Yes Inchworms can and do kill trees as well as other plants.
Inchworms are a wonderful thing and we do need the Inchworms for the environment however Inchworms can be devastating to trees and other plants.
So if you have Inchworms and they are crawling on trees and plants that you don't want to be killed or harmed then you will need to get rid of the Inchworms.
Inchworms can change in color when they need to or want too.
Inchworms can be a variety of different colors as well such as green, dingy white and gray brown in color.
Some Inchworms will change color when needed while others may stay the same color if they don't want to change color or need to change color.
Also Inchworms do have brains.
All worms including Inchworms have brains and the Inchworms and other worms brains connect with nerves from their skin and muscles.
The Inchworms nerves that connect to the brain detect light, vibrations, and even some tastes, and the muscles of their bodies.
Just like humans and other animals the Inchworms and other worms breathe air but unlike humans and other animals the Inchworms do not have any lungs.
The brains that Inchworms have is different than human brains though but they do have brains.
The brain in the Inchworm is also tiny and is connected differently than humans brains or other animals brains.