Maximum Yield Cannabis Canada January/February 2023 | страница 40

IDENTIFYING AND DEALING WITH

ALTERNARIA

ON CANNABIS PLANTS

Difficult to diagnose , Alternaria is a nasty fungal pathogen when it gets into a cannabis crop . It ’ s very difficult to treat and some forms can kill a plant or entire crop within hours . Preventing Alternaria is a grower ’ s best defence but some treatments will work as well .
by Chris Bond

Alternaria is one of the most common genera of fungal pathogens that affect cannabis crops , as well as numerous other agricultural and ornamental crops around the world . Some estimates place Alternaria as responsible for as much as 20 percent of all agricultural crop losses due to disease . Because it can travel via several modes , Alternaria can very easily prey upon your cannabis plants . It can be airborne , be introduced to crops through infected soil , or be carried in water via irrigation , splashed onto leaves or soil and spread from plant to plant .

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