Specifications include, but are not limited to: Securing a Contractor to apply a certain insecticide (to wit: Vectobac 12 AS — Active ingredient: Bacillus thuringiensis var. israelensis) by aerial application to control black flies in or about the Potomac River area of Washington County, Maryland. The Contractor shall apply this insecticide three (3) times at ten (10) separate locations that MDA has designated in this area in the summer of 2019, and once in the same locations in May or June of 2020. The Contractor shall be ready to proceed beginning on or about July 1, 2019. MDA shall determine the timing of these applications. The first shall take place on or about July 1, 2019 (the second application shall take place approximately one (1) month later; and the third shall take place approximately one (1) month after the second application; the fourth shall take place in May or June of 2020). MDA shall provide the Contractor no less than five (5) days’ notice before the actual date on which the Contractor is expected to begin spray operations. MDA will purchase the insecticide and have it delivered to a location designated by the Contractor.