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Showing posts with the label biological control

Beneficial nematodes

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There are many different species of nematodes, but since a couple of blocks in my main vegetable garden have developed a root-knot nematode problem (primarily affecting susceptible tomatoes and peppers), I've been interested in ways to reduce their numbers. Root-knot nematode damage on tomato ( University of Missouri Extension ) Rotation management is the primary organic method, using non-susceptible crops and varieties to decrease numbers, prior to trying some susceptible sort of heirloom tomato, for example (actually, my heirlooms are going to go in containers this year). Using trap crops such as rape seed (canola) and French marigolds is another recommended strategy. But, beneficial nematodes that are supposedly parasitic on root-knot nematodes, sting nematodes, and ring nematodes sounded particularly appealing. The notion of having good guys take care of the bad guys in an underground soil contest, hmmm -- sounds promising to me. So I plopped down my credit card for a supply ...