Pick a Winner
Choose a cannabis strain that easily adapts to your growing environment. It is better to avoid delicate varieties to achieve diversity than to end up with unhealthy plants.
Yeast and mold are responsible for most microbial testing failures of cannabis strains. Fungi typically grows in damp or humid areas, and in pools of water, and can be spread through spores in the air or by touch. Most growers find the best defense is to create and maintain clean air circulation, with HEPA or filtered HVAC systems, to keep mold spores below contamination causing thresholds.
Easy Does It on the Nutrients
Dense vegetative growth from the overuse of nitrogen fertilizers creates soft plant tissue that is more susceptible to pest and fungal diseases.
Growing large amounts of cannabis indoors elevates humidity levels. While cannabis thrives in 80% to 100% humidity immediately after clone cutting, and in 65% to 70% humidity during the vegetative stage, humidity over 50% is dangerous to flowers during the bloom cycle.
Indoor humidity levels can be controlled using a dehumidifier or high powered exhaust fan controlled by a built-in humidistat or stand-alone atmospheric controller.
Waterlogged soil can take days, if not an entire week, to dry. Drenched soil drowns the root zone, depleting it of oxygen.