# Valley ranchers on alert as screwworm risk grows

> Ranchers in Texas's Rio Grande Valley are on alert after a New World screwworm case was confirmed near Uvalde, though there are no confirmed cases in the Valley itself. Local veterinarians and ranch families are urging daily checks of cattle and pets for wounds that could attract the parasite.

- Date: 2026-11-12 · published 2026-11-13T15:14:05.681Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/98040-valley-ranchers-on-alert-as-screwworm-risk-grows
- Commodities: [Live Cattle](https://feedsoft.ai/c/LCATTLE.md), [Feeder Cattle](https://feedsoft.ai/c/FCATTLE.md)

## Why it matters

Screwworm infestations injure and devalue cattle and can trigger movement restrictions and herd losses, tightening US cattle supply and supporting feeder and live cattle prices.

## Read by commodity

- FCATTLE: bullish ▲
- LCATTLE: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| LCATTLE | 2026-06-04 | [US screwworm case puts ranchers on alert, rallies cattle prices By Reuters](https://feedsoft.ai/events/12084-us-screwworm-case-puts-ranchers-on-alert-rallies-cattle-prices-by-reuters.md) | +0.6% | -1.0% |
| LCATTLE | 2026-05-20 | [Ranchers herd it all as fewer cattle pressure beef prices; screwworm lurks - Dallasfed.org](https://feedsoft.ai/events/19198-ranchers-herd-it-all-as-fewer-cattle-pressure-beef-prices-screwworm-lurks.md) | -1.7% | -1.2% |
| LCATTLE | 2026-08-22 | [US-Mexico: Screwworm is squeezing ranchers on both sides of the border \| CNN](https://feedsoft.ai/events/17847-us-mexico-screwworm-is-squeezing-ranchers-on-both-sides-of-the-border-cnn.md) | -1.6% | -2.8% |
| LCATTLE | 2017-01-14 | [Threat of screwworm keeps East Texas Agriculture agents on alert](https://feedsoft.ai/events/72947-threat-of-screwworm-keeps-east-texas-agriculture-agents-on-alert.md) | +1.2% | -0.4% |
| LCATTLE | 2026-06-04 | [Texas Ranchers Brace as New World Screwworm Returns to US Soil After 6 Decades](https://feedsoft.ai/events/12087-texas-ranchers-brace-as-new-world-screwworm-returns-to-us-soil-after-6-decades.md) | +0.6% | -1.0% |
| FCATTLE | 2026-06-04 | [US screwworm case puts ranchers on alert, rallies cattle prices By Reuters](https://feedsoft.ai/events/12084-us-screwworm-case-puts-ranchers-on-alert-rallies-cattle-prices-by-reuters.md) | +3.4% | +5.3% |
| FCATTLE | 2026-05-20 | [Ranchers herd it all as fewer cattle pressure beef prices; screwworm lurks - Dallasfed.org](https://feedsoft.ai/events/19198-ranchers-herd-it-all-as-fewer-cattle-pressure-beef-prices-screwworm-lurks.md) | -4.0% | -0.6% |
| FCATTLE | 2017-01-14 | [Threat of screwworm keeps East Texas Agriculture agents on alert](https://feedsoft.ai/events/72947-threat-of-screwworm-keeps-east-texas-agriculture-agents-on-alert.md) | +1.8% | -6.6% |

## Sources

- krgv.com: https://www.krgv.com/videos/valley-ranchers-on-alert-as-screwworm-risk-grows/

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