Yongan

Dimocarpus longan
Growth Characteristics of Longan (Dimocarpus longan)

Longan is an evergreen fruit tree that thrives in tropical and subtropical climates. It is a plant that primarily requires high temperatures and humidity, achieving optimal growth conditions at temperatures above 15 degrees Celsius. The tree grows to a height of approximately 10 to 20 meters, and its leaves are thick, glossy green. The flowers are small and yellowish-green; after flowering, brown-shelled fruits with a diameter of about 2 to 3 centimeters are produced.

Propagation Methods

Longan is primarily propagated by seeds, cuttings, or grafting. Propagation by seeds is time-consuming and may result in changes to the variety's characteristics. Cuttings and grafting are faster and more stable methods of propagation, allowing the desired characteristics of the variety to be preserved.

Cultivation Methods
 - Soil: Well-drained and fertile soil is preferred. A pH between 5.5 and 6.5 is appropriate.
 - Watering: Maintaining consistent humidity is important. Fruit quality may deteriorate if water is scarce.
 - Fertilizer: During the growing season, use a compound fertilizer containing nitrogen, phosphorus, and potassium (NPK), but avoid excessive fertilization.
 - Pruning: Regular pruning is necessary for healthy tree growth. It is important to remove diseased or dead branches.

Uses in the Garden
Longan is primarily cultivated as a fruit tree for harvesting, but it can also be used as a garden tree due to its beautiful foliage and tree appearance. It is particularly suitable as a summer shelter as it provides significant shade.

Important Pests and Control Methods - Diseases:
- Spotted Leaf: A disease that causes brown spots on the tree's leaves; it can be controlled using Bordeaux mixture.
- Root Rot: Occurs due to poor drainage; use appropriate fungicides along with soil improvement. 2. Pests:
- Aphids and Scale Insects: These pests damage leaves and branches and are primarily controlled using insecticides. Eco-friendly control using natural enemies is also possible.
- Fruit Flies: These pests damage the fruit and can be controlled using pheromone traps.

You can grow longan healthily through proper cultivation management, and it is important to prevent pests and diseases by applying appropriate control methods.
Plant Family	Sapindaceae
Height	10m
Colors	white
Bloom Period	april
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-2°C
grass barnyard grass
Dimeria ornithopoda
Dimorphodeca Sinuata
Dimorphotheca sinuata