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Occasional Invaders

Clover Mites

Bryobia praetiosa

Danger Level: 1/5Updated September 2026 · Boise, ID

IdentificationHow to Identify Clover Mites

Quick Answer

Clover mites are tiny, oval mites with a characteristic reddish-brown color. Their front legs are much longer than other legs, giving them a distinctive appearance.

Full identification notes

They're so small they look like moving specks, and they leave a red stain when crushed.

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Clover Mites Behavior & Habits

Understanding how clover mites behave helps prevent infestations

Clover mites feed on grass, clover, and plants.

More about their habits

They don't bite or feed on blood. In spring and fall, they climb walls and enter homes through tiny cracks, and thousands can invade at once. They're attracted to sunny, south-facing walls.

Clover Mites Risks & Dangers

What clover mites can do to your health and property

Health Risks

Clover mites don't bite humans or pets and don't transmit diseases.

Property Damage

When crushed, clover mites leave rusty-red stains on walls, curtains, furniture, and floors.

Full health and property details

Health Risks

They're completely harmless.

Property Damage

These stains are their body fluids and can be difficult to remove.

Signs of Clover Mites Infestation

Look for these indicators in your home

Signs You Have Clover Mites

What homeowners spot first

  1. Tiny reddish specks on sunny windowsills
  2. Masses of mites on south-facing walls
  3. Red stains on walls or curtains
More signs to look for
  1. Mites visible on window screens
  2. Dust-like clusters along window frames or weatherstripping

Clover Mites in Boise & the Treasure Valley

Clover mites are a classic spring and fall caller in the Treasure Valley, with most of our calls landing in April-May and again in September-October.

More on what we see locally

New Boise and Meridian subdivisions get hit hardest because the sod is laid right up to the stem wall and the south-facing stucco bakes in the afternoon sun. If your lawn is well-fertilized and touches the foundation, you'll see them on the sunny side of the house first.

Our Solution

How We Handle Clover Mites

What our approach looks like

Clover mite control relies heavily on the bare zone concept.

Our full approach

Removing grass from a strip around the foundation creates a barrier they won't cross. We combine that with a perimeter treatment before invasion season, and sealing gaps around windows and doors on your end helps keep them out.

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How to Prevent Clover Mites

Steps you can take to reduce the risk of infestation

  1. Create 18-24 inch bare zone around foundation
  2. Remove grass touching the building
  3. Use pea gravel or mulch in foundation zone
More prevention steps
  1. Seal cracks around windows and doors
  2. Keep vegetation trimmed away from home

Clover Mites Questions Answered

Common questions about identification, prevention, and treatment

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Do clover mites bite?

Quick answerNo.

Clover mites feed only on plants. They don't bite humans, pets, or damage household items. The red stain they leave when crushed is often mistaken for blood, but it's actually their body fluids.

Why are they only on one side of my house?

Quick answerClover mites are attracted to sunny, warm surfaces.

South and west-facing walls absorb the most heat, attracting mites from the lawn. Shaded walls rarely have clover mite problems.

How do I remove clover mite stains?

Quick answerDon't crush clover mites.

Vacuum them instead to prevent staining. For existing stains, try gentle cleaning solutions on a test area first. Some stains are permanent on porous surfaces.

Think You Have Clover Mites?

Call and we'll talk through your options. We usually get out within 24 to 48 hours.

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