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 13

1965-01-10 発行

オーソサイド(キャプタン剤)のキュウリ立枯病に対する防除効果

On the Control of Cucumber Damping-off with Orthocide (Captan)

Yamamoto, Masaki

Tatsuyama, Kadzunori

Kato, Hiroshi

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The occurence of the damping-off of cucumber seedings caused by Pellicularia filamentosa(Pat.) Rogers(Rhizoctonia solani, Culture Type IIIa) was protected considerably by using Orthocide (Captan) as a soil fungicide.
No injurious effeet was recognized by soaking the seeds of cucumber in Orthocide even in more concentrated suspension than in the ordinary usage.
Twice applications of Orthocide to the cucumber seeds before and after the sowing were more effective than only once application before the sowing.
Complete control was not expected in sandy soil but the intensifying effects were recognized in the soil containing bentnite. The addition of Tokuase as surface activator increased the fungi cidal effect against the damping off of cucumbers.

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