Longan Prone to Phytophthora: How to Protect

Phytophthora on Longan: What to Know?

Phytophthora on Longan (Dimocarpus longan) is a other condition with moderate severity. Longan has high susceptibility to this disease. The Phytophthora genus consists of soil-borne oomycetes (water molds) that act as plant pathogens, primarily affecting trees and woody plants. It typically spreads through the root system, leading to...

Longan is a medium-care plant.

Longan is highly susceptible to Phytophthora, unlike most plants in the same family.

• ✓ Ensure proper soil drainage to prevent waterlogging and saturated conditions.
• ✓ Utilize resistant species and cultivars, and ensure all seeds and seedlings are healthy and certified disease-free.
• ✓ Implement crop rotation and avoid planting susceptible crops in soil known to be infested with Phytophthora.
• ✓ Apply preventative chemical treatments if necessary, such as copper-based sprays or phosphonates, though be mindful that over-reliance can lead to resistant strains.
• ✓ Sanitize tools, pots, and hands thoroughly to prevent the transmission of the pathogen.