The Cassava Association survey for the 2026/27 season (2569/70) projects harvested area up 2.29% to about 6.77 million rai, but yield per rai down 1.32% to about 2.77 tonnes, so total output rises only 0.94% to about 18.75 million tonnes. Leaf-mosaic disease and a shortage of healthy stem cuttings are the main drags, with Kamphaeng Phet, Nakhon Ratchasima and Kanchanaburi hit hardest. Farmers are also digging cassava early because of good prices and cash-flow pressure, so expect tight fresh-root supply and possible starch or feed input cost pressure. Businesses that buy cassava should lock in supply early; those selling inputs or cuttings should watch demand for clean planting material.