---
title: "Spray now?—late September large patch"
description: "Cool fronts hit warm-season yards? Late-September large-patch fork: spray on the 70 °F streak, catch up 80 °F hosts, stage, or skip."
llmDescription: "Late-September DIY execute fork (seventeen days after Labor Day 2026 = Mon Sep 7; warm-season large-patch soil-temp re-check) for zoysia, St. Augustine, and centipede lawns deciding whether the first cool fronts finally opened the preventive jug: NC State—centipede / St. Augustine preventive starts when soils decline to about 80 °F for 5+ consecutive days (often mid-August catch-up by now); zoysia near about 70 °F for 5+ consecutive days; two well-timed fall apps often enough; ≥2 gal / 1,000 sq ft carrier (3+ or light watering-in often helps); map spring history for spot treatment; hold warm-season N within ~6 weeks of dormancy; Mississippi State—first app after 2-inch morning soils at ≤70 °F for about three consecutive days, with mid-September treatment examples when that streak arrives; Clemson SC—fall fungicide once soils consistently near ~70 °F, with multi-year county averages often mid–late October so Deep South lots may still stage; UGA—late September / early October themes when nights cool and/or 2-inch soils drop below ~70 °F; UAEX—five-day average 0–4 in soils below ~70 °F themes for initial fall apps; Path A zoysia / warm-season 70 °F streak open → first spray execute, Path B centipede/St. Augustine 80 °F window already open and still unsprayed → catch-up spray, Path C soils still mid-70s+ / Deep South calendar lag → keep logging + culture + stage, Path D no history / bermuda / already sprayed → map, skip, or schedule second app—affiliate soil thermometer, rain gauge, moisture meter, measuring cup, backpack sprayer, lawn fungicide large patch, and notebook search links with tag lawnjournal0c-20—not a Saturday spray because September’s name arrived."
pubDate: 2026-09-21
updatedDate: 2026-09-23
topicClusters:
  - "Fall prep & establishment"
  - "Midsummer stress, water & disease"
  - "Warm-season turf & renovation"
canonical: "https://lawncarejournal.app/articles/large-patch-late-september-soil-temp-recheck-execute-triage/"
markdownMirror: "https://lawncarejournal.app/articles/large-patch-late-september-soil-temp-recheck-execute-triage.md"
---

Seventeen days after Labor Day is when warm-season DIY threads flip from “is it too early?” to **“did I miss it—or is this finally the week?”** for **large patch** (*Rhizoctonia solani* **AG 2-2 LP**) on **zoysia**, **St. Augustine**, and **centipede**. Labor Day was a **log-and-gate** weekend for many lots ([First spray?—Labor Day large patch](/articles/large-patch-labor-day-first-spray-execute-triage.md)). Late September is when northern transition / Mid-South mornings often finally stack a real **~70 °F** soil streak—while Deep South counties on Clemson-style **mid–late October** averages should still refuse a calendar jug.

This page is the **late-September large-patch soil-temp re-check execute fork**—the handoff after the Labor Day first-spray page, the [early-August soil-temp vs calendar triage](/articles/large-patch-soil-temp-vs-calendar-early-august-triage.md), the [fall timing checklist](/articles/fall-large-patch-fungicide-timing-zoysia-warm-season.md), and [soil-temp logging](/articles/warm-season-large-patch-spring-dead-spot-soil-temp-logging-late-july.md). It sits beside [large patch ID](/articles/large-patch-zoysia-st-augustine-centipede.md), [warm-season N stop](/articles/warm-season-nitrogen-stop-early-august-countdown-triage.md), [winterizer myths](/articles/warm-season-winterizer-fertilizer-myths-bermuda-zoysia.md), [transition-zone brown patch → large patch flip](/articles/transition-zone-brown-patch-large-patch-season-flip.md), [Spray SDS now?—late September](/articles/spring-dead-spot-late-september-soil-temp-execute-triage.md), [bermuda spring dead spot timing](/articles/spring-dead-spot-bermudagrass-fall-fungicide-timing.md), and [Apply now?—mid-September winter weed PRE](/articles/warm-season-winter-weed-preventer-mid-september-execute-triage.md) when the same weekend is a barrier question rather than a fungicide jug. It is not a remote diagnosis and not a fungicide prescription. Confirm chronic patches and product choice with [county extension](https://www.extension.org/) or a diagnostic clinic. Map treated polygons with the free [lawn area calculator](/tools/lawn-area.md) and scale carrier volume with the [liquid / sprayer calculator](/tools/liquid.md).

