A sticky substance produced inside a tree. Maple syrup is made from sap!
The visible presence of a pest or disease; for example, fruiting bodies of fungi, southern pine beetles, or caterpillars are all signs.
To reduce to the most basic skeleton. Leaf skeletonization occurs when young pests eat the tender part of a leaf, leaving the heavy veins and stem.
Tiny specks that carry the reproductive material to form a new fungus, similar to the seeds of a plant.
Symptoms are visible clues that a plant might be suffering from a pest or disease. Some examples of symptoms include wilting, brown or yellow leaves, bark discoloration, and slowed growth.