Rainbow Technology Corporation introduces a new entry in its line of Weed Killer products: Rainbow® Johnson Grass & Weed Killer Foam. This spray foams on contact, allowing you to see exactly where it’s applied while reaching weeds and grasses in the most hard-to-reach places. This effective formula kills weeds and grasses down to the root and becomes waterproof and rainproof 10 minutes after application. Rainbow® Johnson Grass & Weed Killer Foam is perfect for targeting weeds around sensitive utility equipment without killing surrounding plants or grass. Can be used and offered for sale in the State of California.