## Key takeaways

- **NC State (species clocks):** many **centipede / St. Augustine** preventive starts when soils decline to about **80 °F for 5+ consecutive days** (mid-August in some years—late September is often **catch-up** if unsprayed); many **zoysia** starts near about **70 °F for 5+ consecutive days**; two well-timed fall applications often provide season-long control; severe sites may repeat about **every 4–6 weeks** while soils stay above roughly **50 °F**; apply in at least **2 gal / 1,000 sq ft** (3+ or light watering-in often helps); **map spring circles** for spot treatment.
- **Mississippi State:** first preventive after **2-inch** morning soil temperatures at **≤70 °F for about three consecutive days**; mid-September treatment examples when that streak arrives; liquids need enough water to reach the sheath/thatch zone (**~1–2 gal / 1,000** themes in that bulletin).
- **Clemson SC calendar honesty:** fall fungicide framing once soils consistently drop near **~70 °F**; multi-year SC averages often land **mid–late October** by region—Deep South Path C is still honest this week; keep soft N stopped (Aug 15 Upstate / Sep 1 coast themes, including winterizer bags with N).
- **UGA / UAEX themes:** late **September / early October** prevention when nights cool deeply and/or **2-inch** soils fall **below ~70 °F** (UGA); Arkansas FSA themes cite initial fall apps when **five-day average** soils (about **0–4 in**) drop **below ~70 °F**.
- **DIY late-September job:** pick **Path A** (zoysia / warm-season **~70 °F** streak open → first spray), **Path B** (centipede/St. Augustine **~80 °F** window already open and still unsprayed → catch-up), **Path C** (soils still mid-70s+ / Deep South lag → log + culture + stage), or **Path D** (no history / bermuda / already sprayed → map, skip, or schedule the second app)—not “spray because cool fronts made the news.”

## Why this late-September week confuses warm-season yards

| Cue that tempts the wrong Saturday | What extension is saying | DIY correction |
| --- | --- | --- |
| “Labor Day already passed—I missed large patch forever” | Zoysia clocks often sit near **~70 °F / 5+ days**; many Mid-South lots open in **late Sep / early Oct** | Path A if the streak is real now |
| “One cool night = spray day” | NC State / MSU / UAEX want **multi-day** soil declines, not one dawn | Path A/B only after a written streak |
| “Neighbor in Atlanta sprayed—copy Charleston” | Clemson SC averages often **mid–late October**; coastal soils stay warmer | Path C honesty for Deep South |
| “Centipede looked fine in August—wait for orange rings” | Centipede / St. Augustine often needed the **~80 °F** start weeks ago | Path B catch-up if history exists and you never sprayed |
| Winterizer “for fall color” on zoysia | Soft late N amplifies large patch; Clemson N-stop dates already passed for most SC yards | Hold N; see [winterizer myths](/articles/warm-season-winterizer-fertilizer-myths-bermuda-zoysia.md) |
| Bermuda orange memory → zoysia jug | Bermuda often **outgrows** large patch; fall story is frequently [spring dead spot](/articles/spring-dead-spot-bermudagrass-fall-fungicide-timing.md) | Path D / SDS timing |

Cool-season late-September seed and nitrogen readers should stay on [Still seed?—late September frost](/articles/cool-season-overseed-late-september-frost-countdown-execute-triage.md) and [Pulse now?—mid-September seed](/articles/cool-season-seedling-nitrogen-pulse-mid-september-execute-triage.md)—this page is the warm-season preventive re-check.

