# Yellow Leaves on Avocado Trees
Avocado (Persea spp.) is a native fruit of Mexico. These evergreen trees have a rapid growth rate, achieving a mature height of up to 80 feet tall. The glossy foliage is dark green and elliptical, and the pear-shaped fruit often has pebbled skin and creamy flesh. A fungal infection is a likely cause of yellow tree foliage.
-
Identification
-
Avocado trees are susceptible to verticillium wilt caused by the Verticillium dahliae or Verticillium albo-atrum fungi. The causal agent is soil-borne and infects tree through the roots.
Damage
-
Yellowing of foliage between the leaf veins characterize the disease. The foliage gradually browns and dies but remains attached to tree for up to several months. There are brown steaks on tree wood under the bark. Branches start to wilt and die. Trees can either recover from disease or die entirely.
Management
-
There is no cure for verticillium wilt. If trees start to produce new growth, prune and remove all affected tree areas. Irrigation and fertilize optimally to encourage new growth. Remove dead trees entirely from root. Avoid planting trees in areas with known prior cases of verticillium.
-
- Arbutus Trees
- Are Elm Tree Leaves Simple or Compound?
- My Avondale Redbud Tree Has Yellow Leaves
- Avocado Tree Wilting
- Brown Leaves on Bay Trees
- Yellow Leaves on a Poplar Tree
- Why Are the Leaves on My Avocado Tree Turning Brown?
- River Birch Tree Is Losing Leaves
- Brown Leaves on a Lemon Tree
- Brown Leaves on a Eucalyptus Tree
- Why Are Orange Tree Leaves Yellow?
- My Avocado Tree Has Brown Leaves
