Hi there,
Using neem oil to control fungal gnats after top dressing during the preflower stage can be helpful, but there are precautions to consider:
- Neem Oil Application: Dilute neem oil properly and apply it during the evening to avoid direct sunlight. Follow instructions carefully.
- Early Flowering Stage Caution: Since your plant is in the preflower stage and showing pistils, you should exercise caution with any treatments you apply. During the flowering stage, it's best to avoid using strong pesticides or treatments that could affect the taste and quality of the final product. Neem oil can leave residues and alter the flavor of your buds if not used correctly.
- Integrated Pest Management (IPM): Use sticky traps, allow soil to dry between waterings, and consider introducing beneficial predators like nematodes.
- Monitor Carefully: Keep a close eye on plants. If gnats threaten plants, consider more aggressive action, but prioritize plant health and quality.
Always prioritize plant safety and product quality when considering treatments during the flowering stage.
Good luck