Reproduction of Nesidiocoris tenuis (Reuter) on Sesame

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  • Nakaishi Kazuhide
    Kochi Prefectural Agricultural Technology Research Center Laboratory of Applied Entomology, Faculty of Agriculture, Kochi University
  • Fukui Yasuhiro
    Aki Agricultural Promotion Center; Aki, Kochi 784–0001, Japan
  • Arakawa Ryo
    Laboratory of Applied Entomology, Faculty of Agriculture, Kochi University

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Other Title
  • ゴマにおけるタバコカスミカメ　Ｎｅｓｉｄｉｏｃｏｒｉｓ　ｔｅｎｕｉｓ（Ｒｅｕｔｅｒ）（カメムシ目：カスミカメムシ科）の繁殖能力
  • ゴマ ニ オケル タバコカスミカメ Nesidiocoris tenuis (Reuter)(カメムシモク:カスミカメムシカ)ノ ハンショク ノウリョク

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Abstract

We found many mirid stink bugs, Nesidiocoris tenuis (Reuter), on sesame plants outdoors, even though there were few prey. This suggests that N. tenuis can be reared on sesame without prey, so we investigated their fecundity on sesame, and on cucumber, tomato, eggplant and bell pepper without prey for comparison. Nesidiocoris tenuis were also reared on sesame with defrosted eggs of the Mediterranean flour moth, Ephestia kuehniella (Zeller). On sesame without moth eggs, the survival rate from egg to adult of N. tenuis was 59.3%, which was significantly higher than on eggplant, but not significantly different from cucumber and sesame with moth eggs. No adult N. tenuis emerged on tomato and bell pepper. On sesame without moth eggs, the developmental period from egg to adult of N. tenuis was 29.0 days, which was significantly shorter than on cucumber and eggplant, but significantly longer than on sesame with moth eggs. On sesame without moth eggs, the male and female adult longevity of N. tenuis was 38.4 days and 27.7 days, respectively, which was significantly longer than on other plants, but not significantly different from sesame with moth eggs. Nesidiocoris tenuis laid 63.6 eggs on sesame without moth eggs, and a significantly greater number of 166.4 eggs on sesame with moth eggs, but a significantly lower number of 4 eggs or fewer on cucumber, tomato, eggplant and bell pepper. The intrinsic rate of the natural increase and the intrinsic rate for 30 days of N. tenuis reared on sesame with moth eggs was 0.0865 and 13.4, respectively, while the intrinsic rate of natural increase and the intrinsic rate for 30 days of N. tenuis reared on sesame without moth eggs was 0.0465 and 4.0, respectively, which was lower than on sesame with moth eggs. These results suggest that N. tenuis can be reared only on sesame and also that sesame can be an insectary plant for N. tenuis.

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