Re: [cg] Is Manure Safe for the Garden?
COMPOSTED MANURE is what you should use!
If properly composted manure is fine. That's one of the reasons manure is
SOLD only as composted manure. (Unless, of course, you buy it right off the
In a message dated 5/20/99 8:00:56 AM, firstname.lastname@example.org
>I just received this from the Purdue University Plant and Pest
>Diagnostic Lab. I thought it would be extremely newsworthy to share.
>Larry Caplan, Extension Educator -- Horticulture
> Purdue Univ. Cooperative Extension Service, Vanderburgh Co.
> -- Southwest Indiana, USDA Zone 6
> Certified Arborist -- International Society of Arboriculture
>Down the Garden Path Newsletter
>May 12, 1999
>Plant and Pest Diagnostic Laboratory
>Manure is it Safe for your Garden?
>Van Bobbitt, Master Community Horticulture Coordinator & Dr. Val Hillers,
>Food Specialist, Washington State University Cooperative Extension
>Pathogens (microorganisms which cause disease) can be transferred from
>animal manures to humans. The pathogens Salmonella, Listeria and E.coli
>as well as parasites, such as roundworms and tapeworms, have been linked
>applications of manure to gardens.
>Publicity about illnesses due to E.coli 0157:H7 has made people more aware
>of the potential risk of foodborne illness from manure contamination. As
>result, many are now asking whether it is safe to use manure on their
>In August 1993, The Lancet Medical Journal reported on a small E.coli
>0157:H7 outbreak that appeared to be the result of manure applications
>garden. The gardener ate eggs and milk products, but no meat, and her diet
>relied heavily on vegetables from her garden. She fertilized the garden
>summer with manure from her cow and calf. No E.coli 0157:H7 bacteria were
>isolated from fecal samples taken from the cow and calf; however, the
>animals did have antibody counts for the pathogen, suggesting they had
>previously infected. E.coli 0157:H7 was isolated from the manured garden
>So, how risky is the use of manure in gardens and compost piles? If you
>fresh manure in the garden, there is a small risk that pathogens which
>cause disease may contaminate garden vegetables. The risk is greatest for
>root crops, like radishes and carrots, and leafy vegetables, such as
>lettuce, where the edible part touches the soil. Careful washing and/or
>peeling will remove most of the pathogens responsible for the disease.
>Thorough cooking is even more effective.
> To reduce the risk of disease, we suggest these precautions:
>* Apply fresh manure at least 60 days before harvesting of any garden
>vegetables which will be eaten without cooking. If you apply manure within
>60 days of harvest, use only aged or composted manure.
>* Never apply fresh manure after the garden is planted.
>* Thoroughly wash raw vegetables before eating.
>* Do not use cat, dog or pig manure in gardens or compost piles, because
>some of the parasites which can be found in these manures may survive and
>remain infectious for people.
>* People who are especially susceptible to foodborne illnesses should avoid
>eating uncooked vegetables from manured gardens. Those who face special
>risks from foodborne illness include pregnant women, very young children,
>and persons with chronic diseases, such as cancer, kidney failure, liver
>disease, diabetes or AIDS.
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