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Jeane Erpenbach
Can I use the left over straw from growing my potatoes for compost even though some of the potatoes were diseased?


Question details

Whenever possible, it's best to avoid adding diseased plant matter to a compost pile. That said, some diseases are less worrisome than others. For example, I don't have any problem adding squash leaves that have been affected by powdery mildew, but I would never consider adding tomato vines affected by late blight.  Another consideration is what type of composting you do.  I don't have any scientific basis for thinking this, but I feel that if you're using hot composting there's a better chance of killing off whatever potentially harmful bacteria you might add through some diseased matter.  My 2 cents.
I agree with Roger.  Composting to 140 f. will kill most harmful bacteria, but I wouldn't put blighted tomato or potato vines into my compost.  Not worth the possibly of spreading blight. Stay natural, David
I agree. Ask your Extension Specialist or vegetable Pathologist they keep records of this type of thing. Also tell them how your compost works out next year.



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