less insects will feed on the yacón plants. Furthermore, different Badnaviruses infect the yacón plant. The Yacon necrotic mottle virus infects yacón (Smallanthus sonchifolius) and causes necrosis, chlorosis, stunting and malformation of leaves. Yucca bacilliform virus leads to damage as chlorotic lesions on the leaves. The lesions disperse along the leave veins and increase in intensity towards the tips whereby the lesions gradually turn necrotic. See also New World crops References Further reading (Also available in Spanish.) 31 pages. Available in Spanish . 60 p. External links Yacón description from the Australian New Crops Newsletter Crops for the Future: Yacon (Smallanthus sonchifolius) Smallanthus Root vegetables Flora of the Andes Flora of western South America Crops originating from Peru Prebiotics (nutrition) Perennial vegetables Taxa named by Eduard Friedrich Poeppig