Cannabis is an herbaceous flowering plant containing over 100 cannabinoids, terpenes, flavonoids, glycosides, amines, alkaloids, and other compounds. The cannabis Sativa variety has been cultivated since ancient times to treat diseases ranging from anxiety to insomnia.
However, some strains of cannabis can cause skin irritation, especially for those who are allergic to certain ingredients or components of the plant.
Powdery mildew is a fungal disease causing unsightly white powder on leaves, stems, buds, or flowers of plants. Although it does not pose severe threats to humans or animals, it can affect the quality and yield of crops.
There are two types of mildew: Aspergillus (spores) and Botrytis (conidia). Aspergillus spores enter through wounds such as scratches, cuts, or insect bites. They can also penetrate through the stomata into the plant tissue. If left untreated, mildew can spread rapidly to cover the entire plant. This leads to lower yields and quality.
On the other hand, Botrytis conidia can float around in the air through rain or wind. These tiny spores are ubiquitous and can easily pass between plants.
Cannabis comes in many forms – flowers, edibles, vapes, concentrates, oils, topicals, and tinctures. All these various types have their distinct characteristics and requirements. However, one thing they do share is the need for good air circulation. Powdery mildew is a fungal disease caused by Aspergillus sp. fungi. It occurs when mold spores get onto the buds due to inadequate ventilation.
These mold spores then infect the buds once they break down, leading to symptoms that include white fuzzy spots covering the buds. Buds become misshapen and eventually die off. Powdery mildew grows best at temperatures between 80-90 degrees Fahrenheit. If you notice powdery mildew on your bud, take precautions to prevent it from spreading and affecting other buds. Here are some tips on how to cure powdery mildew on cannabis.
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1. Cleanliness Is Key.
It’s important to maintain clean conditions around your cannabis cultivation area to avoid the spread of molds and fungus spores. Your plants don’t like dampness either. Moisture encourages mold and fungus growth. Make sure to maintain an even moisture level throughout your garden space.
2. Ventilation Is Essential
Ventilation helps keep humidity low in your room, preventing the spread of molds. Good airflow also helps to circulate fresh air. When working away from a window, install fans in strategic locations to cool your growing area down.
3. Check Frequently
Powdery mildew thrives in warm, humid environments with high levels of relative humidity. Keep an eye out for any signs of the disease and remove sick buds immediately before they begin showing any symptoms. Even if you’ve cleaned your buds thoroughly, they may still pick up unwanted microbes.
4. Spray Down
When dealing with powdery mildew, fungicides containing copper sulfate are the standard treatment. Spray the affected buds until dry and repeat daily until no visible signs remain.
5. Prevent Spore Spread
Covering your cannabis plants in fine mesh netting will help prevent spores from getting onto your buds, helping to keep them free of powdery mildew.
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