Predatory Mites Whitepaper
predation/development, insufficient effect;
++ some development/effect but limited; +++ sufficient control effect/development; ++++ very good control/ [...] )
more effective at lower densities of spider mites.
At higher densities P. persimilis is the best option.
• N. californicus is more effective on spider [...] (Fig. 1). How to read:
N. californicus is most effective between 15°C and 32.5°C. It still has some effect between 12.5°C and 15°C,
and between 32.5°C and