Managing tomato leaf curl virus

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Source:

https://www.accessagriculture.org/managing-tomato-leaf-curl-virus

Duration: 

00:13:23

Year of Production: 

2018

Source/Author: 

MSSRF
»Tomato leaf curl cannot be cured by any product. The disease is spread by whiteflies. The best way to control the disease is through prevention. A net house can protect your nursery. A border of cereals around your vegetable field helps keep whiteflies out. Farmers in southern India show us yellow sticky traps, natural pesticides and various other methods.«

Tomato leaf curl virus is a major disease which causes significant loss and needs to be managed. If well managed, vegetables are more profitable.

Tomato leaf curl virus is caused by a virus, spread by white flies, when sucking plant juices and affects tomatoes, eggplants, cauliflower, potatoes and tobacco. New leaves are small, wrinkled and curl upwards. The flowers abortion before fruiting and affected plants appear stunted.

Control of white flies

Since the disease is spread by white flies, controlling them translates into controlling of the spread of the disease. White flies are difficult to control with insecticides.

Protect seedlings from white flies by making the nursery in a net house. Use trap crops like maize, millet and sorghum. Repel them using aromatic crops like coriander, tumeric and mint. Use natural enemies like lady birds. Marigold or sun flower also attracts them.

Use yellow trap cards, if not readily available, make them yourself. Spray using home made pesticide using ginger, garlic and chilli in the morning or evening. At early stage of crop development, spray using neem oil to prevent white fly attack.

Disease management

Plant resistant varieties. Extract seed from healthy plants.

Apply farm yard manure. Uproot and burn infected plants.

 

Sequence from Sequence to Description
00:0000:53Tomato leaf curl virus disease is a major disease of vegetables and affects tomatoes, egg plants, cauliflower, potatoes and tobacco.
00:5401:20Case study is egg plants, but management cuts across. Affects crops during all seasons, caused by a virus and can not be killed by any protector.
01:2101:47Leaves of affected plants appear small, wrinkled ,with prominent veins and curl upwards like a cup. Flowers abort and diseased plants become stunted.
01:4802:18The disease is spread by white flies very fast and can destroy the entire field.
02:1902:28White flies are tiny white insects that attack fruits, vegetables and ornamentals.
02:2902:44Suck plant juices hence transmit disease and are difficult to control using insecticides.
02:4504:08Management: Use resistant varieties.
04:0904:21Extract seed from healthy plants.
04:2204:33Apply farm yard manure to the base of the plant for healthy soil.
04:3405:12Protect seedlings from whiteflies by making the nursery in a net house.
05:1306:11Use trap crops like maize, millet and sorghum.
06:1206:24Repel away white flies using aromatic plants.
06:2506:43Control white flies using natural enemies.
06:4406:50Plant crops that attract natural enemies of white flies around the field.
06:5107:16Detect white fly presence using yellow sticky traps.
07:1708:40If readily made traps are not available, make your own and evenly distribute 12 per hectare.
08:4109:10You can also use a mosquito racket.
09:1109:46Use home made pesticide: Garlic, Ginger and chillies.
09:4710:06Spray in the morning or evening and wear protective gear.
10:0710:18At early crop stage of crop growth, prevent white fly attack using neem oil.
10:1910:38Some fungi is used to kill white flies.
10:3911:12After white fly control, boost crop growth.
11:1311:35Uproot and burn infected crops.
11:3613:23Summary.

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