- (301) 829-0060
- Mt. Airy, MD
- info@pestshieldinc.com
Pest Shield, Inc. has provided licensed pest management across Frederick County since 2011, holding Maryland Department of Agriculture license #30263 and serving Woodsboro and the surrounding rural communities with the same team that handles every call. Owner Troy Yowell brings approximately 35 years of pest management experience to every property inspection, and on-staff entomologist Jeffrey Allwine provides species-level identification when field assessment alone isn’t enough. Pest Shield carries a 5.0 rating across 338+ reviews — earned by being straight with customers about what they actually need.
How it works
Four steps. No surprises. Same answer whether it's your first call or your tenth.
You reach Troy or someone on his team directly. No call center, no dispatcher, no routing.
Same-day or next-day for most calls. Emergency stinging-insect situations and real-estate WDI deadlines get priority.
We identify the species, locate entry points, and find the source — not just the symptom.
Written recommendation, straightforward pricing, no obligation. If you don't need treatment, we'll tell you.
Most people call about ticks after finding one on a family member or a dog. That’s the most common trigger — and it’s a reasonable one. But by the time you’re pulling ticks off people or pets regularly, the pressure on your property is already established. Woodsboro’s rural Frederick County setting creates baseline tick conditions that are meaningfully higher than suburban areas, and understanding why helps explain what you’re actually managing.
Two species account for most of the tick activity in this part of Maryland:
Property-level risk indicators go beyond finding a tick on a person or pet. If your lot borders a tree line, a hedgerow, a field edge, or a deer trail — or if you have unmaintained grass transitions between lawn and woods — those are the zones where ticks concentrate and wait for a host. Deer move across property lines freely, depositing adult ticks as they go. A maintained lawn adjacent to a working farm or wooded corridor carries real exposure risk even without dense vegetation on the property itself.
Lyme disease is the primary disease concern in Frederick County. Maryland is consistently among the higher-incidence states in the country, and rural eastern Frederick County — with its mix of farmland, woodlots, and deer habitat — sits in the region where that risk is most concentrated. Rocky Mountain spotted fever is less common but more acutely dangerous when it occurs. Neither warrants panic, but both warrant taking tick activity on your property seriously rather than treating it as a seasonal nuisance to manage on your own.
60+ years of combined experience. Tell us what you’re seeing — we’ll come look, no obligation.
Pest Shield has been absolutely wonderful! We had an issue with mice, and Pest Shield was the ONLY company we could get to come out to our house on the same day which happened to be a Sunday. The technician, Troy, was extremely knowledgeable, friendly, and honest. He saved my husband and I a lot of money. Most companies would have taken advantage of the situation. It’s been 30 days and we have not had any more issues. We were so satisfied with the company and the services we received, that we also signed up for the pest (bugs) control service last month. Since then, we have not seen any bugs (including those nasty centipedes and camel crickets)!!! Thank you so much, Pest Shield!!!!!
Myah Moxley · February 2015 Read on HomeAdvisor →
Pest Shield is a great company to work with. Troy is very knowledgeable and won’t do services you don’t need. He does a thorough job the first time so you don’t have to keep calling him back.
Jim Frizen · April 2020 Read on Google →
I have been working with Troy for a year now and I would never even consider using another company. On-time, high quality, dependable and customer-centric are words that come to the top of my mind. In an industry filled with folks out to make a fast dollar, Troy is one of the few that is more concerned about doing the job right no matter what it takes. Having pest issues? Don’t think twice about contacting him; you’ll be glad you did.
Raymond Balestino · November 2022 Read on Google →
General pest & rodent control
Pest Shield’s approach to tick control starts with a free property inspection — walking the lot to identify where tick pressure is concentrated. That typically means yard edges, leaf litter accumulation, grass-to-woods transitions, and any areas with regular deer movement. The inspection shapes the treatment: rather than applying product uniformly across the property, the focus goes where ticks actually live and quest for hosts.
Treatment is exterior-focused by design. Pest Shield’s perimeter approach keeps chemical application outside and away from living spaces — targeting the habitat zones where ticks concentrate rather than treating interior areas that don’t need it. This is the same methodology that covers the full property: yard edges, border vegetation, and transition zones get treated; the inside of the home stays clean. For Woodsboro properties with wooded lot lines or field adjacency, that means paying particular attention to the margins where tick activity is highest.
