Poppy plants with black spots on the leaves - Ask Extension
My poppy plants all have these black spots along the leaves. What are these black spots ? What can I do to save the plant?
Knowledgebase
Poppy plants with black spots on the leaves #869585
Asked May 22, 2024, 10:08 AM EDT
My poppy plants all have these black spots along the leaves. What are these black spots ? What can I do to save the plant?
Osceola County Michigan
Expert Response
Good Morning,
Fungal and bacterial diseases cause black spots on poppy leaves. Overwatering and poor circulation contribute to the problem. Fungicides and bactericides treat spots; cultural practices prevent them. Cleaning up all plant debris and disposing of in the trash can help control the spread. It thrives in moist conditions. If it is around other plants makes sure there is space around each plant for air flow. Water at the base of the plant and if you have a sprinkler system turn it off in the are the poppy is planted. If symptoms persist you may have to destroy the plant.
Black spot - Integrated Pest Management (msu.edu)
Poppy Papaver (ct.gov)
You can also send in a sample to get a firm diagnosis. See attached.
Submit Samples - Plant & Pest Diagnostics (msu.edu)
I hope this helps. Thanks for using our service.
Fungal and bacterial diseases cause black spots on poppy leaves. Overwatering and poor circulation contribute to the problem. Fungicides and bactericides treat spots; cultural practices prevent them. Cleaning up all plant debris and disposing of in the trash can help control the spread. It thrives in moist conditions. If it is around other plants makes sure there is space around each plant for air flow. Water at the base of the plant and if you have a sprinkler system turn it off in the are the poppy is planted. If symptoms persist you may have to destroy the plant.
Black spot - Integrated Pest Management (msu.edu)
Poppy Papaver (ct.gov)
You can also send in a sample to get a firm diagnosis. See attached.
Submit Samples - Plant & Pest Diagnostics (msu.edu)
I hope this helps. Thanks for using our service.
