Outdoor drums, tubs, buckets and small containers were found to account for over 90% of all Aedes aegypti pupae.

We have the same problem with West Nile Virus (WNV) around the Great Lakes, wwh, borne by some exotic strain of mosquito.

Larvicides are used in the early Spring before the larvae hatch.

Crows are the 'canaries in the mines' of WNS.

When the crows start dropping, the larvacide is never far behind.