Tag Archives: toxic

Alternative lawn signs for Mosquito Shield

Mosquito Shield is just one of dozens of companies that spray pyrethroids to kill mosquitoes. Homeowners typically pay $800 per summer for treatments spaced every 21 days and, as part of the deal, agree to feature a sign in their yard for the season.

Two types of people have these yard signs. The main category is homeowners who fully understand that pesticides have bad environmental effects but who simply don’t care. These are likely the same people who knowingly drive with their high beams on at night (“It’s safer for ME!”). And then there are people who were duped by the pesticide companies into believing pyrethroids kill only mosquitoes.

To better reach this second type of person as well as those who are interested in mosquito sprays but are still on the fence, I’ve fabricated six signs that highlight the fact that pyrethroids kill other animals:

All the signs are fairly self-explanatory except for perhaps the Bird Shield one. Pyrethroids don’t kill birds directly but many species depend on insects and spiders to feed themselves and their young. So when you hire Mosquito Shield to nuke your yard every three weeks you are reducing the numbers of birds that can survive in an area.

I realize that none of the above signs is going to be used by an actual pesticide company. Their business model is to obfuscate about the effects of pyrethroids. Indeed, most companies try to hide the fact that their mosquito sprays even contain pesticides. That’s why the government (federal and/or state) should require companies to clearly indicate the active ingredient of the spray. Here’s how it could (should) look, thus allowing curious neighbors to Google the chemical and be horrified.

Pyrethroid sign for Mosquito Shield

If you are an influential part of a local government, please consider enacting an ordinance that requires disclosure of the pesticide name on signs.

If you need an individual sign for your a presentation, here are some image files: fireflies, butterflies, bees, spiders, fish, birds.

Please share this page on your neighborhood social media to get the word out. These companies are spreading in popularity and it’s horrifying.

More details here.

Serpentine!

Photographs from some local serpentine barrens — areas that are naturally toxic due to the magnesium, cobalt, nickel, chromium, asbestos, other nasties leaching out from the green serpentine rocks (California’s state rock). Serpentine soil is also famously low in phosphorous and potassium, so not many plants can grow on it.  Here’s a typical patch of rock (from Nottingham pine barrens in Pennsylvania):

At the Nottingham serpentine barrens in Chester County.

Below is a close-up of the rocks themselves.  I liked the central rock because of its serpentine (wavy, snakelike) marbling. From Pink Hill barrens at the Tyler Arboretum in Media, Pennsylvania.

Here’s a view of a serpentine barrens at Nottingham barrens.  If you were to take a close look at these pines, a lot of them have scorched bark from a recent prescribed burn that was conducted to restore native plants to the area.

At the Nottingham serpentine barrens in Chester County.

The flower below is moss phlox (Phlox subulata) at Pink Hill.  The plant is absolutely adorable.  I’m a sucker for any plant that assumes a moss-like habit.

Colin Purrington Photography: Tyler Arboretum &emdash; Moss phlox (Phlox subulata).

Below is a close-up of some sort of sedge, possibly Pennsylvania sedge (Carex pensylvanica), but I didn’t have any fruit so I can’t be sure (tentative ID courtesy Dr Roger Latham of Dr Roger Latham at Continental Conservation).  But I’m positive it’s adorable, though not mossy in habit.  Photograph also from Pink Hill barrens.

Richardson's sedge (Carex richardsonii), I think. Happy to be corrected.

More serpentine photographs here.