Preventing The Phenomenon Of Durian Leaf Burn During The Dry Season In The Mekong Delta

Caring for durian to always achieve high productivity and the best fruit quality is the biggest concern for farmers. So how can we prevent the phenomenon of durian leaf burn during the dry season in the Mekong Delta? Let’s explore Baconco’s secrets for ensuring durian trees grow healthily and are free from diseases!

Causes of durian leaf burn

Durian, known as the "king of fruits," requires careful attention, especially during the dry season. One of the most common issues is leaf burn, which not only weakens the tree but also seriously affects productivity. Here are three main causes of this phenomenon:

Lack of water and soil that cannot retain moisture:

The dry season is often accompanied by high temperatures and low humidity, causing the plants to lose water quickly. If not irrigated properly, the roots cannot absorb enough water to nourish the entire leaf canopy, leading to leaf burn. Additionally, soil that does not retain moisture for long also increases the risk of drought.

Fertilizers containing high levels of Chlorine:

Some fertilizers on the market contain high levels of Chlorine (Cl), which can cause toxicity to the plants when used for a long time. Chlorine accumulation in the soil or roots will affect the absorption of water and nutrients, causing the leaves to burn from the edges and then gradually spread.

Fungal attacks:

In dry conditions, durian trees often weaken, creating favorable conditions for fungi such as Rhizoctonia solani to attack. Fungi can damage the root system and nutrient transport system, causing the leaves to turn yellow and burn.

The fungus Rhizoctonia solani attacks leaves below ground then spreads upward. Image: Internet

Using imbalanced foliar fertilizers:

Using foliar fertilizers with high nitrogen content but unbalanced can thin and weaken the leaves. This is because the leaves tend to absorb more water, making their structure weak and more susceptible to burning and damage from harsh weather conditions.

Impact of the northeast monsoon:

The northeast monsoon is a significant weather factor that causes damage during the dry season. When high temperatures combine with low humidity, the leaves lose water quickly, leading to leaf burn. In particular, leaves facing east are often the first and most severely affected due to direct exposure to strong winds and sunlight.

Plants experiencing "stress” during the water restriction phase for flowering:

The water restriction phase for durian flowering is a sensitive time; if not taken care of properly, the trees can easily fall into a state of "stress”. Signs of leaf burn usually appear about 30-40 days after the flowers have formed, but the actual damage begins from the bud stage—when the tree is differentiating flower buds. This is the phase when the plant needs balanced nutrients and moisture to maintain overall health.

Solutions to address durian leaf burn

The phenomenon of leaf burn in durian during the dry season is a major concern for many farmers. To effectively remedy this situation, apply three steps in conjunction with specialized products from BACONCO — a comprehensive, safe, and optimal solution for crops.

Maintain soil moisture and provide organic nutrients:

Using organic fertilizers is a solution that will help retain soil moisture longer, improve soil quality, and create an ideal environment for root development. Use ANIMA and ORGANICONCO organic fertilizers to help durian trees:

• Maintain moisture: Organic fertilizers help the soil retain moisture longer, improving the plant's water absorption capacity.
• Supplement nutrients: Provide all necessary nutrients for the plant to recover and develop.
• Increase the effectiveness of chemical fertilizers: Reduce fertilizer leaching, helping the plant absorb nutrients optimally.

Use chlorine-free fertilizers to protect leaves:

Instead of using chlorine-containing fertilizers that can lead to chlorine accumulation in the soil, burning the roots and leaves, farmers should use 100% SOP CON CO fertilizers. For example: NPK CON CO 20-15-10 ANTI-ALUM, NPK CON CO 16-16-8 ANTI-SALINITY, NPK CON CO 12-11-18, NPK CON CO 15-15-15, and NPK CON CO 7-7-14:

• Chlorine-free: Helps reduce leaf burn and safely protects the durian tree.
• Increase yield and quality: It contains essential nutrients for the plant to grow healthily and achieve high productivity.

Spray antifungal agents:

Timely prevention and eradication of fungal diseases are crucial to saving crops. Use CO-VIL 110SC and CO-MYCIN to help:

• Eliminate fungal diseases: Quickly kill fungi, protecting the plants from dangerous pathogens.

• Prevent disease on time: Support antifungal resistance, preventing the spread of fungal diseases.

Caring for durian is not only a task that requires experience but also the companionship of quality products. With the solutions from Baconco, farmers can effectively remedy the phenomenon of leaf burn, helping the plants stay healthy and increase productivity significantly. Baconco accompanies farmers, providing scientific solutions for bountiful harvests. Contact us now for a consultation!