If they are extracting from trim and other low-value parts of the plant, yeah that is a possibility. Myclobutanil has a boiling point around 200 C, THC around 1

If they are extracting from trim and other low-value parts of the plant, yeah that is a possibility. Myclobutanil has a boiling point around 200 C, THC around 155 C. They have similar hydrophobic nature. So any extraction process favoring THC will also likely partition myclo. If you are making concentrate from buds, this isn't an issue, as your ratio of active components to pesticide is going to be similar. However if you are extracting low-density plant matter, your ratio of myclo to actives will be higher. However, the highest number I've seen reported was just shy of 1 ppm myclobutanil. Not great, but that's still pretty low. https://www.thestranger.com/slog/2018/12/20/37272899/no-one-will-take-responsibility-for-this-pesticide-ridden-vape-cartridge https://www.thestranger.com/slog/2018/12/20/37272899/no-one-...