Topramezone (CAS NO : 210631-68-8)

Topramezone is a selective herbicide used post-emergence to control broadleaf and grass weeds in crops like corn.

It inhibits the enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD), disrupting carotenoid biosynthesis in target plants, leading to bleaching and death of the weeds.

When used as directed, Topramezone has low toxicity to mammals. However, it is classified as a reproductive toxin (Category 1B), so appropriate precautions should be taken during handling and application.

Yes, it can be tank-mixed with other compatible herbicides to broaden the spectrum of weed control. Always refer to the manufacturer's guidelines for specific mixing instructions.

It is primarily used in corn (field corn, sweet corn, and popcorn) to manage various weed species.

Topramezone is very toxic to aquatic life with long-lasting effects. Avoid application near water bodies and ensure proper measures to prevent runoff.

As with any herbicide, repeated use of Topramezone alone can lead to the development of resistant weed populations. It is advisable to use it as part of an integrated weed management program, rotating with herbicides of different modes of action.