What is a key factor to consider when timing the application of granular 2,4-D?

The timing of the application of granular 2,4-D is crucial for its effectiveness, particularly when considering the growth stages of submerged weeds. Granular 2,4-D is a systemic herbicide that works best when the target plants are actively growing. Synchronizing the application with the rapid root growth of submerged weeds ensures that the herbicide is taken up effectively, which can lead to better control of these aquatic plants.

When submerged weeds are in a period of active growth, they are more vulnerable to herbicides because they are transporting nutrients and chemicals throughout their systems. This means that applying 2,4-D during this specific growth phase increases the likelihood of the herbicide being absorbed and translocated within the plant, leading to more effective management of the weed problem.

Other factors may influence herbicide application timing, such as weather conditions or the life cycles of other organisms, but aligning the application with the growth of the target weeds maximizes the success of the treatment plan.