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Hydromulch is a wet mixture of 40 percent shredded wood and 60 percent paper with a guar gum-based tackifier, a sticky substance that helps the mulch material cling to hillsides and steep slopes. Guar ...

Boulder County is getting ready to spray hydromulch on properties burned in the Marshall Fire. The goal is to help prevent toxic ash and dust from getting airborne.

Agricultural engineers have developed the erosion control industry's first cotton hydromulch "spray-on blanket." Hydromulch is the bright-green mulch used in spray-on slurries that cover bare lands at ...

Boulder County will begin hydromulch work on homes affected by the Marshall Fire this week. According to a press release from the county, the hydromulching process will start in burned areas with the ...