Predatory mite for two-spotted spider mite
The slower, hardier partner to Phytoseiulus persimilis. UConn says it acts more slowly but eats a wider range of prey and survives longer when spider mites are scarce, living on broad and cyclamen mites, thrips and pollen. That makes it the one to keep low numbers low, and it can go in before an outbreak. Cornell says it works best released early in the season, while mites are still few, and that it will not persist on pollen alone. It copes with conditions that stop persimilis. Koppert gives 13–32 °C (55–90 °F) and Cornell 15–35 °C (59–95 °F). On humidity the sources differ: Cornell's optimum is 65–75% and it tolerates down to about 40%, while Koppert says it is sensitive below 60%. Biobest pairs it with persimilis for heavy infestations, and UConn says the two can be released together. Koppert says not to use it in tomato.
Before you order
Slower spider mite predator that survives on pollen and other small prey, so it can go in before mites build up. How it works, how to tell it has established and the supplier list are on the full Neoseiulus californicus profile.
How many do I need?
Area and infestation level in; quantity, cost and a weekly schedule out. Open the calculator →
Other controls for two-spotted spider mite
- Phytoseiulus persimilisPredatory mite · 2–50 /m² per release (Koppert); 100+ /m² on hot spots (Biobest data sheet)
- Amblyseius andersoniPredatory mite · 20–100 /m² (Biobest); 50–250 /m² weekly (Koppert)
- Feltiella acarisugaPredatory midge · 0.25–25 /m² per release, at least 3 weekly releases (Koppert)
- Stethorus punctillumPredatory lady beetle · 100–200 adults per hot spot, or 1–4 per 10 sq ft, weekly for 3–4 weeks (Arbico; its low rate is every two weeks)