Southern Ag · insecticide
Horticultural Oil: label facts, timing, and uses
Horticultural Oil is Southern Ag's Mineral Oil 98% insecticide for foliar spray. What it is labeled for, how it is applied, the timing, and how the PHC Rx label check reads it before a prescription goes out.
Label check
1 warningLast application was 14 days ago. Proceed with a documented override, or reschedule.
Label facts
Horticultural Oil
- Manufacturer
- Southern Ag
- Active ingredient
- Mineral Oil 98%
- EPA registration no.
- Not an EPA-registered pesticide
- Category
- insecticide
- Application
- foliar spray
- Frequency
- Per label
- Retreatment interval
- 42 days minimum
- Protection
- About 1 months
- Time to effect
- About 1 days
Read the Horticultural Oil label (manufacturer PDF). The label is the legal document; this page is the app's copy of it.
Application months
per labelThe app does not carry a month window for this product; the pest’s treatment page sets the timing.
Labeled uses
What the label covers
Treatment guides that use Horticultural Oil
Target pests and diseases on the label (40)
Adelgids · Aphids · Big Bud Mite · Birch Leafminer · Boxwood Leafminer · Boxwood Mite · Boxwood Psyllid · Citrus Flat Mite · Citrus Mites · Cottony Cushion Scale · Crape Myrtle Bark Scale · Elongate Hemlock Scale · Eriophyid Mites · Fig Scale · Hemlock Woolly Adelgid · Honeylocust Spider Mite · Lace Bugs · Leaf Miners · Leafhoppers · Linden Spider Mite · Magnolia Scale · Mango Scale · Mealybugs · Pear Psylla · Persea Mite · Pine Needle Scale · Powdery Mildew · Privet Mite · Psyllids · Red Palm Mite · San Jose Scale · Scale Insects · Spider Mites · Spruce Needle Miner · Spruce Spider Mite · Tent Caterpillar Eggs · Thrips · Two-Spotted Spider Mite · Whiteflies · Whitefly
The label check runs this list against the host, the pest, the month, the dose, and the last application on the tree before a prescription goes out.
FAQ
Questions arborists ask
What is Horticultural Oil?
Horticultural Oil is a insecticide from Southern Ag with Mineral Oil 98% as the active ingredient. It is applied by foliar spray.
What is the Horticultural Oil rate?
Horticultural Oil is applied at the label rate for the method and the host; the app does not carry a DBH rate table for it. Read the label linked on this page and record the rate and total on the application record.
How often can Horticultural Oil be applied?
Minimum retreatment interval 42 days. Expected protection about 1 months. Time to effect about 1 days.
What does Horticultural Oil treat?
The label lists 40 target pests or diseases. The treatment guides on this site that use it: crape myrtle bark scale, hemlock woolly adelgid, scale insects. Each guide has the rate, the timing window, and the alternatives.
Where do these numbers come from?
The PHC Rx product catalog, built from the Horticultural Oil label linked above, and synced to this page from the app. The label is the legal document; if the two disagree, the label wins and the catalog gets fixed.
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