white fungus on Snow pea plants - Knowledgebase Question

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Question by floresp3
May 26, 1999
Hi, I am stationed overseas and a novice gardner. I am growing Snow Pea's in containers and they were doing very well! Just recently I noticed a white mildew type fungus on the leaves and the plant seems to be wilting quite badly. Could you tell me what it is and recommend a product either organic or chemical to control it, thanks Pierre


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Answer from NGA
May 26, 1999

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It is probably powdery mildew fungus. This disease can be a problem on peas and certain other vegetables. One organic option is to spray the plants with a labeled product containing neem oil (not just the ingredient azadirachtin, but the oil of neem). Another option is to use a labeled product containing either potassium bicarbonate or sodium bicarbonate (baking soda).

The following web site contains a great deal of information on the bicarbonate sprays including source of these products:
http://www.attra.org/attra-pub...

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