The short version
Coordinate a multi-unit chigger inspection by treating the grounds, not the apartments, as the subject. Map every tenant complaint to the outdoor areas each person uses, schedule one walk-through of the shared lawns, beds, play areas, and dog runs, and send tenants a notice that explains what is being inspected and why their unit is not. One report with a marked site plan replaces a dozen separate unit visits.
- Chiggers live in outdoor vegetation, so a multi-unit inspection is a grounds inspection.
- Map complaints to the outdoor areas tenants use, not to their unit numbers.
- One scheduled walk-through with a marked site plan covers every building.
- Tenant notices should explain why units are not being sprayed for chiggers.
- Keep a single property-wide record so patterns across buildings are visible.
For property managers, leasing staff, and maintenance supervisors at apartment communities, townhome associations, and mixed-use sites with shared grounds. It also helps HOA boards and owners of small multi-family buildings who need a plan that treats the property as one system rather than a list of units.
What to look for
They climb onto people who walk or sit in those patches, feed for a few hours, and drop off. Bites appear a day later, so tenants report them at home and assume the problem is inside. On a multi-unit property, that produces scattered complaints that look unrelated. Unit 104 and unit 312 have nothing in common until you learn that both tenants walk their dogs along the same fence line. Coordinating the inspection means collecting those details, plotting them on a site plan, and inspecting the outdoor areas that connect the complaints. It also means explaining to tenants why nobody is coming to spray their living room. Chigger larvae live in the top layer of soil and low vegetation where shade and moisture persist.
- 1Bite complaints from several units within the same week or two.
- 2Affected tenants share a lawn, play area, dog run, or walkway.
- 3Welts at ankles and waistbands appearing a day after outdoor time.
- 4Complaints rise in warm humid weeks and drop after dry spells.
- 5Shaded, damp turf or litter-filled beds near the shared areas.
- 6Rabbits or ground-feeding birds active on the grounds.
Why it’s worth acting soon
- Unit-by-unit inspections cost staff time and find nothing.
- Tenants who are not told the plan assume the problem is being ignored.
- The outdoor hotspot keeps feeding new complaints through the season.
- Scattered records hide the pattern that would point to the source.
Treatment options and typical costs
Complaint intake and mapping
No cost: staff step
A short intake form asking where the tenant spent time outdoors in the two days before bites. Plot each answer on the site plan.
- Time
- Ten minutes per complaint
- Best for
- Finding the shared outdoor area behind scattered reports
Tenant notice and information sheet
No cost: staff step
A one-page notice explaining what chiggers are, where they live, what is being inspected, and how to report bites. Reduces repeat calls.
- Time
- Thirty minutes to draft, reused each season
- Best for
- Explaining why grounds, not units, are inspected
Coordinated grounds walk-through
$0–$250 depending on site size
A pro walks the mapped areas with a maintenance lead, runs black card tests, and marks the site plan. One report covers the property.
- Time
- One to three hours for a typical community
- Best for
- Covering every building's shared areas in one visit
Targeted treatment of marked areas
$150–$500 per application depending on acreage
Labeled product applied to the marked turf and bed areas with a stated re-entry interval, scheduled with tenant notice.
- Time
- One visit, repeated as needed in season
- Best for
- Confirmed hotspots in shared grounds
Seasonal grounds program
$500–$1,500 per season depending on acreage
Scheduled applications and re-inspections of the marked areas, with reports delivered to the office after each visit.
- Time
- Three to six visits, spring through early fall
- Best for
- Communities with chigger complaints every year
Prices are typical published ranges. Ask what’s included before you compare quotes.
Thick, damp mulch by the house can hold chiggers. Keep it thin and let it dry out.Intake and mapping: turning complaints into locations.
Within a week, the plotted points usually cluster around one or two areas. Those are the inspection targets. Before the pro arrives, have a maintenance lead walk the clustered areas with a few black cards on a warm afternoon. Lay each card flat for ten minutes and count moving orange specks. Note shade, moisture, grass height, litter, and animal sign. Write it on the plan. This preparation cuts the pro's time on site and makes the report specific from the first visit. Start with a one-page intake form used for every bite complaint. It asks: unit number, date bites were noticed, where on the body, and where the tenant spent time outdoors on the property in the two days before, with a checklist of named areas such as the north lawn, playground, dog run, mailbox bed, pool deck, and each walking path. Add a line for pets and their routes. Plot each form on a copy of the site plan with the date.
Scheduling the walk-through and managing tenants.
The pro's report will come later; your notes are the same-day record. Send the tenant notice two days before. It should explain what chiggers are, where they live, why units are not being entered, what areas are being inspected, and how to report bites. It should also say that treatment, if needed, will be announced separately with areas and re-entry time. Expect a few tenants to insist their unit needs treatment. The notice and a short explanation that chiggers cannot live indoors usually settle it. If a tenant reports bites with no outdoor exposure, log it separately and consider a unit inspection for a different pest. Schedule the walk-through within a week of the cluster appearing. Pick a warm afternoon, since larvae are more active and easier to confirm. Send the pro the marked plan and card counts in advance and ask them to bring their own cards. Assign one staff member to walk with the pro, carry the plan, and write down every observation against the area names.
Damp leaf piles hold moisture chiggers like. Rake them away from the house.One report, one plan, one file.
