The City of Longmont, in consultation with the Boulder County Public Health, is discontinuing Mosquito Spraying for the remainder of the year.
Trapping has shown a reduction in the mosquito population. In addition, most eggs have likely been washed to the east via flood waters and future cold weather will impact their reproduction and viability.
UPDATE: However, residents should continue to practice the 4 D's to protect themselves from the risk of West Nile Virus.
Below is a picture of the life cycle from Purdue University.
Colorado Mosquito Control has an informative link for mosquitoes in our area.
http://www.comosquitocontrol.com/Mosquito_Biology.html
http://extension.entm.purdue.edu/publichealth/resources.html