Root knot nematodes
JXBrown (Sunset 24, N San Diego County)
7 years ago
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Root Knot Nematode (RKN), Heat Treatment, and Root Pruning
Comments (13)Oh, now that things are getting back to me; after clean-shaving all the roots and treating with bleach, I also scrubbed the root-stub with a tooth brush under running tap water... As I mentioned many times before, PREVENTION is the best cure! Do examine ALL rooted figs you get from who-ever. If RKN ever get into ones garden soil, it is extremely difficult to eradicate them, no matter how many RKN- trapping-marigolds are planted, RKN-eating-good- nematodes (expensive) are applied, or chemicals used. There is one chemical that nukes the soil (it practically kills everything!). I forgot the exact name. But it SO toxic, that it is now illegal and not available any more....See MorePossible Root Knot Nematode fix
Comments (7)Personally I have given up doing anything to the soil to control these nematodes. Whatever I have done works for a while, but the nematodes come back. Any type of organic material discourages them, so worm castings and the soil drench described above should have some effect. However, I think the effects will be rather short-lived. Maybe if you have vegetables or something that you harvest in one season it will help a lot. I try to plant perennials and there has only been a few things that have worked for me. First is to buy plants that aren't bothered by these nematodes. Most azaleas and camellias, for example, aren't bothered by them, nor are most trees. On the other hand roses and gardenias need to be grown on grafted rootstocks--although there are some roses (Louis Philippe sp?) that are resistant. The second thing that works for me is to put the plants in pots, use potting soil or amended soil and then place the pots on some type of cement or concrete. The nematodes don't like concrete. If you put the pot on the ground eventually the nematodes will reach the roots. The nematodes love sandy soils. Some people who live in areas with little sand aren't bothered by them as much, however, most of Florida sits on top of sand, so most of us need to be concerned with root knot nematodes....See MoreRoot Knot Nematodes
Comments (3)It does not look like root knot nematode damage. Usually the the root in that instance will be knarled with knot llike growth all over them. South Georgia and north Florida have lots of tomato diseases. Leaves look like Bacterial Speck, but that would not be your wilting problem. Spotted Wilt is a major problem for me. Have to use resistant varieties....See MoreHow to distinguish root knot nematodes
Comments (1)thanks for the lesson. Few people know what happens. I refer affected roots as "knobby string of pearls."...See MoreBarrie, (Central PA, zone 6a)
7 years agoJXBrown (Sunset 24, N San Diego County) thanked Barrie, (Central PA, zone 6a)JXBrown (Sunset 24, N San Diego County)
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7 years agoJXBrown (Sunset 24, N San Diego County)
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