This week, the week of September 16th through September 20th, 10 traps were placed at various locations throughout the city. Approximately 120 mosquitoes were shipped to DSHS for arbovirus testing. We are starting to note lower trap counts as the night time temperatures start to drop.
We were again notified by the DSHS that a trap that was placed in the 75074 zip code came back positive for WNV. This marks the 5th positive mosquito sample this season. We sprayed the area where the mosquito was isolated as well as the Balloon Festival areas in accordance with our Integrated Mosquito Management Plan this previous Tuesday. We were also notified by Collin County that a 4th human case, within the 75025 zip code, has come back positive in Plano. All human cases to date have been the less dangerous fever form of the virus. Please check the website for further information like the spray map as well as the FAQ’s that are posted and if you have any further questions, don’t hesitate to call the Environmental Health Department. We do again want to remind everyone that if your area is due to be sprayed, you can opt out of the spraying by calling the Health Dept. We are continuing our habitat and larval assessments throughout the City of Plano.
With the numbers that we are currently trapping and the time of year that we are actually isolating WNV is more in line with what we would still consider a normal WNV “season”. At this point, we are planning on doing continual surveillance, larviciding and habitat assessment into October. Once nighttime temperatures are consistently in the 60’s, the mosquito populations start to slow down. Once temperatures start to reach into the 50’s consistently, mosquitos will go into a sleep mode and begin their over-wintering process.
Please keep an eye out around your house to minimize mosquito habitat and breeding. With everyone’s help, we can continue to keep down not only mosquito numbers, but WNV as well!
- Always remember the 4 D’s!
- Dawn and Dusk