Knockout Rose Bushes

something is eating leaves on knockout roses

Zone Alabama | fngilroy added on April 19, 2015 | Answered

The entire leaf is gone with only the veins left. Unable to see any insects on stems or flowers. Flowers are not affected.

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    Certified GKH Gardening Expert
    Answered on April 25, 2015

    Sounds like a worm of some kind (likely the rose slug) that is feeding upon the roses. Here is a link to an article on them for you: I recommend spraying the rosebushes with an insecticidal soap for quick help and then perhaps give them some Bayer Systemic rose and flower care granules. I do not like using the systemics, however at times a treatment is needed to gain control over a formidable foe.

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