Pathogens are organisms that cause irritation, such as viruses, bacteria, fungi, parasitic plants, and nematodes.

The pathogenic spores germinate and penetrate the plant, through the stomata, occupying and developing the mycelium that finally damages the Cannabis and inhibits the plants' growth.

Pathogenic diseases that affect cannabis cultures

How does it happen?
What are the consequences?

Cannabis plants are highly susceptible to fungi diseases and the effects can be devastating. In a greenhouse environment, humidity can cause the development of various pathogenic diseases such as Grey mold

(Botrytis) and Mildew.

Botrytis or Gray Mold are fungi that affect more than 220 species of plants, including Cannabis. Actually, it is probably the most common fungi in Cannabis crops, either indoors, outdoors or in a greenhouse.

What are the consequences?

Farmers’ average loss ranges from 18% to 22% due to pathogenic diseases during the growing period, and 13% to 16% in the post-harvest period.   

Cannabis growers must protect their financial bottom lines. Botrytis, Mildew and Molds are serious threats to high yields. This can be solved and the wellness of the plant’s environment can be enhanced using Econabis probiotics.


Any part of the plant can be infected by Botrytis: roots, stems, leaves, etc. The first visible symptom is a change in the color and texture of the plant. Leaves develop necrosis and dry out very fast. Stems become fragile, brown and ulcerated.


But the most common place to find this fungus is in the buds. They become pale-grey, dry out and develop a cotton-like substance in the interior part.


Botrytis tends to set it at the base of the stem, making it often hard to detect. Usually, the first signs seen by the grower are when the small leaves of the kolas begin to wither, discolor, and dry out. Upon closer inspection, you may notice fluff growing amongst buds and bud sites, usually grey, blue-green, or white in color. Depending on conditions, this will either cause the bud to dry out completely and crumble when touched (in low humidity), or turn into a decomposing sludge (in high humidity).


When Botrytis reaches advanced stages, you may notice little black specks appear in the mold. These are spores the mold is creating, ready to spread itself to other plants. They can be transported in the slightest breeze. Things are truly dire if you see this. Do not breath these spores in, or allow them anywhere near other plants.

Powdery mildew can be detected by the white-coating on leaves and shoot tips, which succumb to the infestation by atrophy and eventually die. Only the surface of the leaves is contaminated by the fungus. Very heavily infested plants often cannot be saved. Plants affected by this disease and wilting plants should be removed from the garden if you don't want the spores to spread.

You will know you have powdery mildew when you notice fuzzy, flour-like circular patches on your marijuana plants’ leaves. You might see leaves that look spotted, mottled, and wilting. The powdery mildew infection will quickly spread to surrounding leaves and will “eat” everything in its path.

Powdery mildew is quite recognizable, given its stark white in contrast with the green leaves.

Econabis your plants and relax...

The moment the probiotics are gone, opportunistic parasites, fungi and harmful bacteria rush in to fill the ecological void!