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Monterey Horticultural Oil is a certified organic (OMRI-listed) paraffinic mineral oil used year-round to control soft-bodied insects, mites, and fungal diseases by physical suffocation..
Key Details
How it works: Smothers insect eggs, larvae, nymphs, and adults on contact, while interfering with fungal pathogen attachment.
What it targets: Aphids, whiteflies, spider mites, mealybugs, scale insects, and psyllids.
Safe for: Ornamentals, roses, vegetables, citrus, and fruit/nut trees with a 0-day pre-harvest interval (can be used up to the day of harvest).
Application: Can be applied in both dormant (winter) and growing (summer) seasons, typically mixed with water or bought as a ready-to-spray hose-end bottle. Avoid spraying in extreme heat (above 90°F) or on tender young seedlings to prevent leaf damage
• OMRI listed for organic gardening
• No temperature restrictions
• Use up to the day of harvest
• Effective as a dormant spray and in summer
• Can use in combination with other insecticides or fungicides