島根農科大学研究報告

Shimane Agricultural College

ISSN:0559-8311

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島根農科大学研究報告 10

1962-03-31 発行

ニカメイガ幼虫の黄きょう病菌による死亡と温度の関係

On the relation between the mortality of the rice-stem borer (Chilo suppressalis WALKER) from the yellow muscardine disease and the environmental temperature

Chikaki, Hideya

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The psesent experiments were made in order to clarify on the relation between the mortaality of Chilo suppressalis WALKER by Isaria farinosa (DICKS) FR. and the environmental temperature.
The results obtained are as follows :
1. The life of larvae suffering from the disease is shorter at higher temperatures.
2. The variation curve of the resistance of larvae to the disease is almost normal.
3. The variation of the resistance of larvae is wider at lower temperatures.

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d0020010n009.pdf 620 KB

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