In recent years, the area of citrus trees in the Mekong River Delta has increased significantly, due to the high profits of intensive growers. However, the increase in acreage and intensification causes growers to face many challenges.

One of the top challenges is the complication of the pest situation. Gardeners have to live with dangerous pests such as yellow leaf disease, green veins, ulcers, scabs, red spiders, fruit borers, yellow leaf rot, root rot... In which  root rot yellow leaf is the most ominous pest.