Amblyseius swirskii Sachets - FAQs

How can I tell if the sachets are working?
You'll usually notice fewer pests before you notice the mites. Look for fewer new silvery thrips scars and fewer whitefly nymphs under the leaves. A hand lens helps you spot the mites, and yellow or blue sticky cards track adult pests.

Can I hang swirskii and cucumeris sachets together?
Yes. Their ranges overlap around 68–80°F, so many growers hang both through spring and fall, then switch to whichever fits the season.

Will sachets work on houseplants?
Yes, if the space stays at 68°F or warmer; 70–85°F is best. A warm sunroom, grow tent or shelf under grow lights works well.

How long does one sachet last?
Plan on replacing it every 2–4 weeks. Swap it sooner if it has dried out or gotten soaked.

I sprayed recently. How long do I wait before hanging sachets?
It depends on the product. Neem oil and insecticidal soap kill predatory mites on contact, and some pesticides stay harmful for days or weeks after they dry. Look up what you used in which chemicals are safe for predatory mites, then wait the recommended interval. Don't spray while sachets are hanging.

Are swirskii sachets safe for people, pets and plants?
When used as directed, yes. Swirskii isn't known to bite people or pets, and it doesn't feed on plants. It eats small pests and pollen, and its numbers fall once food runs out.