Learn what powdery mildew on plants looks like and what causes this fungal disease. A garden expert explains the best treatments for powdery mildew.

Ash has continuous bundle scars inside leaf scar looks like "smiley face". Important: A leaf scar is the major botanical feature when keying a green or white ash.

Green ash is usually yellow, white ash often maroon, sometimes with yellow in interior. Autumn purple ash is a cultivar of white ash. Ash leaves are divided into leaflets, usually 5, 7, 9, or 11 ...

Leaf: The leaves are described as "opposite, ... Green ash is similar in property to white ash and they are marketed together as white ash.

The leaves of the invasive Amur corktree resemble white ash leaves. However, its bark is soft like cork and “it has this bright yellow inner bark,” which is made of berberine.

Since 2002, emerald ash borers have killed anywhere from 80% to 99% of mature ash in Southeast Michigan and Northeast Ohio. The death toll: tens of millions of trees. New research offers hope in ...

While ash leaves steal the show this time of year, ... It grows 5-8 feet tall and 4-6 feet wide and starts with white flower clusters in May that turn into bird-loved small black fruits in late ...

Ash trees are typically between 50 and 80 feet tall, and there are a few different varieties including the white ash tree, green ash tree, and black ash tree. Most of them have five to nine leaves ...