The International Potato Center (CIP) has launched a website on the Potato Purple Top Complex, one of the most serious threats to potato production in the Andes, with a risk map showing where it could spread in South America. The site went live on 6 October.
Purple top is a complex of pests and diseases spread by psyllids, small sap-sucking insects that carry pathogens from plant to plant. It causes a defect known as zebra chip and cuts yields sharply. Under epidemic conditions crop losses can reach 100%, and the complex also attacks tomatoes and chilli peppers.
In a widespread outbreak, CIP says, annual losses in Peru could reach US$109 million across nearly 125,000 hectares of potatoes. Peru is on high alert, and warm temperatures linked to a coastal El Nino would favour psyllid populations.
The website explains the insect vector, the phytoplasmas and zebra chip and their symptoms. CIP says the risk map and early identification could help Peru avoid a repeat of Ecuador's 2018 crisis, when some areas lost up to 100% of their crop. Working with Peru's National Agrarian Health Service (SENASA), farmers can request training, plant when psyllid numbers are low and choose cleaner seed sources, and better prediction could reduce pesticide use.
CIP is also building new tools. According to researcher Heidy Gamarra, a team is developing an artificial intelligence app that lets farmers identify the insect, recognise symptoms and find management advice. The app will be connected to automated traps that monitor insect numbers and feed an early detection and warning system.
CIP calls the website a first step in regional cooperation to protect potato production and food security in the Andes.
Source: International Potato Center
Comments
(0)