It is best to make at least two applications, separated by 7-10 days in order to stagger the life cycles of the nematodes and to assure complete coverage. In cases of severe infestations, applications should be made every 7-10 days or until infestation subsides.
How long will nematodes last?
Usually 3-7 days, with maximum effect occurring over 2-4 weeks. Nematodes disintegrate the pests from the inside out, so you will not see dead insect bodies as you would with a chemical knockdown.
How do you know if nematodes are working?
You can see results immediately. Using a spade or shovel, turn up the ground where nematodes were applied, to check for dead larvae. Once you have seen dead larvae, this tells you that the nematodes are working.
What is the best time of day to apply nematodes?
It's a good idea to apply your nematodes during low light periods (morning or evening are best). It is very important that you mix and apply your nematodes quickly so they don't 'expire' in the can. You want to insure the nematodes have a chance to get into the soil before the water is evaporated.
How long does it take to get rid of nematodes?
Over a period of several weeks to a few months, soil temperatures become high enough to kill nematodes, as well as many other soil pests and weed seed to a depth of 8 inches. None of the pests will be completely eradicated, but their numbers will be greatly reduced, allowing the successful production of a crop.
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