The female fly seeks out living animals, depositing her eggs in open wounds, sores, or natural body openings. Within hours, those eggs hatch into larvae that burrow into living tissue, feeding as they go. Unlike many other parasitic flies, New World Screwworm maggots do not feed on dead or decaying matter, they require living flesh to survive, making small entry points into open wounds and turning them into large, infected lesions within days. This makes the damage destructive, aggressive, and without prompt treatment, fatal.
Experienced producers know their animals and if something is amiss, when they see it. But the honest reality of managing a herd across multiple paddocks is that consistent, close-range observation of every individual animal, every day, at the same time, is not always possible. If it were, it would involve the extreme labour costs and time, that makes this almost impossible for producers.
As animals begin to feel unwell, their instinct is often to withdraw. They reduce activity, seek shade or shelter, and move away from open spaces where they are easiest to see. The very animals that most need attention are often the hardest to find.
“Eyes on your cattle” has rightly been stated as the best line of defence. We agree. However, we know that in modern livestock operations with large landholdings, varied terrain, and lean workforces, you cannot be everywhere at once. By the time a visually observed check reveals a problem, the infestation may already be well advanced. In the case of New World Screwworm, hours matter.
CERES TAG has been following the news of the spread and risk of New World Screwworm closely. Our technology was built to address the exact kind of monitoring gap that makes this pest so dangerous.
Each CERES TAG device continuously monitors individual animal behaviour and activity, not just location. Reporting on how that animal is moving, resting, and engaging with its environment. When behaviour deviates from an individual’s baseline, the system detects it. Using direct-to-satellite connectivity, that alert can reach you in real time, on your mobile, wherever you are. No need for towers and reception.
When an animal begins to withdraw from the herd, reduce movement, or behave differently, the kind of subtle early signs that precede visible symptoms, CERES TAG can pick that up. That early warning gives you the window to act before the situation becomes critical.
What This Means in Practice
- Early intervention: Identify animals showing signs of distress before a wound becomes severe, improving treatment outcomes and reducing animal suffering.
- Precise location: Know exactly where in your property an affected animal is, even if it has retreated into brush, dense pasture, or a distant corner of a paddock.
- Movement history: Understand where an animal has been. If a case of New World Screwworm is confirmed, knowing the animal’s recent movement patterns supports rapid contact tracing and containment decisions.
- Herd-wide visibility: Monitor every tagged animal simultaneously, so one alert does not mean the rest of the herd goes unwatched.
- Confidence to prove a clean herd: Continuous, documented behavioural data gives you the traceability to demonstrate herd health to regulators, buyers, and trade partners. A critical advantage if an outbreak occurs nearby.
The threat posed by New World Screwworm is not theoretical. Where this pest has re-emerged, the consequences for producers have been devastating economically, operationally, and in terms of animal welfare. It has been eradicated from much of North America before, at enormous cost and effort. Preventing re-establishment depends on early detection and rapid response.
Technology cannot replace good husbandry. But it can extend your reach, sharpen your awareness, and give you the critical early warning that makes the difference between containing a problem and losing control of it.
CERES TAG continuously monitors individual animal behaviour, connects directly to satellite where ground infrastructure doesn’t reach, and delivers real-time alerts straight to your mobile, because biosecurity threats do not keep business hours, and neither should your monitoring.
If you are in livestock production and have not yet considered how precision animal monitoring technology can strengthen your biosecurity posture, we would encourage you to start that conversation now, before a threat arrives, not after.
The best time to put a system in place is when you don’t yet need it.
Reach out to the CERES TAG team— Real-time individual animal monitoring, direct-to-satellite, wherever your animals are.
