Add Yahoo as a preferred source to see more of our stories on Google. A fig leaf with brown edges grows on a tree - Amilat/Shutterstock Brown leaves on a tree can be a sign of many different problems.

A new study reveals oak trees delay sprouting leaves by 3 days to avoid being infested by hungry caterpillars, after it ...

The trees' clever tactic to outwit potentially deadly predators was detected by scientists in Germany using satellite data.

Oak trees delay spring leaf-out after caterpillar attacks, reducing damage by more than 50% and revealing a new way trees ...

Not every nest in trees is a bird nest! Here's what a squirrel nest looks like and how to deter squirrels from nesting in your yard.

Many insects, particularly caterpillars, hatch just when the trees' nutrient-rich leaves are still young and soft. This means ...

When oak trees are heavily damaged by caterpillars, they delay opening buds. Research indicates that the strategy is highly ...

Finally, the major damage to the leaves on your lemon tree appears to be the result of grasshoppers or katydids. These ...