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Is Powdery Mildew Harmful on Marijuana?

is powdery mildew harmful on marijuana?

Yes, powdery mildew is harmful on marijuana. This news may be upsetting, but not nearly as upsetting as watching it wipe out your entire cannabis crop. This airborne fungal pathogen is very destructive to marijuana. In fact, if left untreated it can destroy your whole crop in less than a week.

As a marijuana grower, there are things you can do to stop this plague before it kills your plants. The first thing you should do is prevent it from ever reaching your crops in the first place using proper cannabis air purification. More on how to do that below, but if powdery mildew has already infected your plants, read on to see what you can do to halt its spread.

Powdery Mildew Explained

Powdery mildew is one of the most serious threats to cannabis crops, and one of the most common diseases faced by growers. Once it has started to infect your crop, your recovery options are limited.

First appearing on plants as a grey or white powder, powdery mildew usually attacks the leaves of young cannabis plants. It can also first appear on the younger leaves of older plants.

The first sign it is coming is the appearance of small blisters, bumps or pimples on the top of the fan leaves. If you see this, the white powder is not far behind.

Another tell-tale sign that you have an infestation of powdery mildew is the smell of rotting vegetation. This is a late-stage indicator of a severe infestation. If you are getting a strange odor in your grow area, do a careful examination of all plants to look for signs of this mold.

Grow area risk factors that encourage the growth of powdery mildew include high humidity, over watering and overcrowded plants. Contrary to what many people think, powdery mildew does not do well in hotter climates. It prefers cool to moderate temperatures with elevated humidity.

Powdery mildew also presents serious health risks. Consuming plants infected with powdery mildew can be harmful to your health. It can lead to respiratory infections and even lung diseases like aspergillosis. If a person with a compromised immune system inhales infected marijuana, they can get a lung infection that can be serious or even fatal.

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Fighting a Powdery Mildew Infestation

It’s clear that an infestation of powdery mildew can quickly destroy your entire crop. Here are a few things you can do if you are already in the midst of an outbreak:

  • Remove infected plants. You will need to get rid of any infected plants as quickly as possible, to avoid the disease spreading to other plants. If you see any small blisters on the tops of any leaves, or if you see any white fuzz, you need to act now. Remember, powdery mildew spreads like the wind and easily jumps from one plant to the next. Bagging infected plants before moving is a good idea.
  • Cut the infected leaf, bud, or branch from the plant immediately. But be careful, since jostling the infected area can spread the spores to other plants, or parts of the same plant.

Prevention Is Best Defense against Powdery Mildew

You are far better off stopping this airborne fungal pathogen before it gets anywhere near your plants. How? By keeping the air in your growing areas completely free of any spores, fungi, molds and all other threats. Accomplish this by implementing a good marijuana air sanitation system.

Use a Good Air Sanitation System

One of the best systems on the market for removing pathogens from the air is the AiroClean420. This is a device originally used for purifying the air in the space station. Many growers just like you use the device to clean the air in their grow areas.

The AiroClean420 draws in the air from your grow area. Then, once inside the device, the air is scrubbed, a process that removes all threats and contaminants (AiroClean420 does not produce and/or use ozone or any other chemical or gas) . The air leaving the device is entirely free of powdery mildew spores or any other airborne pathogens.

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To learn more about how the AiroClean420 removes harmful powdery mildew from marijuana growing areas, visit us online. Or call an AiroClean420 pro at 844-247-3913.

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