Disease Management for Organic Cucumber

News source: Hualien District Agricultural Improvement Station, Taiwan, ROC
For further information,
Email: cheminchen@mail.hdais.gov.tw, 2003-05-01

Organic Farming System for Cucumber

To establish an organic farming system for cucumber, experiments were conducted in 2001-2002.

Ferrous Chloride to Prevent Foliar Diseases

Plant disease resistance inducers, such as ferrous chloride, cinnamon oil and neem oil, were evaluated in the field for foliar diseases on cucumber. Results indicated that ferrous chloride (5,000 ppm) was effective on downy mildew and powdery mildew diseases.

Cinnamon Oil and Other Treatments to Prevent Powdery Mildew

Meanwhile, cinnamon oil (800 ppm) had preventive effect on powdery mildew. In another field test, 48% copper salt + fatty acid + rosin acid and 29% riboflavin + DL-methionine + copper sulfate also had preventive effects on downy mildew in cucumber.

Ammended Compost against Phytphthera Blight

Compost made from chicken manure and rice husk (CR) was used as basic compost and its effect was tested on Phytophthora blight on cucumber seedlings. Results showed that CR amended with neem cake or oyster powder significantly reduced the incidence of Phytophthora blight.

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