What type of pesticide is known to injure or damage a plant?

The term "phototoxic" refers to a type of pesticide that can cause harm to plants, particularly when they are exposed to light. This can happen because certain chemicals in these products can become more active and damaging in the presence of light, leading to injury or damage to the plant's leaves and tissues. Such phototoxicity might manifest as symptoms like leaf burn or other forms of stress that impair plant health.

Herbicides, in contrast, are specifically designed to target and kill unwanted plants (weeds), and while they can damage non-target plants if misapplied, they are not classified under phototoxic agents. Pesticides is a broad term that encompasses various substances used to control pests, including herbicides, insecticides, and fungicides, but it does not specifically denote those that harm plants. Fungicides, while effective against fungal diseases in plants, are also not known to cause damage to the plants themselves in the same way that phototoxic substances can.