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7.2 Pest and Disease Patrol
Pests and diseases can quickly destroy a grow if not addressed. Early and regular inspection is your best defense. Diseases are often the result of improper environmental conditions.
All to common
Common Pests:
- Spider Mites: Tiny arachnids that live on the underside of leaves. You'll first notice tiny white dots on the leaves and eventually fine webbing.
- Solution: A spray with Neem oil or an insecticidal soap can be very effective.
- Fungus Gnats: Small, dark flies that live in moist soil and feed on roots.
- Solution: Allow the top layer of your soil to dry out between waterings. Use yellow sticky traps to catch adults and a product with BT (Bacillus thuringiensis) to kill the larvae in the soil.
- Thrips: Small, slender insects that leave silvery, streaky damage on leaves.
- Solution: Neem oil or insecticidal soap are effective, but consistent application is key to breaking their life cycle.
Common Diseases:
- Powdery Mildew (PM): A white, powdery fungus that coats the leaves. It thrives in high humidity and poor airflow.
- Prevention: Maintain good airflow and keep humidity in the appropriate range for your plant's life stage.
- Solution: A foliar spray of a solution like a hydrogen peroxide mix or a sulfur-based fungicide can treat it, but it's hard to eliminate completely.
- Bud Rot (Botrytis): A grey, fuzzy mold that grows inside the buds and can quickly spread. It is caused by high humidity and poor airflow during the flowering stage.
- Prevention: Lower your humidity to 40-50% and ensure excellent airflow and a stable temperature.
- Solution: There is no cure for bud rot. You must carefully remove and destroy all affected areas to prevent it from spreading.
The Need for Continuous Pest Education
The human brain can only retain so much information in one given time period.
This is why state-certified programs for pest control require recertification classes.
It's an acknowledgment that continuous learning is essential. I have personally studied the same material upwards of 10 times and recommend you study as much as you need to to know the material.
There are many excellent resources online for pest identification and removal As well as cultivation education. I've learned 100% online without paying anyone and so can you.
Our website has a good pest ID section and provides steps for how to eradicate them.
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