Save Our Citrus - Is Your Tree Sick?

Save Our Citrus - Is Your Tree Sick?

WHAT’S YOUR TREE HIDING? CHECK FOR CITRUS DISEASES. Do you have a citrus tree in your yard? Have you had a close look at it lately? Your tree might be hiding the signs of citrus disease. Click the plus signs below to learn more.

Asian citrus psyllid


Asian citrus psyllid (ACP) spreads citrus greening disease (Huanglongbing). It is brown and about the size of an aphid. Take a close look though because this little pest can be as small as the head of a pin. To inspect for the Asian citrus psyllid, you should look for it on the tree leaves, especially on any tiny new leaves (feather flush growth). You can use a magnifying glass or hand lens to aid this inspection. Want to learn more about this little pest? Check out the video!
Citrus Greening Disease Fruit


Symptoms of Huanglongbing (citrus greening disease) include spotted or blotched leaves, or leathery leaves with yellow or clear veins.
Citrus greening disease - leaves


Symptoms of Huanglongbing (citrus greening disease) include spotted or blotched leaves, or leathery leaves with yellow or clear veins.
Citrus Greening Disease — Fruit


Symptoms of Huanglongbing (citrus greening disease) include small, lopsided green fruit or fruit that retains green color on the bottom
Sweet Orange Scab — Fruit


Symptoms of sweet orange scab include small, raised lesions on the fruit.
Sweet orange scab - leaves


Symptoms of sweet orange scab include rusted colored lesions on leaves.

Report any symptoms


Did you find any of these symptoms on your trees? You can easily report suspected citrus disease by:

  1. Fill out the online reporting form on our Report It page.
  2. Call or email your USDA State Plant Health Director’s office at http://1.usa.gov/1tYZbsb.
Citrus Black Spot


Symptoms of citrus black spot include fruit with speckled spots and fruit with hard black spots.
Sweet Orange Scab — Fruit


Symptoms of sweet orange scab include small, raised lesions on the fruit.

How to inspect your citrus tree

You can help prevent citrus diseases by inspecting your citrus trees monthly. Slowly walk around each tree and inspect the leaves (top and bottom), the fruit and the overall tree canopy. You can use a step-ladder or binoculars if the tree is tall. Look for the various symptoms identified on this page.

Check Your Citrus Trees Regularly

The time has come to start checking all of your citrus trees regularly to protect them from devastating new diseases. The four citrus diseases found in the United States include Huanglongbing (also known as citrus greening), citrus canker, citrus black spot and sweet orange scab. Click the other plus signs to learn more.



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