How to Set Up a Varroa Treatment Program From Scratch

Beekeepers who set a documented treatment program in their first year lose 50% fewer colonies by year three. That's not because the treatment options are different. It's because the structure changes how consistently they monitor, act, and verify.

This guide walks you through how to set up a varroa treatment program from the ground up: baseline testing, threshold-setting, treatment selection, scheduling, and tracking. The 7 steps here mirror the onboarding checklist inside VarroaVault, so you can build the program in the app as you go.

TL;DR

This guide covers key aspects of how to set up a varroa treatment program from scratch
Mite monitoring should happen at minimum every 3-4 weeks during active season
The 2% threshold in spring/summer and 1% in fall are standard action points based on HBHC guidelines
Always run a pre-treatment and post-treatment mite count to calculate efficacy
Treatment records including product name, EPA number, dates, and counts are required for state inspection compliance
VarroaVault stores all monitoring and treatment data with automatic threshold comparison and state export formatting

What You Need Before You Start

You don't need expensive equipment. The essentials:

A wide-mouth jar or commercial mite-washing kit for alcohol wash
70% isopropyl alcohol or windshield washer fluid
A white tray or container for counting mites
A syringe or measuring cup (5mL per frame seam for OA dribble)
Access to the approved varroa treatments for your region
VarroaVault account (free tier works to get started)

That's it. The rest is a process.

Step 1: Do Your First Mite Count (Baseline)

Before anything else, count your mites. Every colony. Right now.

Don't wait for a specific date, a specific season, or until you know more. Your first count is your baseline. You can't track improvement or deterioration without knowing where you started.

Perform an alcohol wash on each colony: sample 300 nurse bees from the brood nest edge, wash in 70% alcohol, count the mites that fall out, divide by 3 to get percentage (or divide by bees counted and multiply by 100).

Log every result in VarroaVault immediately. Date, hive ID, mite count, sample size. That's your baseline.

Step 2: Set Seasonal Thresholds

A threshold is the mite infestation level at which you'll treat. Treatment below threshold is a waste of product and an unnecessary stressor for your bees. Treatment above threshold is protective. The threshold tells you which side of the line you're on.

Set these thresholds in your VarroaVault account settings:

Spring (March-May): 2%
Summer (June-August): 2% standard; 1% if heading into a honey flow
Fall (August-September): 1% (the tightest threshold of the year)
Winter/pre-cluster: 1% triggers a final OA dribble on broodless colonies

These are HBHC-recommended thresholds. You can adjust them based on your experience. Some beekeepers use tighter thresholds in high-reinfestation-pressure areas.

Once set in VarroaVault, the app applies these thresholds automatically and flags any colony that crosses them.

Step 3: Choose Your Treatment Options

You need at least two treatment products covering two different active ingredient classes. This supports resistance management, because using a single product repeatedly selects for resistance faster.

A practical starter rotation for most US beekeepers:

Primary tool: Oxalic acid (Api-Bioxal). Used for fall vaporization protocol and winter broodless dribbles. Zero PHI, low resistance risk, approved for use with honey supers.

Secondary tool: Formic acid (Formic Pro or MAQS). Used for spring or summer treatment when brood penetration is needed and temperatures are below 85°F. Zero PHI.

Optional third tool: Apivar (amitraz). Used for cases where OA or formic efficacy is low, resistance is suspected, or as a scheduled rotation tool. Requires supers off and 14-day PHI.

You don't have to buy all three immediately. Start with OA and formic acid. Add Apivar if your post-treatment counts show the first two aren't achieving 90%+ reduction.

Step 4: Build Your Annual Treatment Schedule

Map out a full-year calendar with your planned monitoring dates and likely treatment windows. You won't stick to it perfectly since seasons vary, swarms happen, and honey flows surprise you. But having a plan is what keeps you from reaching September and realizing you haven't thought about fall treatment yet.

A standard annual schedule:

| Month | Action |

|---|---|

| March-April | First spring mite count; treat if above threshold |

| May | Spring count (pre-flow) |

| June | Flow-season count; note PHI constraints |

| July | Flow-season count; prepare post-flow treatment |

| August | Pre-fall count; begin fall vaporization if at or above 1% |

| September | Post-treatment count; final fall check |

| October-November | Broodless colony check; OA dribble if needed |

| February | Late-winter broodless check if colony is active |

Enter these as recurring monitoring reminders in VarroaVault. The app will notify you when each scheduled count is due.

Step 5: Treat When Threshold Is Crossed (Not on Instinct)

This is the discipline that separates an actual program from occasional treatments. When a count crosses your threshold, treat. Don't wait for the next inspection. Don't assume the count was wrong.

When a count is below threshold, don't treat. Monitor on schedule and wait.

The exception is timing-based treatment: your fall treatment window is specific enough that you should treat in August-September regardless of your exact count if you're anywhere near 1%. A colony at 0.7% in mid-August should be treated. The exponential growth curve means it can reach 2% before your next count.

Log every treatment: product name, EPA registration number, active ingredient, application method, date, hive ID, and applicant name. VarroaVault populates most of these fields from your product library once you've set it up.

Step 6: Do Post-Treatment Counts

Three weeks after completing any treatment course, count again. Compare to your pre-treatment baseline for that event.

Good result: 90%+ mite reduction. (Example: 2.4% before treatment → 0.2% after = 92% reduction.)

Concerning result: Less than 80% reduction. This might indicate resistance, incomplete application, or major reinfestation. Investigate and consider a different treatment class.

VarroaVault links your post-treatment count to the original treatment record and displays the before/after comparison automatically. You'll see immediately whether treatment efficacy met the target.

Step 7: Review and Adjust Annually

At the end of each season, look back at your mite count data for the year. Identify patterns:

Which colonies or apiaries consistently run high?
Which treatments achieved 90%+ reduction consistently?
Did you hit every scheduled monitoring date?
What was your winter loss rate, and does it correlate with pre-winter mite levels?

These questions take 20 minutes to answer if your records are complete. They're the foundation of an improving program year over year. Beekeepers who do this annual review get better at managing varroa every season, not because varroa changes, but because they understand their own operation better.

What Counts as a Complete Varroa Treatment Record

For regulatory purposes, a complete treatment record includes:

Hive or apiary identifier
Treatment product name
EPA registration number
Active ingredient
Application date
Application method and dose
Name of applicant
Pre-treatment mite count
Post-treatment mite count and date

VarroaVault captures all of these fields in a single treatment log entry. State-specific export templates format the records for inspection requirements in your state.

FAQ

What do I need to start a varroa treatment program?

You need: a method for counting mites (alcohol wash kit), at least two approved varroa treatment products covering different active ingredients, a way to track counts and treatments (VarroaVault), and seasonal thresholds for treatment decisions. That's the complete toolkit. You don't need to understand every nuance of varroa biology before you start. Start counting, start recording, and the understanding builds from the data you collect.

How do I set treatment thresholds in VarroaVault?

Go to account settings and select "Treatment Thresholds." You can set separate thresholds for spring, summer, and fall. The default thresholds match HBHC recommendations (2% spring/summer, 1% fall). You can adjust these to be tighter based on your local reinfestation pressure or your experience with specific colonies. Once set, VarroaVault applies them automatically to every mite count you log and fires an alert when any count crosses the threshold.

What counts as a complete varroa treatment record?

A complete record includes the hive identifier, treatment product name and EPA registration number, active ingredient, application date and method, applicant name, pre-treatment mite count, and post-treatment mite count. Most state regulations require records to be kept for 2-3 years. VarroaVault captures all required fields in a single log entry and exports them in state-formatted reports on request.

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.