Varroa Mite Forecaster

Your mite forecast

↔ Scroll sideways to see future years until the colony is at risk · counts on the left scale, mite wash on the right

Model colony decline from mites (parasitized bees die younger, so the bee line falls and washes climb)

Try a treatment: Pick a product, press Place, then click the chart where you applied it. Drag the band's middle to move it, or its right edge to change length.

Location (for °C check):

Step 1 of 3

Where are your bees?

Climate

Auto-detect climate from my location (needs internet)

Reinvasion pressure from neighbours (starting assumption)

Step 2 of 3

Your mite tests

Add each test you've done. The earliest one anchors the curve; later ones are what the model fits to.

Step 3 of 3

Treatments applied (optional)

Pick the product and date. Leave efficacy blank for Auto — the model infers how well it actually worked from your next test.

Fitted forecast

↔ Scroll sideways to see future years until the colony is at risk

Your mite forecast

Where are your bees?

Your mite tests

Treatments applied (optional)

Fitted forecast

What must be true to fit your numbers

Average several hives

Auto-plan treatments

Treatment efficacies

Efficacy worked out from your tests

Save your data