Dear Robin:

Thanks for contacting the UVM Extension Master Gardener Helpline regarding the  problem with your plant. Please tell us what the plant is so we can focus on issues with the particular plant.

We look forward to hearing from you.

Regards,

Pat

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Dear Robin:

The UVM extension plant pathologist identified the plant in your pictures as rudbeckia that has been affected by the rudbeckia psyllid nymph.
To control it, she suggests that you could try Neem or insecticidal soap. We attach a link to a resource that provides additional information.

https://ag.umass.edu/greenhouse-floriculture/photos/rudbeckia-psyllid-nymph#:~:text=Rudbeckia%20psyllid%20nymphs%20cause%20large,and%20sucking%20out%20plant%20juices.

Good luck.

Pat

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