STATE LICENSE
ConditionalDelaware Department of Agriculture — Pest…
Applying pesticides — including herbicides — to the land of another as a business requires a Delaware Department of Agriculture pesticide business license, and the business must be or employ a certified applicator at all times (3 Del. C. § 1206(a)). The Department says this applies to general-use as well as restricted-use products. Landscapers certify in the Ornamental and Turf category (03) by passing exams at 70%; the business license is $50 a year (or $100 biennially), applicator certification is $30 a year, and the business must carry $300,000 bodily injury and $100,000 property damage coverage (3 DE Admin. Code 601). Unlicensed employees who handle pesticides must be registered ($25) and trained.
Separately, applying fertilizer or other nutrients to more than ¼ acre (10,890 sq ft) of turf as a commercial venture for another requires certification by the Delaware Nutrient Management Commission, or use of a certified person or firm (3 Del. C. § 2241(a)(3)), and turf nitrogen is capped at 4.8 pounds per 1,000 sq ft per year absent a plan (§ 2250(b)). Hardscape, walls, and other improvements to real property make the business a 'contractor' needing the $75 Division of Revenue contractor license (30 Del. C. § 2502).
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
Pesticide licensing, applicator certification, and nutrient certification are state programs run by the Department of Agriculture and the Nutrient Management Commission. Counties and municipalities issue permits for walls, grading, and other construction and may require local business licenses; the Division of Revenue contractor license covers construction work statewide.
The local offices section below names the exact permit desk for every Delaware county on file.
Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.
Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
The Department of Agriculture says anyone in the business of applying restricted or general-use pesticides to another's property must be certified and hold a Pesticide Business License.
The two-year experience requirement for the business's certified applicator does not bind turf and ornamental applicants; § 1211 directs the Department to exempt them.
Pest control business license numbers, 2–6 inches high, and the business name must appear on service vehicles (3 DE Admin. Code 601-5.5).
A practical sequence for a new landscaping contractor in Delaware. Actual agency processing times are noted in the ledger above.
Each item names the issuing authority, cycle, and citation.
Statutory consequences with their citations — not estimates, not “commonly cited” guesses.
Engaging in the business of applying a pesticide on the lands of another without a Department license.
Applying pesticides for hire without the required insurance or bond.
False promises, misstatements, or failing to apply a homeowner's money to the job.
Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.
Every fact in this file was checked against these official sources on October 2026.
Pending verification: Nutrient Management Commission certification fee, exam, and continuing education requirements for commercial turf applicators (regulations not retrieved) · Whether routine mowing and garden maintenance is classified by the Division of Revenue as 'contractor' work under 30 Del. C. § 2501 or under another business license category · Whether the Department has adopted by regulation the turf/ornamental exemption from the two-year experience requirement that 3 Del. C. § 1211 calls for (rule 601-5.4 applies the experience requirement only to categories 7A–7C) · Whether landscape irrigation tie-ins or backflow devices require a master plumber license
General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.
Store licenses, permits, policies, and renewal dates in one place.