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Potential management of fungal potato diseases using inorganic salts.

Literature survey which demonstrates that inorganic salts have potential to partially replace some of the synthetic fungicide used on potato crops in the UK.

Year of Publication2010

Proposed restrictions on synthetic fungicide use illustrate the importance of intensifying research into and development of effective alternative methods of disease control. Our literature survey demonstrated that inorganic salts have potential to partially replace some of the synthetic fungicide used on potato (Solanum tuberosum L.) crops in the UK. Foliar sprays (preventive) or dip treatments (preventive and curative) of inorganic salts (phosphites, bicarbonates, chlorides, phosphates or carbonates) were found to significantly reduce the severity of foliar and tuber late blight (Phytophthora infestans), silver scurf (Helminthosporium solani), dry rot (Fusarium sambucinum) and pink rot (Phytophthora erythroseptica). Tuber late blight was the most effectively controlled disease with 91% decrease in severity following foliar application of a phosphite salts product. Therefore, the use of inorganic salts in potato integrated disease management strategies may be useful and merits further investigation. Regulatory innovation will be needed to register such compounds as biopesticides in the UK.

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Supporting the development of the national rural economy.

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