Green vegetable prices have increased at retail markets in Ho Chi Minh City due to production decreases from prolonged rain, insufficient supply, and concerns over disease. The decrease in the quantity of goods returned to the market in the last two weeks, particularly from Don Duong and Tung Nghia in Lam Dong, has also contributed to the price increase. Factors such as saline intrusion, drought, and high production costs have led some farmers to stop sowing.