Tag Archives: oxalis

Five Reasons Why it’s Okay to Love Oxalis

Posted on March 8, 2023 by SF Forest Alliance

This is an updated reprint of a May 2015 article. As of 2023, eight years later, Natural Areas (now called “Natural Resource Areas”) are still being sprayed with powerful pesticides against oxalis. It’s still futile. ************** Five Reasons it’s Okay … Continue reading →

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Oxalis and the Herbicide “solution”

Posted on February 28, 2023 by SF Forest Alliance

This article is republished with permission from Conservation Sense and Nonsense, an environmental blog focused on the San Francisco Bay Area.   THE OXALIS OBSESSION As a long-time reader of Jake Sigg’s Nature News, I am very familiar with his … Continue reading →

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Toxic Pesticides in Glen Canyon Park

Posted on February 3, 2023 by SF Forest Alliance

It’s pesticide season in Glen Canyon Park, with one of the most toxic pesticides in use: Triclopyr. (This is the one that’s brand-named Vastlan.) The target plants are oxalis, as usual! And a new one – Sheep Sorrel. It’s actually … Continue reading →

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Toxic Herbicide on Mt Davidson – Triclopyr on Oxalis

Posted on February 18, 2021 by SF Forest Alliance

In June 2020, we reported that SFRPD was using a new version of an old toxic pesticide: Vastlan, with the active ingredient Triclopyr. (The same as in Garlon, which was the single most toxic herbicide they used.) Neighbor and videographer … Continue reading →

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Garlon v. Oxalis – in 10 Easy Slides

Posted on March 7, 2017 by SF Forest Alliance

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Mt Davidson: Toxic Garlon, Felled Trees

Posted on February 10, 2017 by SF Forest Alliance

On a recent trip to Mount Davidson, a visitor saw that Garlon had been sprayed on oxalis. The Natural Resources Department (NRD, formerly Natural Areas Program) is the most frequent user of pesticides in San Francisco Recreation and Parks Department … Continue reading →

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San Francisco RPD Map of Responsibility Areas for Pesticides (and Unrecorded Spraying)

Posted on March 17, 2016 by SF Forest Alliance

If you’ve every wondered – as we have – which section a particular playground or park falls under, this map will help. This also determines who within San Francisco Recreation and Parks Department (SFRPD) is responsible for pesticide use in … Continue reading →

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San Francisco Herbicides 2015: Why Better Isn’t Good Enough

Posted on January 15, 2016 by SF Forest Alliance

We have some nearly good news. After years of increasing pesticide until 2014, the 2015 data shows Natural Areas Program (NAP) again used less herbicides than in the year before – though they applied it more often. The volume of … Continue reading →

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Five Reasons it’s Okay to Love Oxalis – and Stop Poisoning It

Posted on May 11, 2015 by SF Forest Alliance

The oxalis season is over, and the perky yellow flowers have vanished for another year. These Bermuda buttercups will be back next year to herald the spring, bringing joy to those who love them, irritation to those who hate them, … Continue reading →

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