RE:RE:RE:RE:RE:RE:RE:RE:RE:Canopy shutdownThe Houwelings are Pro-Horticulturists. OMRI Certified Pest Solutions and Biologic Pest Control work best in large Greenhouses. Should a need exist to clean up "residue" ( which is not an issue at all with Delta I), good off-the-shelf solutions exist which sequester and deactivate chemicals with a 15 minute contact time frame. I use "Monterey" to clean my spray equipment when switching from field to greenhouse. This is a non-issue. Trust the farmers and give us all a chance to grow to the Sun. Best wishes to all valid long investors!