## Side-by-side: Path A / B / C / D

| Path | What you see this week | Late-September move |
| --- | --- | --- |
| **A — Zoysia / ~70 °F first spray** | Mapped spring orange/yellow rings on zoysia (or other warm-season with ~70 °F guidance); mid-morning **2–4 in** soil log shows about **≤70 °F for 5+ consecutive days** (NC State) **or** about **≤70 °F for ~3 consecutive mornings** at **2 in** (MSU)—pick the bulletin you follow and stay consistent | First labeled preventive on **history polygons** (or justified whole-lawn if history is diffuse); ≥**2 gal / 1,000**; journal EPA reg. no. + date; schedule second app on the label / ~3–4 week theme |
| **B — Centipede / St. Augustine catch-up** | History polygons; soils already spent **5+ days ≤~80 °F** earlier (often August) **and** you have not sprayed yet | Catch-up first spray now—do **not** wait for spring orange rings; same carrier-volume honesty as Path A; then schedule the second app |
| **C — Still-warm soils / Deep South stage** | History exists, but soils remain mid-70s+ without a multi-day decline into your species band; or you are on Clemson-style **mid–late October** average counties | Keep the [soil-temp log](/articles/warm-season-large-patch-spring-dead-spot-soil-temp-logging-late-july.md); **hold soft N**; morning deep/infrequent water; stage chemistry—**do not** invent a late-September jug from a single front |
| **D — No history / bermuda / already sprayed** | No mapped large-patch circles; bermuda-dominant stand; or Labor Day / earlier Path A/B spray already on the journal | Culture and map only; bermuda → [Spray SDS now?—late September](/articles/spring-dead-spot-late-september-soil-temp-execute-triage.md) near ~70 °F themes; already sprayed → calendar the **second** app, not a panic re-dose |

## The late-September large-patch re-check fork (10 steps)

1. **Confirm the grass by zone.** Zoysia / St. Augustine / centipede → stay on this page. Bermuda-dominant → Path D / [SDS](/articles/spring-dead-spot-bermudagrass-fall-fungicide-timing.md). Tall fescue smoke rings in sticky heat → [brown patch](/articles/summer-brown-patch-rhizoctonia-tall-fescue.md), not large patch. Mixed lots → split programs.
2. **Open last spring’s photo map before you shop.** NC State: mapping chronic circles cuts fall fungicide cost versus whole-lawn panic. No history and no sheath lesions → Path D culture.
3. **Read several mornings of soil temperature—not one cool dawn.** Place a [soil thermometer](https://www.amazon.com/s?k=soil+thermometer+garden&tag=lawnjournal0c-20) at about **2–4 in** (UGA / MSU often cite **2-inch** depth; Arkansas FSA discusses **0–4 in** averages). Log mid-morning (MSU examples near **~7 a.m.**). Zoysia / ~70 °F Path A: NC State **5+ days** or MSU **~3 mornings ≤70 °F**—follow **one** extension clock. Centipede / St. Augustine Path B: look back for an earlier **~80 °F / 5+ day** streak you never treated.
4. **Reconcile Labor Day notes with this week’s log.** If you already sprayed on a real streak → Path D second-app planning. If Labor Day was Path C “still hot” and soils finally crossed your band → Path A/B execute. If Deep South averages say October → Path C.
5. **Lock the nitrogen stop before the fungicide aisle.** Soft late N into cool wet thatch amplifies large patch (NC State ~**6 weeks before dormancy**; Clemson Aug 15 / Sep 1 themes). Convert bag math with the [NPK calculator](/tools/npk.md) only if a local calendar still honestly allows a pulse—most late-September warm-season yards should be **holding**.
6. **Separate look-alikes that still share the curb view.** Sticky-night leaf spots on St. Augustine → [gray leaf spot](/articles/gray-leaf-spot-st-augustine-late-summer.md). Soft black roots → [take-all / centipede decline](/articles/centipedegrass-decline-take-all-root-rot.md). Sunny-edge wilt → [chinch scouting](/articles/southern-chinch-bug-midsummer-peak-st-augustine-scouting.md). Bone-dry south slopes without sheath lesions → water and culture, not a fall jug.
7. **If Path A or Path B execute:** choose a product that lists **large patch** / warm-season turf on the **current label**. Many strong golf/pro premixes are **not** home-lawn labeled—read the bag. Scale spray volume with the [liquid / sprayer calculator](/tools/liquid.md) after you [map treated area](/tools/lawn-area.md). Plan **≥2 gal / 1,000 sq ft** (3+ when the label and equipment allow; MSU cites about **1–2 gal / 1,000** to reach the sheath zone).
8. **Deliver to the sheath / thatch zone—not a mist on the leaf tip.** A calibrated [backpack sprayer](https://www.amazon.com/s?k=backpack+sprayer+lawn&tag=lawnjournal0c-20) plus a [measuring cup](https://www.amazon.com/s?k=measuring+cup+ml+oz&tag=lawnjournal0c-20) keeps rates honest. Granular products often need labeled watering-in (Clemson homeowner tables commonly cite about **½ inch**)—measure with a [lawn rain gauge](https://www.amazon.com/s?k=lawn+rain+gauge&tag=lawnjournal0c-20). Confirm the root zone with a [soil moisture meter](https://www.amazon.com/s?k=soil+moisture+meter+lawn&tag=lawnjournal0c-20) so you are not chasing wilt with more evening mist.
9. **If Path C:** keep logging; hold soft N; move irrigation to early morning; prune shade edges that trap humidity on chronic polygons; stage a labeled [lawn fungicide large patch](https://www.amazon.com/s?k=lawn+fungicide+large+patch&tag=lawnjournal0c-20) search for when the soil-temp streak arrives—do not spray the garage shelf because the calendar flipped past mid-September.
10. **Journal the fork.** Log species, Path A/B/C/D, multi-morning soil temps, mapped sq ft, product name + EPA reg. no., carrier gallons / 1,000, water-in inches if granular, and the planned second-app date. That record stops next year’s “we always spray the third weekend of September” reflex.

