- Worldwide distribution. Two viruses occur, either alone or more often together in cultivated and wild passionfruit. An important disease.
- The disease causes distorted leaves and small fruits, but seriousness depends on variety and virus strains.
- Spread is by aphids. The viruses are not seed borne.
- Cultural control: take scions from disease-free plants, and rootstocks from seed; carefully check every plant for symptoms before field planting; avoid planting near known hosts of Cucumber mosaic virus, e.g., banana, capsicum, chilli, cucurbits; weed (i.e., wild passion flowers); plant tolerant hybrids (yellow x purple).
- Chemical control: none recommended.
Pacific Pests, Pathogens, Weeds & Pesticides
Passionfruit woodiness (156)
Photo 1. Characteristic spotting and yellowing of leaves from infection by Passion fruit woodiness virus.
Photo 2. Leaves of passionfruit infected with Passion fruit woodiness virus showing yellow spotting throughout the leaf.
Passionfruit woodiness potyvirus (PWV) and Cucumber mosaic cucumovirus (CMV). Both these viruses can cause woodiness symptoms alone, but often they occur together.
AUTHOR Grahame Jackson
Information from (and Photo 2) Gerlach WWP (1988) Plant diseases of Western Samoa. Samoan German Crop Protection Project, Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) Gmbh, Germany; and from (including Photo 3) Diseases of fruit crops in Australia (2009). Editors, Tony Cooke, et al. CSIRO Publishing.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.