Dana Nodler
Dana Nodler
  • Hometalker
  • Austin, TX
Asked on Jun 7, 2013

Gardening

Dana NodlerDouglas Hunt

Answered

How do you treat leaf rollers on your canna leafs. They roll-up my large leaves like
a cigar? Any advise would be appreciated.
2 answers
  • Douglas Hunt
    on Jun 8, 2013

    Dana, if you don't want to go the unroll-and-squash route, you could use Bt, Bacillus thuringiensis, a microbial insecticide. which is sold as a variety of products, but it is most effective against the larval stages of leafrollersTo lessen your chances of having a recurrence next season, make sure you do a thorough cleanup in the fall. Cut the plants to the ground, remove all the foliage and surrounding mulch and dispose of it in the garbage, not your compost pile. That should eliminate most of the caterpillar eggs that could over-winter in the old leaves and stalks.

  • Dana Nodler
    on Jun 8, 2013

    thanks Douglas for the tip, so the treatment is done at the end of the season in the fall for me as I'm in TX?

Your comment...