Bayer · insecticide
Merit 2F: label facts, timing, and uses
Merit 2F is Bayer's Imidacloprid 21.4% insecticide for foliar spray and soil drench and soil injection. 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
Merit 2F
- Manufacturer
- Bayer
- Active ingredient
- Imidacloprid 21.4%
- EPA registration no.
- Not an EPA-registered pesticide
- Category
- insecticide
- Application
- foliar spray, soil drench, soil injection
- Frequency
- Per label
- Retreatment interval
- 365 days minimum
- Protection
- About 12 months
- Time to effect
- About 30 days
Read the Merit 2F 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 Merit 2F
- sycamore anthracnose treatment
- bronze birch borer treatment
- crape myrtle bark scale treatment
- diplodia tip blight treatment
- dutch elm disease treatment
- emerald ash borer treatment rates
- hemlock woolly adelgid treatment
- japanese beetle treatment
- oak wilt treatment rates
- scale insect treatment
- spotted lanternfly treatment
- two-lined chestnut borer treatment
Target pests and diseases on the label (107)
Adelgids · Anthracnose · Aphids · Apple Borers · Asian Longhorned Beetle · Avocado Lace Bug · Birch Leafminer · Black Cherry Aphid · Black Vine Weevil · Borers · Botryosphaeria Canker · Boxwood Leafminer · Boxwood Psyllid · Bronze Birch Borer · Butternut Canker · Canker Diseases · Cedar Bark Scale · Cooley Spruce Gall Adelgid · Cottony Cushion Scale · Crape Myrtle Bark Scale · Cypress Aphid · Cytospora Canker · Diplodia Tip Blight · Douglas-Fir Beetle · Dutch Elm Disease · Eastern Spruce Gall Adelgid · Elm Leaf Beetle · Elm Leaf Miner · Elongate Hemlock Scale · Emerald Ash Borer · Eucalyptus Longhorned Borer · Fig Scale · Fir Engraver · Flatheaded Appletree Borer · Flatheaded Borers · Four-Lined Plant Bug · Fusarium · Fusarium Wilt · Gall Makers · Goldspotted Oak Borer · Hackberry Nipple Gall · Hemlock Woolly Adelgid · Hypoxylon Canker · Ips Engraver Beetles · Japanese Beetle · Jeffrey Pine Beetle · Juniper Scale · Kabatina Tip Blight · Kermes Scale · Lace Bugs · Leaf Beetles · Leaf Miners · Leafhoppers · Leafminer · Lilac/Ash Borer · Linden Aphid · Locust Leafminer · Magnolia Scale · Mealybugs · Mole Crickets · Mountain Pine Beetle · Nectria Canker · Oak Lace Bug · Oak Pit Scale · Oak Wilt · Oystershell Scale · Pear Psylla · Phomopsis Blight · Pine Bark Adelgid · Pine Bark Beetles · Pine Needle Scale · Pine Pitch Canker · Pine Shoot Beetle · Pine Spittlebug · Pine Tip Moth · Plant Bugs · Plantbugs · Psyllids · Red Turpentine Beetle · Root Aphids · Root Weevils · Roundheaded Borers · Royal Palm Bug · San Jose Scale · Sawflies · Scale Insects · Seiridium Canker · Southern Pine Beetle · Spittlebugs · Spotted Lanternfly · Spruce Bark Beetle · Spruce Needle Miner · Sycamore Anthracnose · Sycamore Scale · Taxus Mealybug · Tea Scale · Thrips · Tuliptree Aphid · Tupelo Leafminer · Two-Lined Chestnut Borer · Verticillium Wilt · Walnut Scale · Western Pine Beetle · White Grubs · Whiteflies · Whitefly · Witch Hazel Gall Aphid
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 Merit 2F?
Merit 2F is a insecticide from Bayer with Imidacloprid 21.4% as the active ingredient. It is applied by foliar spray or soil drench or soil injection.
What is the Merit 2F rate?
Merit 2F 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 Merit 2F be applied?
Minimum retreatment interval 365 days. Expected protection about 12 months. Time to effect about 30 days.
What does Merit 2F treat?
The label lists 107 target pests or diseases. The treatment guides on this site that use it: sycamore anthracnose, bronze birch borer, crape myrtle bark scale, diplodia tip blight, dutch elm disease, emerald ash borer, hemlock woolly adelgid, japanese beetle, oak wilt, scale insects, spotted lanternfly, two lined chestnut borer. 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 Merit 2F 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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