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Old 02-04-2011, 03:11 PM
simon simon is offline
Join Date: Jan 2011
Location: Florida
Posts: 38
Default nematodes

Is there a Medium that nematodes will not live in.


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Old 02-04-2011, 06:53 PM
GpsFrontier GpsFrontier is offline
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Join Date: Mar 2009
Location: Lake Havasu AZ.
Posts: 1,855

In a word no,
because it isn't the growing medium that allows them to live.

Here is a quote from the University of Florida: HS777/CV255: Production Systems - Florida Greenhouse Vegetable Production Handbook, Vol 2 (paragraph is right above the section titled "Perlite, Peat Bag or Rockwool Systems")

"To limit damage from nematodes as well as waterborne fungi, bacteria, and viruses, hydroponic growers should use multiple sumps rather than a centralized system. Nematodes are easily spread within a greenhouse by any means of moving contaminated water, soil, or plant material. Nematodes are aquatic animals, so are especially easily moved in water. Recirculating hydroponic systems are especially vulnerable to nematodes and certain diseases because the entire system can become uniformly infested as soon as nematodes or disease organisms in or on roots anywhere in the system begin reproducing and get into the water. This can be a particularly serious problem because labeled chemical treatments are limited or nonexistent."

There are many thousands of species of nematodes, and not all of the are bad (pathogens) for the plants.

Nematodes (College of Agriculture and Life Sciences, Cornell University)
Greenhouse Nematode Management, Florida Greenhouse Vegetable Production

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Home Hydroponic Systems

Last edited by GpsFrontier; 02-05-2011 at 01:25 AM.
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