NC Cooperative Extension   Service

Master Gardener Decision Support Guide

Perennials

Canna


Shortcuts for Canna Answers

The following problems are listed for this plant and were 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:
Beetles:
Asyonychus godmani (Fuller rose beetle)
Cotalpa lanigera (Goldsmith beetle grub)
Diabrotica undecimpunctata howardi (Spotted cucumber beetle)
Popillia japonica (Japanese beetle)
Sphenophorus sp. (Billbugs)

Caterpillars:
Calpodes ethlius (Larger canna leafroller)
Estigmene acrea (Saltmarsh caterpillar)
Geshna cannalis (Lesser canna leafroller)
Helicoverpa zea (Corn earworm)
Sibine stimulea (Saddleback)
Spilosoma virginica (Yellow woollybear)
Udea rubigalis (Celery leaftier)

Scales:
Hemiberlesia lataniae (Latania scale)

Others:
Planococcus citri (Citrus Mealybug)
Macrosiphum euphorbiae (Potato aphid)

Diseases:
(Aster Yellows)
(Mosaic)
Puccinia sp.(Rust)
Xanthomonas sp. (Bud rot)
Return to Canna, Perennials, Master Gardener Decision Support Guide


Designed by Cyndi Lauderdale on January 10, 2000.
Contents modified on August 2, 2000.