Fluroxypyr is a herbicide used to control broadleaf weeds in crops such as corn, soybeans, wheat, and grasslands. Its chemical name is 4-amino-3,5-dichloro-6-fluoro-2-pyridinecarboxylic acid and it belongs to the pyridine family of chemicals.

Fluroxypyr works by disrupting the growth and metabolism of susceptible plants. When applied to a plant, it is absorbed by the leaves and moved throughout the plant's vascular system to the roots. Once there, it inhibits the plant's ability to produce auxin, a hormone necessary for the plant's growth and development. The inhibition of auxin slows the plant's growth and ultimately results in the plant's death.

Fluroxypyr has a selectivity for controlling broadleaf weeds, meaning it does not affect grasses. This makes it ideal for use in crops such as corn and wheat, which are monocotyledonous plants (meaning they only have one cotyledon or seed leaf) and are therefore less susceptible to the effects of Fluroxypyr.

Fluroxypyr is available in different forms such as liquid concentrate, dry powder, and granular formulations. It can be applied to crops using a variety of methods such as spraying, rubbing, or injecting. The effectiveness of Fluroxypyr depends on the timing and method of application, as well as the specific species of weed being targeted.

Fluroxypyr is considered to be a relatively safe herbicide for humans and wildlife when used according to label instructions. However, it is important to use it with caution and follow all safety guidelines to minimize any potential risks.