Predatory Mites Whitepaper
development, not usable; + limited predation/development, insufficient effect;
++ some development/effect but limited; +++ sufficient control effect/development; [...] and have their optimum at high
temperatures (30°C). At 15°C there is till some
predation but development is very slow. If the
temperature is below 8°C for [...] thrips, pollen, etc.)
In greenhouses and fields, they will usually
find some other food. Also, prey mites can be
provided as supplementary feeding.