Around Maryland
Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.
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Local spider information
Spider control in Maryland
Learn what to look for around your property, explore your city, and ask about an inspection or a quote.
Spiders in Maryland: what to know
What to note
Where you see spiders, how long it has been going on, and anything you’ve already tried are the most useful details to mention.
A useful next step
Ask about an inspection, what treatment would involve, and whether follow-up visits are included. You don’t need to identify the problem yourself before getting in touch.
Local research
Spiders in Maryland: what the public record shows
Before you compare quotes, it helps to know which spiders actually live in Maryland, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.
Spider species recorded in Maryland
- Joro spider (Trichonephila clavata) — 'Established in Georgia, North Carolina, South Carolina, Tennessee, Alabama, and spreading to adjacent regions. There are also isolated populations found in Maryland, Virginia,…
When spiders are busiest in Maryland
Joro adults late summer through October.
'Isolated populations found in Maryland' (UGA).
For context, nationally
Sources: CDC/NIOSH; Joro Spider: Trichonephila clavata (Circular 1273). Figures are quoted as the source prints them. How we check our sources
Explore Maryland cities
Annapolis
Humid Subtropical · urban setting
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Baltimore
Humid Subtropical · urban setting
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Bethesda
Humid Subtropical · urban setting
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Bowie
Humid Subtropical · suburban setting
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Catonsville
Humid Subtropical · suburban setting
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Columbia
Humid Subtropical · suburban setting
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Frederick
Humid Subtropical · urban setting
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Gaithersburg
Humid Subtropical · suburban setting
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Germantown
Humid Subtropical · suburban setting
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Glen Burnie
Humid Subtropical · suburban setting
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Hagerstown
Humid Subtropical · suburban setting
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Laurel
Humid Subtropical · suburban setting
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Rockville
Humid Subtropical · urban setting
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Salisbury
Humid Subtropical · suburban setting
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Silver Spring
Humid Subtropical · urban setting
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Waldorf
Humid Subtropical · suburban setting
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Towson
Humid Subtropical · urban setting
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