RAMBUTAN FRUIT DEVELOPMENT – NO WORRIES ABOUT POWDERY MILDEW IF DONE RIGHT?

18 Aug 2025

Proper care during rambutan fruit development helps prevent powdery mildew. Discover 3-product solution protects fruit, boosts growth, and improves yields by BACONCO.

Caring for rambutan trees the right way during the fruiting stage ensures healthy growth and high-quality yields. Using NPK CONCO fertilizer in combination with MICROTHIOL and COFOLI AMINO + COFOLI MAX36 improves nutrition, protects trees from diseases, and optimizes productivity. Let BACONCO guide you through effective care methods in the article below.

Why is rambutan prone to fruit cracking during the rainy season?

The rainy season brings unpredictable weather changes, making rambutan fruit susceptible to shock and cracking. To ensure good fruit development, providing adequate and balanced nutrition is crucial. Rambutan trees require a well-balanced nutrient supply to withstand harsh weather conditions.

Comprehensive rambutan care with BACONCO’s 3-product solution

Proper rambutan care requires a combination of nutrient fertilizers, disease prevention, and supplemental feeding. Below are 3 effective solutions to help trees grow strong and produce high-quality fruit:

Balanced NPK CONCO fertilizer – The optimal choice for rambutan fruit development

NPK CONCO 16.16.16+5S+0.1Zn+0.05B and NPK CONCO 17.17.17+4S+0.1Zn+0.03B provide essential nutrients such as Nitrogen (N), Phosphorus (P), Potassium (K), along with macro, secondary, micro-nutrients and Amino Acids. These help rambutan trees grow strong, develop evenly, improve fruit quality, and minimize cracking and fruit drop.

Application guidelines:

  • Dosage: 0.3 – 0.5 kg / tree
  • Method: Apply around the canopy, every 15–20 days

Using balanced NPK fertilizers like NPK CONCO 16.16.16+5S+0.1Zn+0.05B and NPK CONCO 17.17.17+4S+0.1Zn+0.03B ensures healthy, even growth and high-quality fruit, while reducing cracking and drop for optimal yield and product value.

Protecting rambutan from powdery mildew with MICROTHIOL

Powdery mildew is a common disease affecting rambutan flowers and young fruits. For effective prevention, farmers should use MICROTHIOL. This product contains up to 80% Sulfur (S), helping prevent powdery mildew and protect trees throughout the rainy season.

Usage: Spray directly on leaves, flowers, and young fruits when there’s a risk of disease outbreak or at the first sign of symptoms.

Enhancing rambutan nutrition with COFOLI AMINO and COFOLI MAX36

Since rambutan trees carry a heavy fruit load, nutrient competition can cause uneven fruit size. In addition to soil fertilization, foliar fertilizer is essential for uniform fruit development.

BACONCO recommends using COFOLI AMINO + COFOLI MAX36 to provide essential macro, secondary, and micro-nutrients, as well as Amino Acids, helping fruits grow uniformly, plump, and reducing fruit drop.

Usage: Mix 250ml COFOLI AMINO + 250ml COFOLI MAX36 in 200 liters of water and spray on the trees.

Healthy rambutan growth for uniform, plump fruit and higher yield

Results after using NPK CONCO, MICROTHIOL, and COFOLI AMINO + COFOLI MAX36

Using NPK CONCO 16.16.16+5S+0.1Zn+0.05B and NPK CONCO 17.17.17+4S+0.1Zn+0.03B combined with MICROTHIOL and COFOLI AMINO + COFOLI MAX36 delivers remarkable benefits:

  • Full supply of macro, secondary, and micro-nutrients: Ensures strong, even fruit growth.
  • Additional essential Amino Acids: Promotes plump, high-quality fruit.
  • Reduced rambutan fruit cracking from weather: MICROTHIOL helps trees withstand harsh conditions, limiting cracking and reduce fruit drop.

With this combination, rambutan trees will thrive during the fruiting stage, producing uniform, high-quality fruit and achieving higher yields.

After using the product set, rambutan trees will grow strong and achieve high yields

Conclusion

Rambutan fruit development and powdery mildew prevention are not difficult when proper care methods are applied. Using balanced fertilizers like NPK CONCO 16.16.16+5S+0.1Zn+0.05B and NPK CONCO 17.17.17+4S+0.1Zn+0.03B, combined with MICROTHIOL for disease protection and COFOLI AMINO + COFOLI MAX36 for supplemental nutrition, will help rambutan trees grow vigorously, produce beautiful fruit, optimize yield, and maintain high economic value.

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