Which herbicide is known to be moderately toxic to animals?

Prepare for the Oregon Agriculture Herbicide Exam. Study with flashcards and multiple-choice questions, complete with hints and explanations. Boost your confidence and pass with ease!

Phenoxy herbicides, which include substances like 2,4-D, are known to be moderately toxic to animals. This toxicity can vary based on the specific type of phenoxy herbicide, the dose, and the type of animal exposed. These compounds can lead to various health effects in livestock and wildlife, particularly if ingested or absorbed through the skin.

The moderate toxicity associated with phenoxy herbicides is largely due to their ability to disrupt hormonal systems in animals. For instance, phenoxy compounds can mimic plant hormones and thus have unwanted effects on animal physiology when absorbed in sufficient quantities.

In contrast, glyphosate is generally considered to have low toxicity to animals and is often seen as safe for use around livestock when applied according to label instructions. Thiocarbamate herbicides also pose a lower toxicity risk compared to phenoxy herbicides. Lastly, 2,4,5-T, while historically used, is less frequently used nowadays due to its severe toxicity and environmental concerns, though it does exhibit higher toxicity levels compared to some other herbicides.

Understanding the toxicity profiles of herbicides is crucial for safe application and management practices in agricultural settings, leading to better protection of both the environment and animal health.

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