Rhubarb leaf damage - Ask Extension
What is causing this damage to my rhubarb leaves? (picture attached)
Knowledgebase
Rhubarb leaf damage #666647
Asked July 20, 2020, 5:47 PM EDT
What is causing this damage to my rhubarb leaves? (picture attached)
Dakota County Minnesota
Expert Response
That looks like insect damage possibly four lined plant bug. As it is so late in the season for rhubarb I wouldn't worry about it. You could try watching for insects though and then use insecticidal soap if you find some. https://extension.umn.edu/yard-and-garden-insects/four-lined-plant-bugs
Thank you.