Powery mildew
Powdery mildew is a common fungal disease that can affect cannabis plants, causing damage to leaves and buds. The fungus thrives in warm and humid environments, and can spread quickly if not controlled.
Causes of Powdery Mildew on Cannabis Plants
High humidity Powdery mildew thrives in humid environments, so cannabis plants grown in areas with high humidity are more susceptible to the fungus.
Poor air circulation Cannabis plants need good air circulation to stay healthy, but if the airflow is restricted, the humidity can build up, creating the perfect environment for powdery mildew to grow.
Crowding When cannabis plants are grown too close together, they can restrict airflow and trap humidity, leading to powdery mildew.
Overwatering Overwatering cannabis plants can lead to waterlogged soil, which can increase humidity and create the perfect environment for powdery mildew to thrive.
Resolving Powdery Mildew
Remove affected plant parts Remove any leaves or buds that are covered in powdery mildew to prevent the fungus from spreading.
Increase air circulation Increase airflow around the plants by using fans or by moving them to a more open area.
Lower humidity Lower the humidity in the growing area by using a dehumidifier or by venting out humidity.
Adjust watering Be sure not to overwater the plants and adjust watering schedule to keep the soil from staying too damp.
Preventing Powdery Mildew
Monitor humidity Keep an eye on humidity levels in the growing area and take steps to lower them if necessary.
Space plants correctly Make sure plants are spaced correctly to allow for proper airflow and light penetration.
Avoid overcrowding Avoid overcrowding the plants to ensure good air circulation.
Use preventative measures There are a number of preventative measures you can take to prevent powdery mildew, such as using a fungicide or neem oil.
Powdery mildew can be a serious problem for cannabis plants, but by understanding the causes, taking steps to resolve the issue, and implementing preventative measures, it can be controlled and prevented.
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