On the Shape and Design of Mosquito Abatement Districts

■161

Figure 8.1: Aerial spraying occurred in four areas of Rhode Island [3].

a total of 556 gallons across 115,179 total acres – meaning that 6/10 of an ounce,

aerosolized, was used to treat an acre. That’s the equivalent of slightly less than

four teaspoons per acre. In Figure 8.1 notes that Regions 1 and 2 are nearly convex,

whereas Regions 3 and 4 are not.

• Wednesday, September 25, 2019

A second aerial spraying application was held on September 25 to control adult

mosquitos in two areas of Rhode Island assessed at a critical risk for the EEE virus.

The areas were identified using several factors, including information about new

human cases of EEE, cases of EEE in non-human mammals, positive mosquito sam-

ples in Rhode Island and in neighboring states, and information about the habitats in

which mosquitos most readily breed.

8.2.1.2

Mosquito Control Measures: 2019 Pesticide Applications

In 2019, aerial spraying occurred in four areas of Rhode Island that state officials as-

sessed to be at critical risk for the Eastern Equine Encephalitis (EEE) virus.