Thermal effect on the development and reproduction of an indigenous mirid bug, Pilophorus typicus Distant (Heteroptera: Miridae), a potential biological control agent in Japan
Hiroshi Nishikawa, Takuji Shimada, Kengo Nakahira, Ryo Arakawa
Applied Entomology and Zoology 45 (2) 313-318 -
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Molecular identification of genotypes of Pilophorus typicus (Heteroptera: Miridae) in Japan using PCR-RFLP analysis of mitochondrial DNA.
Katsura Ito, Hiroshi Nishikawa, Takuji Shimada, Kohei Ogawa, Yukio Minamiya, Hiroshi Hayakawa, Tatsuya Fukuda, Ryo Arakawa
Environment Control in Biology 48 191-195 2010-
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Side effects of vegetable pesticides on a predatory mirid bug, Pilophorus typicus Distant (Heteroptera: Miridae)
Nakahira Kengo, Ryoya Kashitani, Masafumi Tomoda, Rika Kodama, Katsura Ito, Satoshi Yamanaka, Mitsutoshi Momoshita, Ryo Arakawa
Applied Entomology and Zoology 45 (2) 239-243 -
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Functional response of Chrysoperla nipponensis and C. carnea (Neuroptera: Chrysopidae) to the cotton aphid Aphis gossypii Glover (Homoptera: Aphididae) under laboratory conditions.
Andres Felipe Montoya-Alvarez, Katsura Ito, Kengo Nakahira, Ryo Arakawa
Applied Entomology and Zoology 45 (1) 201-206 2010-
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First Record of Spalangia gemina Boucek and S. nigroaenea Curtis (Hymenoptera: Pteromalidae) in Japan
Kohei Ogawa and Ryo Arakawa
Japanese Journal of Systematic Entomology 15 (1) 277-285 2009-
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高知県内の天敵利用果菜類栽培施設で発生した土着性カブリダニ種
日本ダニ学会誌 17 (1) 23-38 2008-
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高知県内の果菜類栽培施設で発生する数種土着カブリダニのミナミキイロアザミウマに対する捕食能力
古味一洋・荒川良
日本ダニ学会誌 17 (1) 29-35 2008-
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Defensive functions of the trash-package of a green lacewing, Mallada desjardinsi (Neuroptera: Chrysopidae), against a ladybird, Harmonia axyridis (Coleoptera: Coccinellidae.
Kengo Nakahira and Ryo Arakawa
Applied Entomology and Zoology 41 (1) 111-115 2006-
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Development and reproduction of an exotic pest mealybug, Phenacoccus solani (Homoptera: Pseudococcidae) at three constant temperatures.
Kengo Nakahira and Ryo Arakawa
Applied Entomology and Zoology 41 (4) 573-575 2006-
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高知県におけるオオミノガとオオミノガヤドリバエの寄主-寄生バエ関係
荒川 良・澤田定広・森川卓也
昆虫と自然 41 (2) 15-19 2006-
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Effect of photoperiod on the development and diapause of the green lacewing Chrysopa pallens (Neuroptera: Chrysopidae).
Kengo Nakahira and Ryo Arakawa
Entomological Science 8 (2) 133-135 2005-
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Release effect of an egg parasitoid, Gryon philippinense (Ashmead) (Hymenoptera: Scelionidae), for suppression of the winter cherry bug, Acanthocoris sordidus Thunberg (Hemiptera: Coreidae), in greenhouse.
Anabelle O. Dasilao and Ryo Arakawa
Applied Entomology and Zoology 40 (3) 387-390 2005-
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Effect of temperature on development, survival, and adult body size of two green lacewings, Mallada desjardinsi and Chrysopa nipponensis (Neuroptera: Chrysopidae).
Kengo Nakahira and Ryo Arakawa
Applied Entomology and Zoology 40 (4) 615-620 2005-
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Reproductive capacity and host handling behavior of Gryon philippinense (Ashmead) (Hymenoptera: Scelionidae), a solitary egg parasitoid of the winter cherry bug, Acanthocoris sordidus Thunberg (Hemiptera: Coreida).
Anabelle O. Dasilao and Ryo Arakawa
Applied Entomology and Zoology 39 (2) 263-269 2004-
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Effect of host species on the body size of Trissolcus mitsukurii (Hymenoptera: Scelionidae), a solitary egg parasitoid of stink bugs.
Ryo Arakawa, Mirei Miura, Maki Fujita
Applied Entomology and Zoology 39 (1) 177-181 2004-
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オオミノガに対するオオミノガヤドリバエの高知県における寄生状況
澤田定広,荒川 良
昆虫(ニューシリーズ) 5 (4) 111-119 2002.-
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Effect of temperature on development of three Trissolcus spp. (Hymenoptera: Scelionidae), egg parasotoids of the brown marmorated stink bag, Halyomorpha halys (Hemiptera: Pentatomidae)
Ryo Arakawa, Yuki Namura
Entomological Science 5 (2) 215-218 2002-
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野菜をコナジラミからまもるツヤコバチ
荒川 良
遺伝 51 (9) 28-32 1997-
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Attack on the parasitized host by a primary solitary parasitoid, Encarsia formosa (Hymenoptera: Aphelinidae): the second female pierces, with her ovipisitor, the egg laid by the first one.
Ryo Arakawa
Applied Entomology and Zoology 22 (4) 644-645 1987-
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Reproductive capacity and amount of host-feeding of Encarsia formosa Gahan (Hymenoptera: Aphelinidae).
Ryo Arakawa
Zeitshrift fur angewandte Entomologie 93 175-182 1982-
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Simultaneous occurrence of two seasonal forms of Neope niphonica Butler (Lepidoptera, Satyridae) at Ebino plateau in Miyazaki, Kyushu, Japan.
Ryo Arakawa
Kontyu 49 (1) 116-124 1981-
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