Root knot nematodes

Have any of you heard of this product or used it, Monterey Nematode Control?Says it is organic see their add for contents and description.Just want to know if it will work.
Rick

I have read several studies testing various products that claim to kill rootknot nematodes, including the active ingredient in Monterey Nematode Control (Soapbark tree). I think the key word is "control". All the products wll reduce the number of nematodes in soil but not kill them.

I don't know if you can kill them. But you can reduce their numbers to about the same level as the Monterey Nematode Control will. Flood the area with water and cover it with black plastic during the hottest part of your summer. It takes a couple months but will reduce the numbers of nematodes.

Then plant nematode resistent plants - the label will have that information.

Daisy

I took a look at this product and I wouldn't buy it for root knot because it doesn't mention root knot specifically. Plus, it kills beneficial nematodes. It lists all types of plants that it can be used on, including plants that are not susceptible to root knot.

It also causes "serious but temporary" damage to your eye if you get it in your eye. I question a lot of OMRI listed products. So many of them have these warnings. I don't want things like that near my plants if they're dangerous to me. It just doesn't make sense that it would be okay to ingest. I know things dissipate, but I need proof before I'll use something like this that claims to be organic/safe/whatever they call it.

I'm doing a series of things to control the root knot nematodes in my beds. I've had them for at least 3 years.

There's a beneficial nematode product on Amazon that I'm applying. I'm also growing cover crops of specifically: Cahaba White Vetch this fall and Tangerine French marigolds this coming spring. And of course I will only be planting resistant and suppressant crops in the infected beds for a few years.

The Amazon product: https://www.amazon.com/gp/product/B007XFI4VC/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

The Cahaba vetch was hard to find. Here is my source: Don Wirth at Saddlebutte.com in Oregon: seed@saddlebutte.com It's expensive, and expensive to ship, but you have to get control of the root knot! I think Saddle Butte sells mostly wholesale cover crops, so I hope they don't get tired of selling small quantities.

I found most of the info above in this downloadable pdf from Alabama A&M & Auburn University Cooperative Extension: http://www.aces.edu/pubs/docs/A/ANR-0030/ANR-0030.pdf . Some other sources seem to corroborate the info (there's a lot out there if you search). I found the Amazon product through a gardening friend.

There are 40 species of root knot nematodes! Southern & peanut are the 2 most common. Different species are controlled by different things. The cover crops I mentioned above control more types of species than some of the others. You can see that in the Table in the pdf.

I'm told that mustard also works well (Don Wirth agrees--he's doing tests right now--fall of 2016), but I don't know what type of mustard plants.

Also, if you want to solarize your soil, as suggested by the other member, don't use black plastic. Use 2 mil clear plastic (you can find it at Home Depot--it's used for painters' drop cloth). I've also done that, although I HATE to sacrifice any growing space in the summer when the solarizing results will be best. I did it in the fall and it didn't work on the root knot. My beds are also very deep and the sun only penetrates so far.

Here is the info (downloadable pdf) on how to solarize your soil: http://vric.ucdavis.edu/pdf/soil_solarization.pdf

This message was edited Oct 26, 2016 11:55 AM