Powdery Mildew Testing

Powdery Mildew is very difficult to control and eliminate especially in a greenhouse or indoor cultivation area once an infection has been established. Its spores from an infected plant may spread in air currents to easily infect plants nearby and further away. Detection of Powdery Mildew early in its lifecycle before the production of spores may be one of the best preventive measures to limit and contain the spread of the pathogen.

What is Powdery Mildew?

White powdery mildew is an obligate parasite fungus frequently found on cannabis plants. It spreads through spores on the wind, air ventilation systems, and contact with animals, including humans. It can also spread through plant-to-plant contact.

Powdery Mildew Symptoms and Signs

Powdery Mildew is an obligate biotrophic fungus characterized by white, flour-like spots on the tops of cannabis leaves. These can take the form of several large spots or a thin, fine fuzzy film. Infections would lead to reduced plant growth and flower harvests.

How Can You Manage/Prevent Powdery Mildew?

  • Ensure proper humidity control and airflow
  • Filter incoming air to limit spread of the spores
  • Sterilize all pots, equipment and tools while maintaining a clean working environment
  • Regularly test all starter clones until maturity and stored germplasms

Start Testing Today!

Even after treatment, there is a strong likelihood that the spores are still around. Many more of your plants may be infected, and the only way to know for sure is to have your plants routinely tested.

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