
Lawn Diseases
Lawn Fungus Identification: Rule Out 4 Impostors
Lawn fungus identification by patch pattern, blade lesion and season — starting with the four things that look like disease and are not.

Rotation Fungicide
★★★★☆ 4.4/5
our editor rating how we score4.3/5 from 4,852 shoppers at Amazon — their number, not ours.
$19–$24
Typical price · 5,000 sq ft per 32 oz bottle
Affiliate links — see our disclosure. Commissions never influence verdicts.
Propiconazole in a hose-end sprayer. Fast curative knockdown and the right rotation partner to azoxystrobin for resistance management.
Faster curative action than azoxystrobin and a different chemical class — which is exactly what you want for the second application in a fungicide rotation. The hose-end bottle trades precision for convenience.
Product type
Rotation Fungicide
Active ingredient
Propiconazole 2.42% (hose-end spray)
Price range
$19–$24
Coverage
5,000 sq ft per 32 oz bottle
Best for
Second application in a fungicide rotation
our editor rating
4.4 out of 5
Label read on EPA's label database
EPA Reg. No. 92564-47
We opened this product's accepted label on EPA's own Pesticide Product Label System — the strongest source available for what a product is registered to do.
Full label read 2026-08-02 on EPA PPLS. Registered product name 'BTF Concentrate'; sold as BioAdvanced Fungus Control for Lawns. Propiconazole 2.42% confirmed. Dollar spot is on this label — nine mentions — along with anthracnose, brown patch, large patch, powdery mildew, red thread, rust and summer patch, which is why dollar-spot.mdx cards this rather than the azoxystrobin granular. Note the same registrant also holds a 0.51% propiconazole GRANULAR product (92564-38); this record is the 2.42% concentrate.
Where this page and the container disagree, the container wins — the label is the legal authority on rates and restrictions. How to read one yourself.
Matched against each state's actual disease, weed and pest pressure.
Common questions
BioAdvanced Fungus Control for Lawns typically runs $19–$24, covering 5,000 sq ft per 32 oz bottle.
BioAdvanced Fungus Control for Lawns targets Brown patch, Large patch, Dollar spot, Snow mold, Gray leaf spot.
Propiconazole 2.42% (hose-end spray), registered under EPA Reg. No. 92564-47.
Shorter protection window (~14 days) than azoxystrobin
Real feedback
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Lawn Diseases
Lawn fungus identification by patch pattern, blade lesion and season — starting with the four things that look like disease and are not.

Lawn Diseases
Brown patch treatment needs two things: the right fungicide, and the summer nitrogen habit that caused it. Fungicide alone buys you a repeat next July.

Lawn Diseases
Snow mold treatment is mostly about the autumn before: gray and pink snow mold grew under the snow, so what you see in March is already finished damage.

Lawn Diseases
Dollar spot is the one lawn disease caused by too little nitrogen, not too much — the exception to every other fungus guide here. The hourglass lesion confirms it.

Lawn Diseases
Virginia Tech: azoxystrobin essentially has no activity against dollar spot. That one gap decides which of the two homeowner lawn fungicides you actually need.

Lawn Diseases
NC State: the FRAC 11 fungicides that beat brown patch do not work well on gray leaf spot. Name the disease first — the group follows, and the brand barely matters.

Lawn Diseases
NC State: perennial ryegrass loses turf in a few days, St. Augustine is the most resistant host. Same pathogen — so your grass decides how worried to be.
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