Browse staging gear when the yard actually needs it: [soil thermometer garden](https://www.amazon.com/s?k=soil+thermometer+garden&tag=lawnjournal0c-20), [lawn rain gauge](https://www.amazon.com/s?k=lawn+rain+gauge&tag=lawnjournal0c-20), [soil moisture meter lawn](https://www.amazon.com/s?k=soil+moisture+meter+lawn&tag=lawnjournal0c-20), [measuring cup ml oz](https://www.amazon.com/s?k=measuring+cup+ml+oz&tag=lawnjournal0c-20), [backpack sprayer lawn](https://www.amazon.com/s?k=backpack+sprayer+lawn&tag=lawnjournal0c-20), [lawn fungicide large patch](https://www.amazon.com/s?k=lawn+fungicide+large+patch&tag=lawnjournal0c-20), [azoxystrobin lawn fungicide](https://www.amazon.com/s?k=azoxystrobin+lawn+fungicide&tag=lawnjournal0c-20), [propiconazole lawn fungicide](https://www.amazon.com/s?k=propiconazole+lawn+fungicide&tag=lawnjournal0c-20), [lawn care notebook](https://www.amazon.com/s?k=lawn+care+notebook&tag=lawnjournal0c-20). Prefer a written soil-temp streak over hoping September’s name invents the right week.

## Timing cues side by side

| Source theme | Late-September read | DIY translation |
| --- | --- | --- |
| NC State zoysia | ~**70 °F for 5+ consecutive days** | Path A gate for many Mid-South / transition lots this week |
| NC State centipede / St. Augustine | ~**80 °F for 5+ days** (often mid-August) | Path B catch-up if still unsprayed |
| Mississippi State | **2-inch** mornings **≤70 °F for ~3 consecutive days**; mid-Sep examples | Path A when MSU clock is the one you follow |
| Clemson SC averages | First apps often **mid–late October** by region | Deep South Path C until soils actually hit ~70 °F |
| UGA | Late **Sep / early Oct** when nights cool and/or **2-inch** soils **below ~70 °F** | Aligns with Path A for many GA yards now |
| UAEX FSA | Initial fall apps when **5-day average** **0–4 in** soils **below ~70 °F** | Path A with a short average, not one reading |
| Soft late N | Amplifies disease (NC State / Clemson) | Hold winterizer N; culture first |

Optional culture still beats another jug: finish thatch/drainage plans only while turf still grows hard enough (see [thatch assessment](/articles/warm-season-thatch-assessment-zoysia-st-augustine-fall.md)), keep irrigation on [fall cutback](/articles/fall-warm-season-irrigation-cutback-bermuda-zoysia.md) themes, and leave winter weed PRE on its own [mid-September](/articles/warm-season-winter-weed-preventer-mid-september-execute-triage.md) fork.

## What a homeowner can still accomplish this week

**Assessment**

- Confirm species by zone; pull spring orange-ring photos.
- Write three to five mid-morning soil temps at 2–4 in.
- Re-read any Labor Day journal entry—sprayed, staged, or skipped?

**If Path A or B**

- Spot-treat mapped polygons first → labeled large-patch product → honest carrier volume → journal second-app date.

**If Path C**

- Culture + log + stage chemistry; spray when the streak hits your species band.

**If Path D**

- Map and culture; bermuda → SDS path; already sprayed → calendar the second app.

Canada’s readers should confirm provincial product registration and local warm-season windows. Australia’s readers should not copy this Northern Hemisphere late-September fork onto opposite-season summers.

