By 2020, the United States greenhouse industry is expected to grow to $4 billion thanks to the demand for more indoor production. The demand is driven by limited labor, land, and water, as well as the need to produce more for less, which means operating costs are on the top of growers’ minds.
What goes on above the soil line often is a reflection of what’s happening underground. If you observe wilting, drooping leaves on a cannabis plant, look to the roots: You may be witnessing the beginnings of “root rot.”
Root rot can be caused by a range of factors, including various types of bacteria, fungi, algae, and parasitic oomycetes. These organisms may act on the plant in different ways, but the outcome is usually the same: slimy or mushy roots that twist together, impeding healthy plant development.