Varroa Mite Treatment Checklist: Before, During, and After

Beekeepers who follow a pre-treatment checklist are 70% less likely to make application errors that reduce treatment efficacy. That statistic reflects a consistent truth: errors happen at moments of distraction, and a checklist prevents distraction from becoming a mistake.

Use this checklist for every treatment event, whether it's a single hive or a 50-hive batch.

TL;DR

Treatment decisions should always be triggered by a mite count result, not a fixed calendar date
Different treatments have different temperature requirements, PHI restrictions, and brood penetration capabilities
Always run a post-treatment count 2-4 weeks after treatment ends to calculate efficacy
Efficacy below 80% warrants investigation -- possible resistance, application error, or reinfestation
Rotate treatment chemistry to prevent resistance buildup across successive cycles
VarroaVault logs treatment events, calculates efficacy, and flags when rotation is recommended

PRE-TREATMENT CHECKLIST (Complete Before Opening Any Hive)

Planning and Product

[ ] Mite count logged within the past 72 hours (pre-treatment baseline)
[ ] Count confirms treatment is warranted (at or approaching threshold)
[ ] Treatment product selected based on: season, temperature, honey super status, organic certification status
[ ] Product registration number confirmed (EPA reg number on label)
[ ] Sufficient product on hand for all hives in this treatment event
[ ] Product within use-by date (check expiration)

Temperature Check

[ ] Current ambient temperature is within product requirements:

- OA dribble: above freezing (32°F), bees clustered

- OA vaporization: above 50°F preferred

- MAQS/Formic Pro: 50-85°F

- Apiguard/ApiLife VAR: above 59°F

- Apivar: no temperature restriction

[ ] Weather forecast for treatment duration confirms temperature compliance

- For Apiguard (28 days): no periods below 59°F forecast

- For MAQS (7 days): no periods below 50°F or above 85°F

Honey Super Status

[ ] Honey super status confirmed per product requirements:

- Apivar: supers REMOVED

- Apiguard: supers REMOVED

- MAQS: supers can remain per label (verify current label)

- OA vaporization: verify current Api-Bioxal label for super status

- OA dribble: confirm with current label

PPE (Personal Protective Equipment)

[ ] Nitrile gloves (required for all chemical treatments)
[ ] Eye protection (goggles or safety glasses)
[ ] Respiratory protection if applying OA vaporization (N100 respirator)
[ ] Standard bee veil and protective clothing

Equipment

[ ] Appropriate applicator ready (syringe for dribble, vaporizer for OA vape, knife/scorer for strips)
[ ] Timer or watch for timing multi-step applications
[ ] Tally sheet or phone with VarroaVault open for batch logging
[ ] Hive tool

DURING-TREATMENT CHECKLIST (At Each Hive)

Before Applying

[ ] Hive ID confirmed (treating the right hive, logging to the right record)
[ ] Queen status noted (if queen introduction recently done, verify product safety)
[ ] Honey super status verified at this specific hive

Application Steps

For OA Dribble:

[ ] Confirm no capped brood visible (open and check if unsure)
[ ] Count occupied seams with bees
[ ] Apply 5ml per occupied seam at consistent pace (10-15 sec per seam)
[ ] Total dose logged (number of seams, total ml)

For OA Vaporization:

[ ] Hive sealed (entrance reducer, all gaps plugged)
[ ] 1g OA per brood box loaded into vaporizer
[ ] Vaporizer heated per equipment instructions
[ ] Full volatilization confirmed before removing equipment
[ ] Entrance plugged for 10-15 minutes post-treatment

For Apivar:

[ ] Two strips per hive confirmed
[ ] Strips scored/perforated to increase surface area
[ ] Strip 1 placed between frames 3-4 in brood cluster
[ ] Strip 2 placed between frames 7-8 in brood cluster
[ ] Both strips hanging vertically in cluster contact

For MAQS/Formic Pro:

[ ] Two pads placed on top bars over cluster
[ ] Outer cover propped slightly for ventilation if temperature above 75°F
[ ] Treatment start date noted for strip removal timing

For Apiguard:

[ ] Extra super or eke added for head space
[ ] Foil partially removed (1/4 to full, per your practice)
[ ] Tray placed centered over cluster on top bars

