What Andersoni Sachets Protect Against

Spider mites, caught early

Sachet mites find spider mite colonies while they're small: two-spotted spider mites, carmine mites, Lewis mites and Banks grass mites, plus European red mites and citrus red mites.

Russet and broad mites

Russet and rust mites, including tomato russet mites and hemp russet mites, plus broad mites and cyclamen mites.

A. andersoni also eats some young thrips larvae, but it isn't a thrips control. For thrips, use A. cucumeris or A. swirskii.

When mites get ahead of the sachets

Sachets are a preventive tool, not a rescue. If spider mite numbers climb: