Wissahickon Closed For Mosquito Spraying; West Nile Fears a Catalyst
The spraying was done Monday.
The Wissahickon Valley Park was closed Monday for mosquito-related spraying as work was done to try and prevent the insects from spreading.
The city Department of Public Health's Vector Control staff did the work. Here's what the department said before the spraying:
The treatments will be administered via a truck-mounted machine that sprays fine aerosol droplets. The mist stays aloft and kills mosquitoes on contact. The truck-mounted operation will spray Anvil 10-10, a synthetic pyrethroid, a product that has no residual effects, and evaporates quickly into the atmosphere. The synthetic pyrethoid, derived from the chrysanthemum flower, has no ill effects on human health.
The area where the spraying was done could contain mosquitoes that have the West Nile Virus.
Spraying was done in the area bounded by Northwestern Avenue, Germantown Avenue, Henry Avenue and Livezey Lane. It necessitated the park's closure.