Cempedak

1. Local Name: Cempedak (Artocarpus champeden )

2. Recommended varieties:

Clone	Characteristic
Ch 27	Large (2.6 kg), elongated greenish-yellow fruit with sweet, thick, yellow pulp.
Ch 28	Medium sized fruit (1.8 kg). Yellowish fruit with orangy yellow, very sweet pulp and small seeds.
Sri Gading	Average size fruit (2 kg) with green skin color and orange flesh that tastes very sweet.

3. Soil Requirement:

Tolerates a wide range of soil but does best on deep, well drained soil.

4. Spacing: 9m x 9m (123 trees/ha)

5. Fertiliser application:

Year	Time of application	Type of fertiliser	Amount / Stand / Year (kg)	Rate/ Application (kg)
0	At Planting	Rock Phosphate Dolomite Organic manure	0.20 0.10 5.00 - 10.00	0.20 0.10 5.00 - 10.00
1	Every 3 months	15:15:15	0.50	0.13
2	Every 3 months	15:15:15	1.00	0.25
3	Every 4 months	15:15:15	1.50	0.50
4	Every 4 months	12:12:17:2+TE	2.00	0.67
5	Every 6 months	12:12:17:2+TE	3.00	1.00
6	Every 6 months	12:12:17:2+TE	4.00	1.33
7	Every 6 months	12:12:17:2+TE	5.00	1.67
8 onwards	Every 6 months	12:12:17:2+TE	6.00	2.00

Pruning : Little pruning is required to achieve a central leader with a single trunk and well spaced branches.

6. Vegetative period: 3 - 5 years .

7. Economic Life: 10 - 30 years.

8. Yield:

5 - 40 t/ha/yr with peaks after 6 - 8 years.

9. Pests And Diseases of Cempedak:

Pest/Disease	Symtom	Control
Pests: 1. Fruit borer	Larva bores and feeds in the fruits and seeds causing it to rot. Frass seen on the outside.	1. Bagging of fruits. 2. Collect and destro affected fruits. 3. No registered chemical for control.
2. Jackfruit Wilt / Dieback - caused by the bacterium, Erwina carotovora .	Dieback of branches occurs. This is usually the first obvious symptom that is observed. White latex can be seen oozing out of the dark stains on the branches.When the infected bark is removed, a brown patch can be observed underneath. When a branch is infected the leaves turn yellow to brown, wilt and drop. As the disease spreads between branches, the whole tree eventually wilts and dies. Fruits from infected trees are smaller and they ripen prematurely.	Since this is a bacterial disease, there is no chemical cure. Plant tolerant cultivars, if available. Observe good management practices, by sterilising pruning implements after each pruning. Look out for any insects that maybe helping to spread the disease.
Diseases: 1. Pink Disease -caused by fungus, Erythricium salmonicolor. - serious in high-density planted areas or under shade during high rainfall.	Silky-white mycelial threads on the bark of branches and trunk. Under wet conditions, they turn slightly pink in colour and rough pink encrustations are formed. The bark later cracks and the branches dry up and wilt.	Avoid close planting or intense shading. Prune off infected parts of the plant, and practice good field hygiene by removing all plant debris. Monitor the disease in the field closely for recurrence of the disease. At the moment, there is no fungicide registered with the Malaysian Pesticide Board for jackfruit.