Administration:
Consulting Rosarians
Officers
History of MRS
MRS Public Garden
Bronze Medal Awards
By-Laws
Standing Rules
Reimbursement Form

Membership:
Join Marin Rose Society!
Newsletter sample
Join the ARS

Upcoming Events:
Programs

Rose Culture:
Diseases
Fertilizing
Garden Good/Bad Guys
Great Roses
Hybridizing
Planting
Pruning
Watering
Annual Rose Care
Monthly Rose Care
Rose of the Month

Rose Purchasing:
Buying Roses
Mail Order Sources

Rose Shows:
Annual Rose Shows
MRS Trophies

Misc:
Poet's Corner
Rose Books
Rosey Links
Site Map
Members Only

European Rose Slug

FAST FACTS - Rose Slugs
by Nanette Londeree, Master Rosarian

SIGNS

  • Eggs singly in pockets along the margins of the leaves
  • European rose slug - usually found on the top of the leaf
  • Bristly rose slug larvae - found on the underside of the leaf
  • Curled rose slug - curled like a naked snail and attached to the undersides of the leaves

    Curled Rose Slug SYMPTOMS

  • Leaves with only veins and one epidermis resulting in a "window pane" appearance that may turn brown and crispy
  • Leaf undersides scraped, “skeletonized”
  • Large holes in leaves
  • Entire leaves eaten except the main veins

    CAUSE

    Skeletonized Leaf

  • Immature stages of sawflies (primitive wasps): European roseslug, Endelomyia aethiops; the curled roseslug, Allantus cinctus; and the bristly rose slug, Cladius difformis

    TREATMENT

    Prevention:

  • Maintain good garden sanitation
  • Promote a habitat for birds
  • Check your roses regularly for signs of damage, and if you see them, remove the affected leaves and destroy

    Elimination:

  • Hand pick and spray off with a strong spray of water
  • Use neem oil or insecticidal soaps being sure to spray both the top and undersides of the leaf
  • Use horticultural oil when they are first attacking - will work and is a very safe alternative
  • Any contact or systemic insecticide labeled for use on roses will kill the roseslugs, particularly those that contain cyfluethrin

    GOOD GUY / BAD GUY?

  • A really big nuisance, creating unsightly foliage, potentially weakening the plant

    Photos courtesy of Baldo Villegas.


    Return to the Main Page

    Google
    Search WWW Search marinrose.org


    Contact us
    © Marin Rose Society
    All Rights Reserved
    Last Modified: 08/06/2013