Pest & Disease
Neem oil
Neem oil is a reasonable first treatment for mild powdery mildew or aphids once airflow and spacing are already addressed, not a substitute for them.
Typical Price
$12 to $20
Best Use
Treating powdery mildew
Our Pick
Bonide Captain Jack's Neem Oil, 16 oz Concentrate
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What to look for
- Concentrate you dilute yourself
- Labeled for edible plants
- Works as both fungicide and insecticide