Which herbicide can control both broadleaves and a few annual grasses?

Study for the Pennsylvania State Extension Cool-Season Turfgrass Pest Management Test. Enhance your skills with flashcards and multiple choice questions featuring hints and explanations. Get ready to ace your exam!

Mesotrione is a herbicide that effectively controls a variety of broadleaf weeds and also possesses the ability to manage some annual grasses. Its mode of action involves the inhibition of carotenoid biosynthesis, which leads to the bleaching of susceptible plants. This selective action makes it suitable for use on cool-season turfgrass where both broadleaves and certain grasses are problematic.

The versatility of Mesotrione is particularly valuable in turf management, as it allows for the simultaneous control of undesired weedy species without significantly harming desirable grass types, thereby maintaining turf quality. Mesotrione's effectiveness against specific annual grasses further supports its use in integrated pest management strategies in cool-season environments.

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