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Erin
My potato plants are curling both on the leaves and on the stalk, they are dwalfed in size??What causes this?

It happened last year and I replaced my soil with good quality red dirt, the soil seems healthy lots of worms but this problem keeps occuring, any help would be much appreciatted.

Submitted: 11:40AM, 21 Sep 2012
Answer: Hi Erin,
There is a viral disease called potato mosaic which causes the leaves to mottle and crinkle. Sometimes the leaf veins are blackened. Have you noticed any aphids or white fly on the leaves as these insects may spread the virus.

Did you buy seed potatoes? They should be certified to ensure they do not have a virus leaf roll. This virus is carried from plant to plant by green peach aphids. The stems are thickened wherever the leaves join on, and tubers will probably be small and produce long thin sprouts.

Treat any aphids with Nature’s Way Insect and Mite Spray which contains natrasoap.

Category: Diseases
Answered: 09:05AM, 24 Sep 2012

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