OKRA (Abelmoscus esculentus)
Okra is also a vegetable crop commonly grown by local farmers in West Africa. The fruits called capsule. When young, they are harvested with knife and used in soup preparation.
Land preparation: The bush is cleared with cutlass while ridges or heaps are constructed with hoes. Alternatively, the land can be prepared by ploughing, harrowing and ridging.
Varieties/Cultivars: New lady’s finger and the Perkin’s long pod.
Climatic and soil requirements: Okra requires a temperature of 18°C – 30°C, rainfall of 100cm – 150cm per annum and a well-drained loamy soil.
Method of propagation: By seeds.
Planting date: Early April and May.
Spacing: 60cm x 60cm.
Planting: Seeds are planted directly into beds, two to three seeds per hole which should be 3cm deep. Germination occurs as from the 5th day after planting.
Cultural Practices
- Thinning and supplying: These can be done where necessary.
- Fertilizer application: Super phosphate fertilizer at 100kg/hectare is required. Ring application is used.
- Weeding: This should be done regularly.
Maturity period: This occurs between three and seven months depending on varieties.
Harvesting: The young and succulent green immature fruits are plucked or harvested with knife. Harvesting is done over a long period of time.
Processing: The fruits are used as food.
Storage: The fresh fruits are stored in a cool place, e.g, refrigerator or the dried ones are stored in sacks.
Pests of Okra
1) Flea beetles: These insects attack the plants and eat up the leaves. This they do by putting holes on the leaves as they eat them.
Control
- Spray with insecticides.
2) Cricket and grasshopper: These insects also defoliate the plant by eating up the leaves and young stems.
Control
- Spray with insecticides.
Diseases of Okra
1) Root knot disease: It is caused by eelworm nematode which is found in the soil.
Symptoms: Symptoms include knotting or galling of roots, retarded growth and reduced yield.
Control
- Practise crop rotation.
- Use resistant varieties.
- Treat soil with nematicide, e.g Nemagon.
2) Mosaic disease: It is caused by a virus which is transmitted by piercing and sucking insects. Symptoms include mosaic colouration on the leaves, leading to low yield of the crop.
Control
- Spray with insecticide to kill vector.
- Uproot and burn infected plants.