What describes a plant that is injured or killed due to an inability to tolerate herbicide treatment?

A plant that is described as being injured or killed due to an inability to tolerate herbicide treatment is referred to as susceptible. This term specifically denotes plants that are affected by herbicides, meaning they do not have the capacity to withstand the chemicals and subsequently suffer damage or die when exposed to them.

In the context of weed management, understanding susceptibility is vital, as it helps in choosing effective herbicides for controlling unwanted vegetation. For instance, susceptible plants can be effectively managed with specific herbicides that target them. This is crucial for developing integrated pest management strategies.

On the other hand, the term resistant would indicate a plant's ability to survive herbicide exposure, which is the opposite of what is described in the question. Tolerant pertains to plants that can endure herbicide treatment without suffering harm, and invincible suggests immunity, which is not an established term in weed management. Thus, susceptibility accurately reflects the relationship between a plant and herbicide treatment outcome.