rose worms

mistyrainbowJune 3, 2008

My roses have some type of worm that is burrowing into the rose buds and eating them from the outside in. The leaves are not so much affected, just the buds.Any help out there? Thanks.

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Kimmsr(4a/5b-MI)

What you have is not a worm, but the larva of a gnat like fly. There is not much you can do once the larva is in the blossom, any control must be done before they get that far. Look for egg cases on the leaves, underside usually, and squish them. If you can see the adult flitting around you can spray with Insecticidal Soaps, but be careful about spraying any broad spectrum poison which will also kill off the beneficial insects that will eat these pests.

    Bookmark   June 5, 2008 at 7:11AM
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bodiCA(9/N.CA)

I have been finding these caterpillars eating my rose buds.

    Bookmark   June 5, 2008 at 2:21PM
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Kimmsr(4a/5b-MI)

That looks the larva of one of the Sphinx moths. When they are less than half that size a spray of Bacillus thuringiensis - Kurstaki (BTK) will do a lot to control them, now a pair of pruners will dispatch them very efficiently.

    Bookmark   June 7, 2008 at 7:32AM
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