Logging

[ ] Treatment logged in VarroaVault immediately at this hive
[ ] Product, dose, date, applicator confirmed in log entry
[ ] PHI automatically calculated and confirmed in VarroaVault
[ ] Next step reminder scheduled (second dose, strip removal, follow-up count)

POST-TREATMENT CHECKLIST (Follow-Up)

Immediate Follow-Up (Days 1-7)

[ ] Monitor for abnormal bee behavior (excessive clustering at entrance, unusual mortality)
[ ] Check temperature if using temperature-sensitive products (Apiguard, formic acid)
[ ] Second application reminder confirmed (Apiguard day-14, MAQS repeat if needed)

Treatment Step Reminders (From VarroaVault)

[ ] Apiguard dose 2: Day 14 reminder set
[ ] Apivar check and efficacy count: Day 42 reminder set
[ ] Apivar removal: Day 42-56 reminder set
[ ] OA vaporization next application (extended protocol): Day 5-7 reminder set

Post-Treatment Efficacy Count

[ ] Post-treatment count scheduled and logged in VarroaVault at appropriate interval:

- OA dribble/vaporization: Day 7-14 after final application

- MAQS/Formic Pro: Day 14 after strip removal

- Apiguard: Day 14 after dose 2

- Apivar: Day 42 from application date

[ ] Efficacy calculated by VarroaVault (target: 90%+)
[ ] If efficacy below 90%: application error investigated, resistance reported if appropriate

Using This Checklist in VarroaVault

VarroaVault's digital treatment checklist pre-fills from your hive record data to reduce manual entry at every step. When you open the treatment checklist for a hive, it automatically:

Loads your most recent mite count and displays whether treatment is recommended
Shows the temperature compliance status for your location
Populates the honey super status from your last inspection log
Pre-fills product details if you've used the same product before

You can complete the checklist in the field and it auto-generates the treatment log entry when you submit.

Frequently Asked Questions

What should I check before applying a varroa treatment?

Before any treatment, verify: your pre-treatment mite count is logged, your product is appropriate for the season and temperature, honey supers are managed per label requirements, you have sufficient product, and you have appropriate PPE. Temperature compliance is the most commonly overlooked pre-treatment check.

Is there a post-treatment follow-up checklist I should use?

Yes. After treatment, confirm follow-up reminders are set for treatment steps (second Apiguard dose, Apivar strip removal, next OA vaporization), schedule your post-treatment efficacy count at the appropriate interval, and verify efficacy is above 90% when that count is logged. VarroaVault automates all of these reminders when you log the treatment.

Does VarroaVault have a built-in treatment checklist?

Yes. VarroaVault's digital treatment checklist pre-fills from your hive record data and generates the treatment log entry automatically when submitted. It covers pre-treatment verification, application steps, and post-treatment follow-up reminders in a single workflow.

How do I know if my varroa treatment is working?

Run a mite count 2-4 weeks after the treatment ends and compare it to your pre-treatment count. The efficacy formula is: ((pre-count - post-count) / pre-count) x 100. A result above 90% indicates effective treatment. Results below 80% should trigger investigation for possible resistance, application error, or reinfestation. Log both counts in VarroaVault to track efficacy trends across treatment cycles.

How often should I check mite levels in my hives?

At minimum, once per month (every 3-4 weeks) during the active season. Increase to every 2 weeks when counts are near threshold or after a treatment to verify it worked. In fall, monitoring frequency matters most because the window to treat before winter bees are raised is narrow. VarroaVault's monitoring reminders can be set to your preferred interval for each apiary.

What records should I keep for varroa management?

Each record should include: date of count or treatment, hive identifier, monitoring method used, number of bees sampled, mites counted, infestation percentage, treatment product name and EPA registration number, dose applied, treatment start and end dates, and PHI end date. State apiarists typically expect this level of detail during inspections. VarroaVault captures all of these fields in a single log entry.

Sources

American Beekeeping Federation (ABF)
USDA ARS Bee Research Laboratory
Honey Bee Health Coalition
Penn State Extension Apiculture Program
Project Apis m.

Get Started with VarroaVault

The information in this guide is most useful when you have your own mite count data to apply it to. VarroaVault stores every count, flags threshold crossings automatically, and builds the treatment history you need for state inspections and effective management decisions. Start your free trial at varroavault.com.