# After the Bell | Feeders end limit higher after screwworm detection - Pro Farmer

> Aug feeder cattle rose the daily limit of $10.75 to $353.375 after a screwworm detection was reported. August live cattle rose $3.675 to $241.525 after touching a nine-week low. Feeder cattle had earlier hit a 5.5-month low.

- Date: 2026-06-04 · published 2026-06-04T12:00:00.000Z
- Category: disease · region US · magnitude high
- Page: https://feedsoft.ai/events/5198-after-the-bell-feeders-end-limit-higher-after-screwworm-detection-pro-farmer
- Commodities: [Feeder Cattle](https://feedsoft.ai/c/FCATTLE.md), [Live Cattle](https://feedsoft.ai/c/LCATTLE.md)

## Why it matters

A screwworm detection raises disease risk and possible movement restrictions on cattle, tightening feeder supply and lifting cattle prices.

## Read by commodity

- FCATTLE: bullish ▲
- LCATTLE: bullish ▲

## Linked price moves

| Commodity | Date | Window | Change % | z-score | Why linked |
| --- | --- | --- | --- | --- | --- |
| FCATTLE | 2026-06-03 | 1 | +3.1% | 3.3 | Feeder futures closed limit higher after the screwworm detection from 5.5-month lows, directly describing the large move (the report date is a day later than the move window but describes the same session). |

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| FCATTLE | 2025-09-24 | [Screwworm threat tightens US beef supply, lifts feeders - CME
						 \| The Cattle Site](https://feedsoft.ai/events/23007-screwworm-threat-tightens-us-beef-supply-lifts-feeders-cme-the-cattle-site.md) | -1.0% | +2.2% |
| FCATTLE | 2024-11-27 | [Cattle Imports from Mexico Restricted after New World Screwworm Detection \| Ohio BEEF Cattle Letter](https://feedsoft.ai/events/27350-cattle-imports-from-mexico-restricted-after-new-world-screwworm-detection-ohio.md) | -0.4% | +0.5% |
| FCATTLE | 2026-06-05 | [Cattle futures rally on first US screwworm detection - CME
						 \| The Cattle Site](https://feedsoft.ai/events/12089-cattle-futures-rally-on-first-us-screwworm-detection-cme-the-cattle-site.md) | +1.8% | +2.0% |
| FCATTLE | 2024-12-19 | [U.S. Cattle Industry Faces Challenges Amid Screwworm Detection in Mexico - Beef Web](https://feedsoft.ai/events/26911-u-s-cattle-industry-faces-challenges-amid-screwworm-detection-in-mexico-beef-web.md) | +0.9% | +6.4% |
| FCATTLE | 2023-12-21 | [USDA protects livestock producers against New World screwworm outbreaks \| The National Provisioner](https://feedsoft.ai/events/32619-usda-protects-livestock-producers-against-new-world-screwworm-outbreaks-the.md) | -0.7% | +2.6% |
| LCATTLE | 2025-09-24 | [Screwworm threat tightens US beef supply, lifts feeders - CME
						 \| The Cattle Site](https://feedsoft.ai/events/23007-screwworm-threat-tightens-us-beef-supply-lifts-feeders-cme-the-cattle-site.md) | -1.8% | +2.2% |
| LCATTLE | 2026-06-05 | [Cattle futures rally on first US screwworm detection - CME
						 \| The Cattle Site](https://feedsoft.ai/events/12089-cattle-futures-rally-on-first-us-screwworm-detection-cme-the-cattle-site.md) | +0.4% | -2.4% |
| LCATTLE | 2024-11-27 | [Cattle Imports from Mexico Restricted after New World Screwworm Detection \| Ohio BEEF Cattle Letter](https://feedsoft.ai/events/27350-cattle-imports-from-mexico-restricted-after-new-world-screwworm-detection-ohio.md) | +1.4% | +3.8% |

## Sources

- profarmer.com: https://www.profarmer.com/news/after-bell/after-bell-soyoil-marks-largest-daily-decline-mid-march

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.