著者

德丸 晋虫 静川 幸明

出版者

日本応用動物昆虫学会

雑誌

日本応用動物昆虫学会誌 (ISSN:00214914)

巻号頁・発行日

vol.67, no.2, pp.53-56, 2023-05-25 (Released:2023-06-16)

参考文献数

24

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To evaluate the dietary antioxidant content of insects, we analyzed the hydrophilic oxygen radical absorbance capacity(H-ORAC) of silkworms(Bombyx mori Linnaeus), and rice grasshoppers(Oxya yezoensis Shiraki), which have been used as edible insects in Japan for many years, and Japanese buff-tip moths, Phalera flavescens(Bremer et Grey), which feed on cherry blossom tree leaves. Among these three insects, the H-ORAC value was highest(7455±185 µmol Trolox eq./100 g FW)in O. yezoensis adults, followed by B. mori pupae(4417.5±270.1), B. mori larvae(4280±189.1), and P. flavescens larvae(4112.5±409.4). The H-ORAC of all three insect species were more than twice those of most fresh vegetables, suggesting high antioxidant potential.

著者

德丸 晋虫 新谷 雅敏 上田 由里子 齊藤 篤

出版者

関西病虫害研究会

雑誌

関西病虫害研究会報 (ISSN:03871002)

巻号頁・発行日

vol.64, pp.122-124, 2022-05-31 (Released:2022-06-01)

参考文献数

13

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The southern green stink bug, Nezara viridula (Linnaeus) (Hemiptera: Pentatomidae), causes damage to various crops such as rice and soybean. The bug species is regarded to overwinter as adults among the foliage of plants such as Cryptomeria japonica (L.f.) D.Don, Juniperus chinensis L. var. chinensis, and Yucca recurvifolia Salisb. However, we found adults of the species in tea fields in southern Kyoto Prefecture where there were none of the above-mentioned plants in the neighborhood in May 2014. This observation led us to suspect that they overwintered in the tea fields. The 2015 to 2018 investigation of the bugs in the tea fields, found that each year they were among the folded cover materials of the tea fields, but not in the foliage of the tea trees. The proportion of surviving adults during winter varied from 22% to 40%, with year-to-year fluctuations. These results imply that the bugs used the cover materials of the tea fields as overwintering sites.