Q.Knockout rose bush
Zone 19425 | Anonymous added on June 6, 2018 | Answered
Leaves on my knockout rose bush have holes in them and white spots on them.
Answered on June 10, 2018
A picture would help a lot! Your bushes may have rose slugs, whiteflies or midges. Here is a run-down of pests to carefully look for on your roses. https://extension.illinois.edu/roses/disease.cfm
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