## What to journal in Lawn Care Journal

- Zone map (Path A / B / C / D) and square footage per path
- Multi-morning soil temps (depth + time of day) and which extension clock you followed
- Soft-N hold date and any winterizer bag % N skipped
- Product name, EPA reg. no., FRAC notes, carrier gal / 1,000, water-in inches
- First spray date vs planned second app (or “already sprayed Labor Day”)
- Any sheath-lesion return dates after cool wet stretches

Use the [Lawn Care Journal](https://apps.apple.com/us/app/lawn-care-journal/id1507797403) app to keep the late-September large-patch fork honest. Optional in-app Assistant is educational only—not a disease recommendation for your county.

## Further reading

- [First spray?—Labor Day large patch](/articles/large-patch-labor-day-first-spray-execute-triage.md)
- [Large patch soil-temp vs calendar (early August)](/articles/large-patch-soil-temp-vs-calendar-early-august-triage.md)
- [Fall large patch timing checklist](/articles/fall-large-patch-fungicide-timing-zoysia-warm-season.md)
- [Large patch ID — zoysia, St. Augustine, centipede](/articles/large-patch-zoysia-st-augustine-centipede.md)
- [Soil-temp logging — large patch vs spring dead spot](/articles/warm-season-large-patch-spring-dead-spot-soil-temp-logging-late-july.md)
- [Warm-season nitrogen stop (early August)](/articles/warm-season-nitrogen-stop-early-august-countdown-triage.md)
- [Warm-season winterizer myths](/articles/warm-season-winterizer-fertilizer-myths-bermuda-zoysia.md)
- [Brown patch → large patch season flip](/articles/transition-zone-brown-patch-large-patch-season-flip.md)
- [Spray SDS now?—late September](/articles/spring-dead-spot-late-september-soil-temp-execute-triage.md)
- [Spring dead spot fall fungicide timing](/articles/spring-dead-spot-bermudagrass-fall-fungicide-timing.md)
- [Apply now?—mid-September winter weed PRE](/articles/warm-season-winter-weed-preventer-mid-september-execute-triage.md)

Late September needs a soil-temperature re-check for large patch—not a hope that cool fronts invent the right preventive week for every county.

## Sources

1. Butler, L., & Kerns, J. (NC State Extension). [Large Patch in Turf](https://content.ces.ncsu.edu/large-patch-in-turf) (reviewed Dec 16, 2019)—disease begins as soils decline toward **~70 °F** in fall; symptoms often wait for cool wet weather or spring green-up; favored by excess fall/spring N, poor drainage, over-irrigation, thatch, low mowing; **centipede / St. Augustine** preventive starts when soils decline to about **80 °F for 5+ consecutive days** (mid-August in some years); **zoysia** near about **70 °F for 5+ consecutive days**; two well-timed apps may provide season-long control; severe sites repeat about **4–6 weeks** while soils stay above ~**50 °F**; ≥**2 gal / 1,000 sq ft** carrier (3+ or ~⅛ in watering-in often helps); map spring areas for fall spot treatment; many listed products are **not** for home lawns (*).
2. Kerns / NC State Turf Pathology. [Fall Into Warm-Season Disease Prevention](https://turfpathology.ces.ncsu.edu/news/fall-into-warm-season-disease-prevention/)—September cool-down framing; zoysia preventive near **~70 °F** soil; centipede / St. Augustine often start when soils are about **75–80 °F**, especially with high soil moisture; carrier-volume theme of at least **~2 gal / 1,000 sq ft**.
3. Clemson HGIC. [Large Patch Disease Control in Warm Season Lawns](https://hgic.clemson.edu/large-patch-disease-control-in-warm-season-lawns/)—centipede most susceptible, then St. Augustine, then zoysia; bermudagrass often less severe; avoid N after about **Aug 15** Upstate/mid-state or **Sep 1** coast (including winterizer bags with N); initiate fall fungicide treatments once soils drop to about **70 °F**; SC multi-year average tables often place first apps **mid–late October** by region; spring follow-up at green-up; homeowner granular tables note watering-in (about **½ inch** themes).
4. Martinez, A. (UGA). [Time for Rhizoctonia Large Patch Prevention](https://site.caes.uga.edu/entomologyresearch/2025/09/time-for-rhizoctonia-large-patch-prevention/) (Sep 5, 2025)—*R. solani* **AG 2-2 LP**; favored by thick thatch, excess moisture, shade, early-spring / late-fall N; culture first; fungicides in late **September / early October** when nights cool deeply and/or **2-inch** soils are **below ~70 °F**; ≥**2 preferably 3 gal / 1,000 sq ft**; 1–2 fall apps may reduce spring need.
5. Mississippi State Extension (Henn, A.). [The Plant Doctor: Large (Brown) Patch of Warm-Season Turfgrasses](https://extension.msstate.edu/publications/the-plant-doctor-large-brown-patch-warm-season-turfgrasses) (Publication 3743)—cool wet activity themes; history-based preventive on prior polygons; first fall app after **2-inch** morning soils at **≤70 °F for about three consecutive days**, with mid-September treatment examples; liquids in about **1–2 gal / 1,000 sq ft** to reach the sheath zone.
6. University of Arkansas Division of Agriculture (FSA7527). [Large Patch of Zoysiagrass and Bermudagrass](https://www.uaex.uada.edu/publications/pdf/FSA-7527.pdf)—patches common as soils decline **below ~70 °F**; initial fall fungicide when **five-day average** soil temperatures from about **0–4 inches** drop **below ~70 °F**; culture and mapped history emphasized.

