Master Gardener Decision Support Guide

Woody Ornamentals

Rose

Short cuts for Rose Answers

The following problems are listed for this plant and considered when developing the diagnostic key. If the caller provides accurate answers to the questions, the ones that are linked should key out to that specific problem. The unlinked problems are expected to key to the point where the caller is asked to submit a sample. These samples will often require diagnostic procedures such as soil testing, pathogen culture, Elisa or other test beyond the resources of the average Master Gardener Volunteer or County Extension Agent.

Insects:
Caterpillars:
Archips argyrospila (fruittree leafroller)
A.cerasivorana (uglynest caterpillar)
A.rosanus
Argyrotaenia citrana (orange tortrix)
Automeris io (io moth)
Choristoneura rosaceana (obliquebanded leafroller)
Lithophane antennata (green fruitworm)
Malacosoma disstria (forest tent caterpillar)
Orgyia leucostigma (whitemarked tussock moth)
Pandemis limitata (leafroller)
Rheumaptera hastata (spear-marked black moth)
Schizura concinna (redhumped caterpillar)
Tischeria admirabilis (blotch leaf miner)
? (budworm)

Spider mites:
Tetranychus canadensis (fourspotted spider mite)
T.urticae (twospotted spider mite)

Sawfly:
Allantus cinctus (curled rose sawfly)
Cladius difformis (bristly roseslug)
Endelomyia aethiops (roseslug)

Gall wasp:
Diplolepsis
D. bicolor (spiny rose gall wasp)
D.dichlorcera (long rose gall wasp)
D.rosae (mossyrose gall wasp)

Aphids:
Macrosiphum euphorhbiae (potato aphid)
M.rosae (rose aphid)
Wahlgreniella nervata

Scale:
Asteroloecanium arabidis (pitmaking pittosporum scale)
Aspidiotus nerii (oleander scale)
Alacaspis rosae (rose scale)
Chrysomphalus dictyospermi (dictyospermum scale)
Hemiberlesia lataniae (latania scale)
Icerya purchasi (cottony cushion scale)
Parlatoria pittospori
Parthenolecanium pruinosum (frosted scale)
Pinnaspis strachani (lesser snow scale)
Pulvinaria innumerabilis (cottony maple scale)
Quadraspidiotus perniciosus
Saissetia oleae (black scale)

Other Insects:
Frankliniella sp.
F.occidentalis (western flower thrips)
F.tritici (flower thrips)
Graphocephala atropunctata (blue-green sharp-shooter)
Planococcus citri (citrus mealybug)
Trialeurodes vaporariorum (greenhouse whitefly)
? (Fuller rose beetle)
? (Japanese beetle)
? (root weevil)

Disease:
Agrobacterium tumefaciens (Crown Gall)
Alternaria alternata (leaf spot)
Botryosphaeria dothidea (Dieback)
B.obtusa (Dieback)
B.rhodina (Dieback)
Botrytis blight (Gray mold)
Diplocarpon rosae (Black spot)
Elsinoe rosarum (Anthracnose)
Erwinia amylovora (fireblight)
Sphaerotheca pannosa (powdery mildew)

Other Pests:
Voles

Return to Roses, Woody Ornamentals, Master Gardener Decision Support Guide

Designed by David Goforth on December 30, 1997.
Contents modified on February 17, 1998.
Contents checked on February 17, 1998.