Tick control is included in Pest Shield’s Standard Care Plan — the same recurring exterior treatment program that covers ants, spiders, stink bugs, crickets, and other general pest pressure. The plan runs on a 60-day bi-monthly cadence, which is more frequent than the industry-standard quarterly schedule and better aligned with Maryland’s seasonal pest cycles. The plan carries a 100% effective guarantee: if tick activity reappears between scheduled visits, Pest Shield returns at no additional charge. You don’t need to be home for treatment — the exterior-focused approach means the work gets done without requiring you to rearrange your schedule.
The products Pest Shield uses are EPA-approved, and bio-pesticide options are available for households with children and pets. The exterior-first application method keeps treated areas outside, where they’re most effective and least intrusive. Troy will walk you through what was applied and what to expect before leaving the property.
Owner
Founded Pest Shield in 2011 after years as a pest management contractor on U.S. military bases in Iraq and Afghanistan. Around 35 years in pest management. Personally handles or leads the majority of service calls.
Pest Management Specialist
Field technician handling residential and commercial service calls across Frederick, Carroll, and Montgomery counties.
Pest Management Specialist
Field technician handling residential and commercial service calls across the service area.
Our Entomologist
Consulting entomologist on species identification, conducive conditions, and treatment strategy for difficult cases.
Woodsboro is a small community in eastern Frederick County, situated along MD Route 194 between Walkersville and Taneytown. The surrounding landscape is predominantly agricultural — grain fields, pasture, and wooded fence lines that connect larger forest tracts. Pest Shield operates out of Mt. Airy and serves the full Frederick County service area, including Woodsboro, Walkersville, New Market, and Urbana, with direct dispatch — no call center routing to a regional office.
The farmland and woodlot edges surrounding Woodsboro support some of the highest deer densities in Frederick County, and deer movement across property lines is the primary driver of black-legged tick pressure in this area. Homeowners with maintained lawns that border crop fields or hedgerows are exposed to tick activity regardless of how their own property is managed. This is the specific habitat dynamic that makes pest control in Woodsboro a different calculation than in more suburban parts of the county.
Yes. Pest Shield uses EPA-approved products and applies them using an exterior-first approach — treatment stays outside, targeting the yard edges and habitat zones where ticks concentrate, not interior living spaces. Bio-pesticide options are available for households with children and pets. Troy will confirm which products are being used at your property and what, if any, brief precautions apply after treatment.
A single treatment will knock down active tick populations, but ticks in rural Frederick County aren’t a one-season problem — black-legged ticks have a two-year life cycle with activity in spring, summer, and fall, and new ticks are continuously introduced by deer moving through the area. Pest Shield’s Standard Care Plan addresses this with treatment every 60 days, a 100% effective guarantee, and free retreatment if activity reappears between scheduled visits. Most customers in rural settings find that ongoing protection is what actually keeps tick pressure manageable season to season.
Tick activity in Maryland runs longer than most people expect. Black-legged tick nymphs — the stage most likely to transmit Lyme disease — are active from late spring through summer. Adults are active in fall and again in early spring, including on mild winter days. Mosquito control follows a similar seasonal pattern, and American dog ticks peak in spring and early summer. The practical answer is that there’s no single “tick season” in Frederick County — treatment timed to late spring is a reasonable starting point, but the 60-day Standard Care Plan cadence is designed to maintain coverage across the full active period rather than relying on a single annual application.
The Standard Care Plan covers recurring exterior treatment every 60 days — more frequent than the industry-standard quarterly schedule — and includes ticks along with ants, spiders, stink bugs, crickets, and other general pest pressure. The 100% effective guarantee means that if pest activity reappears between your scheduled visits, Pest Shield returns and retreats at no additional charge. You don’t need to be home for the scheduled treatments. The plan is offered when it genuinely fits the situation — Troy will tell you if a one-time treatment is all you need.
Same-day and next-day service is the norm across Pest Shield’s Frederick County coverage area, including Woodsboro. For situations where tick activity is an immediate concern — particularly households with young children or family members with known tick-bite sensitivity — call (301) 829-0060 directly and describe the situation. Because treatment is exterior-focused, you don’t need to be home for scheduled visits under the Standard Care Plan. For the initial inspection, having someone present is helpful so Troy can walk the property and discuss what he finds.
