ツマグロヨコバイ成虫の活動と温度および風力との関係

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タイトル別名
  • Effects of Temperature and Wind on the Activity of Green Rice Leafhopper Adults, <i>Nephotettix cincticeps</i> UHLER (Hemiptera: Deltocephalidae)
  • ツマグロヨコバイ セイチュウ ノ カツドウ ト オンド オヨビ フウリョク ト ノ カンケイ

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Experiments were carried out at day-time in the laboratory under natural light conditions from 1958 to 1960 and in 1969. The minimum temperatures to evoke the first trembling, rising, the first walking, the first jumping, continuous jumping, abnormal walking, knock down and death by heat were 0.8-2.4°C, 1.4-2.1°C, 2.5-4.0°C, 8.6-9.7°C, 11.7-13.1°C, 39.2-40.8°C, 41.5-42.6°C and 42.3-42.9°C respectively for female adults. Little difference was found between sexes in their reaction to temperatures. In the temperature range between 9°C to 30°C, the wind velocity which inhibits the jumping of leafhoppers against wind, was found to be parallel to the activity of leafhoppers due to temperatures. The effect of wind velocify increased when above 1m per second and was very marked above 2.6-3.0m per second.

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