“…In several cases, the use of organic amendments has been shown to reduce populations of organisms considered to be pests such as phytoparasitic nematodes (e.g., [74][75][76][77][78]), and phytophagous mites (e.g., [79]), as well as damage by some phytophagous insects (e.g., [80]), and the increase of organisms considered beneficial such as free-living nematodes (e.g., [74,76,78,80]) and predatory mites (e.g., [74,75,79]). At laboratory level and on a small scale, it has been shown that, for some organisms such as some predatory mite species, the addition of alternative such as free-living nematodes can enhance their survival and reproduction and, in turn, their densities [81][82][83], which would be reflected in an increase in the control of phytophagous organisms [82,83]. Thus, increasing diversity in the soil, which also includes alternative prey, can favor the increase and permanence of biological control agents.…”