I am waging war against nematodes, and the best solution that I have unknowingly experienced is the Philippine oregano. With the flower boxes ignored for seveal years, the herb has made the soil unfit for nematode reproduction because it is resistant to the parasite like a rock.The Philippine oregano grow like weeds in our area. Just stick it into the soil, drench it with water, and it will grow like mad. And drenching the soil can also be a good thing for nematode control because the parasite cannot stand too much moisture
