Editing Passiflora edulis (section)

====Viruses====
[[Passion fruit woodiness virus]] is one of the most well-known viruses to the passion fruit. It belongs to the ''[[Potyvirus]]'' group and can attack a plant at any age from nursery to mature plants. Some features include yellow leaves that display distortion in the leaf length and shape. As well as affecting the leaf, this virus influences fruit shape and size. Affected fruits become stone-like and much smaller than normal, with many fruits becoming scabbed and cracked. The virus is spread by sap-sucking insects such as aphids and mites. Woodiness can also spread through vegetation propagation such as infected scions or contaminated tools. There is no chemical control for this virus once the plant is infected, but the use of clean planting material can reduce its dissemination.<ref name="passion fruit woodiness">{{cite book|url=http://www.globalsciencebooks.info/JournalsSup/images/0812/PT_2(1)1-19o.pdf |author=Fischer, Ivan H. |author2=Rezende, Jorge A. M.|year=2008|title=Pest Technology: Diseases of Passion Flower (''Passiflora'' spp.)|publisher=Global Science Books|access-date=13 December 2014|archive-url=https://web.archive.org/web/20140818190841/http://www.globalsciencebooks.info/JournalsSup/images/0812/PT_2(1)1-19o.pdf|archive-date=18 August 2014}}</ref>

One of the most serious viruses pertaining to vegetation is the [[cucumber mosaic virus]]. In the passion fruit, this virus appears with yellow mottling on leaves starting at random points on the vine and diminishing in intensity towards the tip. Expanding leaves typically become twisted, curl downward, and develop a "shoestring" appearance as a result of a restriction of the leaf surface. It is mobile and can spread easily through interactions with other plants such as brushing between leaves. This virus is naturally transmitted through aphids and can also be transmitted mechanically through seedlings. Varietal resistance is the primary management tool, and eliminating weeds and infected perennial ornamentals that may harbor the virus is critical. Once the plant has been infected, there is no possible management or control for the virus.<ref name="passion fruit woodiness" />