Epi Week #33 - 2017 General Statements

We have now had 150 WNV-positive mosquito pools, with WNV activity in every single mainland county in the state. There are a total of 105 towns and cities in 11 counties at MODERATE risk for WNV. Though increased sampling in Franklin County bumped up the numbers higher than they would be normally, we are definitely seeing a high amount of WNV activity statewide. It remains to be seen whether a dry August and cooler nighttime temperatures give us a reprieve over the next week or two. EEEv activity remains low.

Weather

Precipitation was limited again this past week, with most of the state receiving less than an inch of rain (with the exception northern Berkshire and western Franklin Counties, and a wallop of storm on Cape Cod that left in excess of 5 inches of rain in some towns).

As this report goes to press, we are ending another week of hot, sunny days that have been bookended by surprisingly cool nighttime temperatures. Expect almost fall-like temperatures for Epi Week 35, with nighttime cooldowns that will have some Projects thinking about the end of the spray season.