Varroa Mite Calculator & Treatment Tracker

Turn a wash count into a clear yes / no, then keep your treatments, rotations and re-checks straight. Free, and it saves to this device.

1. Mite wash calculator

Count the mites from a sugar shake or alcohol wash, and how many bees were in the sample (about 300 bees is roughly half a cup).

Mites counted

Bees in sample

Apiary risk

Hive (optional)

—Enter a count to see your mite load and what to do.

Mite load	What it means
Under 1%	Low. Keep monitoring monthly (every 3 weeks in late summer).
1% to 2%	Rising. Re-test in about a fortnight and get your treatment ready.
2% or more	Act now. This is the treatment threshold. High-risk apiaries act at 1%.

2. Treatment tracker

Log what you put in and when. The tracker flags if you're about to repeat the same chemical group (resistance risk) and reminds you to re-wash 14 days after you finish.

Hive (optional)

Product

Date applied

Date removed / finished

How to do a wash and choose a product: see the varroa treatment & monitoring guide. Only use miticides registered by the EPA and legal in your state, and follow the label.

Want this synced across your devices?

The Planting Season app keeps your hives, inspections, washes and honey in one place, with withholding countdowns and backup.

Open the App

Thresholds follow current best-practice guidance (a 2% action threshold; 1% for high-risk apiaries). General information only, not veterinary advice. Your data stays in this browser on this device.