14.3°C in the egg stage, and 14.0°C and 14.1°C from the egg to the nymph stage in the females and males, respectively, and 12.8°C in the preoviposition period. The effective accumulative temperatures were 84.0 day-degrees in the egg stage, 344.8 day-degrees from the egg to the nymph stage in both females and males, and 131.6 day-degrees in the preoviposition period. Based on the data above, the number of annual generations of C. punctiger in Shiga Prefecture was estimated to be three at the most. The new adults in the third generation are considered diapause adults that move to hibernating sites.
- Subjects
JAPAN; SOIL moisture; HEMIPTERA; DIAPAUSE; BURKHOLDERIA; DATABASES; OVIPARITY
- Publication
Japanese Journal of Applied Entomology & Zoology, 2020, Vol 64, Issue 3, p125
- ISSN
0021-4914
- Publication type
Article
- DOI
10.1303/jjaez.2020.125