Falling counts and no new points mean the plan is working. New points in a new area mean the map has grown and the next walk-through starts there. Keep the whole file for the property, not per unit. Next season, it tells you where to walk first. After the walk-through, combine your staff notes and the pro's report into a single property document. It should include the site plan with complaint points, card counts, confirmed hotspots, and habitat notes; the pro's proposed treatment by area with product, timing, re-entry interval, and cost; a landscaping change list by area with an owner and a date; and the tenant notice that will go out before treatment. Send the landscaping list to the grounds contractor the same day. Mowing lower, lifting hedge bottoms, and clearing litter at the marked areas should happen before or right after the first application. After treatment, re-run cards at the marked areas three weeks later and log the counts on the same plan. Continue plotting any new complaints.
What affects the price
- Total acreage of shared turf, beds, and edges.
- Number of buildings and separate outdoor areas to walk.
- Whether the inspection is credited toward treatment.
- Access constraints such as gated dog runs or fenced play areas.
- Frequency of visits over the season.
- Reporting requirements for owners or an HOA board.
When to call for help
Call a pro once your complaint map shows two or more units tied to the same outdoor area, or once a single area has produced complaints in consecutive weeks. Bring the marked site plan and the intake forms. A pro who does chigger work regularly will walk the marked areas first and confirm with black cards before proposing anything. Also call if the property has wooded edges, retention ponds, or large unmaintained areas that staff cannot inspect safely.
What you can do yourself
A maintenance lead with black cards and the site plan can confirm a hotspot in an afternoon. Intake, mapping, tenant notices, and the initial grounds walk are all things your staff can do. The efficient split is staff for intake and habitat work, pro for confirmation and application. A pro adds the treatment license, product knowledge, and a report format that satisfies owners and boards. Many of the fixes, such as mowing lower, clearing hedge bottoms, and adjusting irrigation, are within the landscaping contract you already have.
Simple ways to keep chiggers away
- Keep a standing chigger intake form at the leasing office each season.
- Plot every complaint on the site plan the day it arrives.
- Walk shared areas monthly in warm months with black cards.
- Coordinate mowing and litter removal with the landscaping contractor.
- Post treatment notices with areas and re-entry times at each building.
- Review the season's map each fall to plan next year's landscaping.
If you get a quote, ask which spots will be treated and how long to stay off the lawn.Did you know?
Chigger larvae climb onto hosts from grass tips and low leaves.
Bites often cluster where clothing is tight, such as sock lines.
Chiggers are most active when ground temperatures exceed about 60 degrees Fahrenheit.
Questions people ask
Do apartments need to be inspected inside for chiggers?
A tenant may carry a few larvae in on clothing, but they drop off within hours and cannot reproduce in a unit. Inspect the grounds the tenant uses. If bites are occurring indoors with no outdoor exposure, look for a different pest. No. Chigger larvae need humid soil and vegetation and do not establish indoors.
How do I find which outdoor area is causing complaints?
The overlap is the area to inspect first. Confirm it with a black card test on a warm afternoon. Ask each tenant where they spent time outdoors in the two days before the bites, including dog walking routes, play areas, benches, and parking paths. Plot the answers on the site plan.
What should the tenant notice say about a chigger inspection?
That chiggers are tiny outdoor mites living in lawns and beds, that bites appear a day after outdoor exposure, that the grounds are being inspected and may be treated, that units are not affected, and how to report bites with the location they visited. Include the date and areas of any planned treatment and the re-entry time.
How long does a multi-unit chigger inspection take?
A pro walks the marked areas, runs black card tests, and notes habitat conditions. Walking every square foot is unnecessary once the complaints have pointed to specific zones. One to three hours for a typical community, depending on acreage and how many separate areas the complaint map identifies.
Should tenants be asked to stay off the grounds during treatment?
Post the areas and re-entry time at each building and on the community app or email. Ask the pro to schedule for a low-use time, such as a weekday morning. Yes, for the treated areas until the product has dried, which most turf labels put at a few hours.
How do I report a chigger inspection to an owner or board?
One page: the complaint count and date range, the marked site plan showing complaint locations and confirmed hotspots, the pro's findings and proposed treatment with cost, the landscaping changes assigned to the grounds contractor, and the notice sent to tenants. Attach the pro's report.
What do homeowners actually do to keep mosquitoes out of the yard?
The poll was sponsored by a mosquito-control company and did not disclose its sample size. Before paying for treatment, tip out saucers, buckets and clogged gutters. That removes the breeding sites a spray cannot reach. Removing standing water leads the list. homeowners, fielded by TNS Global with multiple answers allowed, 48% said they had removed standing water, 44% had cleared lawn debris, and 27% had cleaned gutters.
Do chigger bites always leave a visible mark?
emergency department, only 50% had a visible papule or bite mark and 32% had skin redness, even though 98% of cases were attributed to insect or chigger bites. Those are findings among selected clinic patients, not a general-population rate. If a child has itching or swelling after outdoor play, treat it as a possible bite reaction even when you cannot find the bite itself. No. In Smith and colleagues' 1998 case series of 94 children treated for summer penile syndrome at one Midwestern U.S.
Sources (5)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Chigger Exterminator · Updated September 11, 2026 · How we write these guides