---

Related reads: [Spray SDS now?—late September](/articles/spring-dead-spot-late-september-soil-temp-execute-triage.md), [First spray?—Labor Day large patch](/articles/large-patch-labor-day-first-spray-execute-triage.md), [Seed rye?—late September bermuda](/articles/bermuda-winter-rye-late-september-staging-execute-triage.md), [Still seed?—late September frost](/articles/cool-season-overseed-late-september-frost-countdown-execute-triage.md), [Apply now?—mid-September winter weed PRE](/articles/warm-season-winter-weed-preventer-mid-september-execute-triage.md), [Apply PRE now?—mid-September henbit](/articles/cool-season-winter-annual-pre-mid-september-execute-triage.md), [Feed now?—mid-September nitrogen](/articles/cool-season-fall-nitrogen-mid-september-execute-triage.md), [Keep scouting?—late September armyworms](/articles/fall-armyworm-late-september-keep-scouting-execute-triage.md), [Treat or recover?—Labor Day armyworms](/articles/fall-armyworm-labor-day-treat-vs-recover-execute-triage.md), [Last call?—Labor Day white grubs](/articles/white-grub-curative-labor-day-last-call-execute-triage.md).

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## Topic clusters

- Fall prep & establishment
- Midsummer stress, water & disease
- Warm-season turf & renovation

## Related guides

Cluster co-members for follow-up grounding (prefer these `.md` mirrors before scanning the full catalog).

- [Spray SDS now?—late September](https://lawncarejournal.app/articles/spring-dead-spot-late-september-soil-temp-execute-triage.md): Late-September DIY execute fork (seventeen days after Labor Day 2026 = Mon Sep 7; bermudagrass spring dead spot soil-temp execute) for transition-zone and southern bermuda lawns deciding whether cool fronts finally open…
- [Large patch soil-temp triage](https://lawncarejournal.app/articles/large-patch-soil-temp-vs-calendar-early-august-triage.md): Early-August DIY triage for zoysia, St. Augustine, and centipede lawns that want to spray for large patch (Rhizoctonia solani AG 2-2 LP) because the calendar flipped to August: NC State / Clemson / UGA framing—preventiv…
- [First spray?—Labor Day large patch](https://lawncarejournal.app/articles/large-patch-labor-day-first-spray-execute-triage.md): Early-September DIY execute triage (post–Labor Day week / today) when zoysia, St. Augustine, and centipede lawns wonder whether the holiday weekend is finally “spray day” for large patch (Rhizoctonia solani AG 2-2 LP)…
- [Large patch soil-temp logging](https://lawncarejournal.app/articles/warm-season-large-patch-spring-dead-spot-soil-temp-logging-late-july.md): Late-July DIY companion for warm-season fall disease watches: buy and place a soil thermometer now, log mid-morning 2–4 in. trends (not one hot afternoon), and split calendars—centipede/St…
- [Keep scouting?—late September armyworms](https://lawncarejournal.app/articles/fall-armyworm-late-september-keep-scouting-execute-triage.md): Late-September DIY execute fork (seventeen days after Labor Day 2026 = Mon Sep 7; fall armyworm Spodoptera frugiperda keep-scouting execute) for southern, Mid-South…
- [Spring dead spot spray triage](https://lawncarejournal.app/articles/spring-dead-spot-soil-temp-vs-calendar-early-august-triage.md): Early-August DIY triage for bermudagrass lawns that want to spray for spring dead spot (Ophiosphaerella spp.) because August arrived or last spring’s circles still sting: NC State / Oklahoma State / Clemson / UGA framin…