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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!

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.

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.

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.

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 - leaves

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

Sweet orange scab - fruit

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

Sweet orange scab - fruit

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

Citrus Black Spot

Symptoms of citrus black spot include fruit with speckled spots and fruit with hard black spots.

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.

IS YOUR CITRUS SICK?

By reporting signs of citrus disease, you’re helping save our citrus! The symptom checklist and corresponding photos below will help you identify the key symptoms of a plant infected by citrus greening, citrus canker, citrus black spot and sweet orange scab.

If you think you have identified an infected plant, report it immediately. To avoid spreading the disease, do not move your plant. Just fill out the form below or call your USDA State Plant Health Director’s office.

If you are younger than 18 years of age, please ask a parent, guardian or trusted adult to help you submit your report.

Thanks again for helping stop the spread of citrus disease!
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REPORT FORM

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Please describe the location. Try to be specific: i.e. cross streets, trees in your yard, neighborhood, etc.


Choose your symptoms
Check all the signs or symptoms that you have identified.

Citrus Greening


 Leaves spotted or blotched

 Leathery leaves with yellow or clear veins

 Small, lopsided green fruit

 Fruit that retains green color on bottom

Citrus Canker


 Leaf with brown raised spots

 Fruit with brown raised spots

Citrus Black Spot


 Fruit with speckled spots

 Fruit with hard black spots

Sweet Orange Scab


 Rusted colored lesions on leaves

 Small, raised lesions on fruit

Upload your photo
Submit up to two photos of the citrus disease symptoms you found. Acceptable file types: png, jpg, jpeg. File size limit 2MB.