If you’d bothered to click on one of the links, you would have found out. It’s right there.
CheckMate-F, a close predecessor to Checkmate OLF-F, which has been sprayed over Monterey and Santa Cruz counties.
... The CDFA has been given permission and funding through Homeland Security to spray the pesticide on private property without consent by owners.
The USDA and CDFA are promoting Checkmate as a harmless pheromone. But not only is it a synthetic pheromone, it includes a long list of "inert" ingredients that are toxic to humans and animals. The pesticide is enclosed in time-released plastic microcapsules, small enough to be inhaled and become lodged in the lungs.
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Homeland Security???
Since you know so much, why don’t you tell me?
BTW, this is just hysteria from the usual loons in San Francisco. I’ve lived in the Central Valley and can’t imagine similar reactions there.