Mosquito control treatment scheduled for Spring City Borough

[Note: as on all spraying events residents of the affected area please see Don’t Spray Me! needs your help when spraying occurs.]

Press release, Chesco Health Department, Sep 21, 2017

West Chester, PA – The Chester County Health Department will conduct a mosquito control treatment spray in portions of Spring City Borough (map of treatment area). The treatment is scheduled for Monday, September 25th from 7:15 pm to 10:15 pm. The rain date for this event is Tuesday, September 26th from 7:15 pm to 10:15 pm.

The Chester County Health Department conducts mosquito control treatment in areas with high levels of mosquito activity and where multiple mosquito samples have tested positive for West Nile Virus (WNV). After exhausting all other available mosquito control strategies, spraying is conducted to reduce residents’ risk of WNV infection….

To read more, download the full release at Chesco Health Department or here: 15_2017_WNV_SpringCitySpray

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Photos from the DSM / Sierra Club / Food Co-op picnic 9/3/17

The triply sponsored picnic was well attended with about 75 people in all, and weather improved for us during the day. A good time for community sharing by people concerned about environment and human wellness. Here are some representative photos of the event.


Suzanne Adams speaks for West Chester Food Co-op. Photo by Dianne Herrin


Assorted signs on display. Photo by Dianne Herrin


Tim Niiler demonstrates Tai Chi. Photo by Dianne Herrin


Pete Lane sings his “Please don’t you spray on me” song, Nathaniel Smith holds mike. Photo by Dianne Herrin

Children enjoying frozen yogurt courtesy of Whirled Peace. Photo by Dianne Herrin

“Mosquito control treatment scheduled for East Bradford Township to prevent West Nile Virus”

[Note: as on all spraying events residents of the affected area please see Don’t Spray Me! needs your help when spraying occurs. Above is the County’s title. Can anyone explain to us how one treatment can “prevent” a virus?]

Press release, Chesco Health Department, Sep 5, 2017 3:52 PM

West Chester, PA – The Chester County Health Department will conduct a mosquito control treatment spray in portions of East Bradford Township (map of treatment area). The treatment is scheduled for Thursday, September 7th from 7:45 pm to 11:00 pm. The rain date for this event is Tuesday, September 12th from 7:45 pm to 11:00 pm.

The Chester County Health Department conducts mosquito control treatment in areas with high levels of mosquito activity and where multiple mosquito samples have tested positive for West Nile Virus (WNV). After exhausting all other available mosquito control strategies, spraying is conducted to reduce residents’ risk of WNV infection. Anyone living in an area where mosquitoes are infected with WNV is at risk, but the risk of infection is highest for people who work outside or participate in outdoor activities. Less than 1% of people infected will develop serious illness. While serious illness can occur in people of any age, people over 60 years of age, people who have received organ transplants, and people with certain medical conditions such as cancer, diabetes, hypertension, and kidney disease are at the greatest risk for serious illness.

The Chester County Health Department uses a truck-mounted sprayer to apply .66 ounces of U.S. Environmental Protection Agency-approved product (DeltaGard) per acre of land. The mosquito control spray becomes inactive in just a few hours or with sunshine. Sprays are conducted after sunset, when mosquitoes are most active and bees have returned to their hives. Sprayers are turned off near bodies of water and apiaries to protect aquatic life and bees. The Chester County Health Department also notifies registered beekeepers and residents who are listed as hypersensitive in a designated spray area prior to conducting a spray. People who are concerned about exposure to mosquito control products can reduce their potential for exposure by staying indoors with children and pets when their neighborhood is being sprayed. If you would like to take extra precautions after the spray is completed, you can rinse off outdoor furniture or playground equipment before use.

Although spraying helps to reduce mosquito populations, the Chester County Health Department encourages residents to “Make You and Your Home a Bite-Free Zone” to prevent WNV and other mosquito-borne diseases. Because mosquito-borne diseases are spread through the bite of an infected mosquito, residents can reduce their risk by using insect repellent and other personal protection and getting rid of standing water on their property….

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Don’t Spray Me! needs your help when spraying occurs

Whenever the Chesco Health Department plans a spraying event, the least we can do is observe to be sure applicable procedures are scrupulously followed. Per agreement earlier in 2017, the Health Department now gives 48 hours notice before spraying. We encourage you to Sign up for the Health Department mailing list so you will get the maximum warning.

Anyone in a spray area, please try to observe (without exposing yourself directly to spray) and let us know:

• The release says “After exhausting all other available mosquito control strategies…” Do you know of other such strategies to date in your locality, such as working with the municipal government to educate residents, larviciding suspect bodies of standing water, or alerting property owners whose properties may be violating the Health Department’s regulation against allowing mosquitoes to breed in standing water?

• Are adequate warnings posted on streets well in advance so residents and visitors will know to stay out of the way of the spray and take protective measures?

• Did you observe people who were not aware of the recommended precautions (such as joggers entering the area during or right after spraying)?

• Is there a lead truck with a loud speaker in front of the spray truck warning people to stay indoors or leave the vicinity?

• Does the truck spray more than once in any street or on any area? Does it crisscross any area, thus delivering a double dose to some addresses?

• Is the spray shut off as the truck approaches a stream or body of water and if so, how many feet away?

• In the days after spraying, what difference do you notice in the number of mosquitoes and other insects such as honey bees and dragonflies?

• Did you notice any effect, either immediate or after a few days, on children, cats, frogs, birds, fish, or bats? Please try to video or photograph any evidence.

• How long does it take for the adult mosquito population to get back to about what it was before?

DSM needs you to help protect people and the environment and to let public officials know what you think.

Please also note these precautionary measures:

Spraying always occurs in the evening because bees are less active then and, if they know what is good for them, return to their hives (for what happens when spray is not scheduled properly see here). Beekeepers who have hives in the spray area need to take protective measures.

During the spraying (and ideally till the next day) residents should shut windows and close off all ways that outside air can enter their house. Cats should be brought inside, as they are sensitive to the pesticide used. The next day any outdoor play equipment should be hosed or wiped off before children come in contact with it.

People who have a high level of chemical sensitivity may wish to plan an absence overnight or longer.