True or False: The more actively a weed is growing, the easier it is to control with herbicides.

The statement that the more actively a weed is growing, the easier it is to control with herbicides, is true. Actively growing weeds are usually more susceptible to herbicides because they are in a phase where they are taking up more nutrients and liquids, which makes them more receptive to the active ingredients in herbicides. When weeds are growing vigorously, they are generally developing new tissues, which can absorb herbicides more effectively.

Furthermore, the physiological processes of the weeds—such as photosynthesis and nutrient uptake—tend to be heightened during active growth. This increased metabolic activity allows herbicides to be translocated within the plant more efficiently, leading to more effective control.

In contrast, dormant or stressed weeds often show reduced herbicide absorption and translocation, which can result in poor control. Thus, the correlation between active growth and susceptibility to herbicides highlights why timely application during the peak growing season is crucial for effective weed management.

Other considerations such as the specific type of herbicide, the environmental conditions, and the weed species can influence control effectiveness, but the fundamental principle remains that actively growing weeds respond better to herbicide applications.