# A parasitic fly is inching closer to the US border. Colorado livestock leaders are already preparing

> Five Rivers Cattle Feeding, one of the largest US feedlot companies, says it is struggling to fill pens because the Mexican cattle import closure removes about five percent of its supply. The article also notes the US herd is at its lowest in decades and ranchers are selling cattle at high prices.

- Date: 2026-02-10 · published 2026-02-10T12:00:00.000Z
- Category: disease · region US · magnitude low
- Page: https://feedsoft.ai/events/20541-a-parasitic-fly-is-inching-closer-to-the-us-border-colorado-livestock-leaders
- Commodities: [Feeder Cattle](https://feedsoft.ai/c/FCATTLE.md), [Corn](https://feedsoft.ai/c/CORN.md)

## Why it matters

Feedlots competing for scarce feeder cattle support feeder prices and raise feed demand for corn only marginally, while sustaining high cattle values.

## Read by commodity

- CORN: neutral
- FCATTLE: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| FCATTLE | 2025-07-10 | [US recloses border with Mexico as flesh-eating parasite moves north \| AP News](https://feedsoft.ai/events/23705-us-recloses-border-with-mexico-as-flesh-eating-parasite-moves-north-ap-news.md) | +1.6% | +7.7% |
| FCATTLE | 2025-12-22 | [NWS Causes Threat to US Livestock Industry](https://feedsoft.ai/events/21458-nws-causes-threat-to-us-livestock-industry.md) | +0.4% | +5.1% |
| FCATTLE | 2026-01-06 | [As Screwworm Inches Closer, When Could the U.S. Reopen the Southern Border to Cattle Imports? - Drovers](https://feedsoft.ai/events/21009-as-screwworm-inches-closer-when-could-the-u-s-reopen-the-southern-border-to.md) | +0.9% | +2.5% |
| FCATTLE | 2025-10-17 | [NWS is affecting both sides of border \| Western Livestock Journal](https://feedsoft.ai/events/22366-nws-is-affecting-both-sides-of-border-western-livestock-journal.md) | -4.3% | -11.2% |
| FCATTLE | 2026-06-03 | [Flesh-eating screwworm confirmed in Texas calf as parasite crosses border from Mexico \| Reuters](https://feedsoft.ai/events/18763-flesh-eating-screwworm-confirmed-in-texas-calf-as-parasite-crosses-border-from.md) | +1.6% | +4.5% |
| CORN | 2022-10-18 | [Bird flu kills close to a record number of poultry in the U.S.](https://feedsoft.ai/events/16240-bird-flu-kills-close-to-a-record-number-of-poultry-in-the-u-s.md) | -0.9% | -2.3% |
| CORN | 2024-07-24 | [Bird flu: Over 100 million chickens are dead. Is the virus here to stay? \| Vox](https://feedsoft.ai/events/29267-bird-flu-over-100-million-chickens-are-dead-is-the-virus-here-to-stay-vox.md) | -1.8% | -4.4% |
| CORN | 2023-08-31 | [PA is bird flu free, but when will consumers see a change in poultry prices at the grocery store?](https://feedsoft.ai/events/34738-pa-is-bird-flu-free-but-when-will-consumers-see-a-change-in-poultry-prices-at.md) | +1.5% | -6.4% |

## Sources

- cpr.org: https://www.cpr.org/2026/02/10/new-world-screwworm-cattle-ranchers/

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