| Name of the diesease | Symptoms | Control Measures |
| POWDERY MILDEW | White powdery growth on both sides of the leaf. Diseased leaves drop off.
| Spray Sulfex (0.2% ) or Karathane (0.05%) at 10 days interval.
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| LEAF SPOT | Leaf spots with gray centres and red borders. When the disease is severe, it produces complete defoliation.
| 1. Spray Dithane M-45 (0.2% ) or Captan (0.2%) or Bavistin (0.2%) or Captan (0.2%) or Bavistin (0.1%) or Difolatan (0.2%) at 10 days interval.
2. Treat the seed with organomercurials (0.2%).
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| YELLOW VEIN MOSAIC VIRUS
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The disease is characterised by a homogenous interwoven net work of yellow veins enclosing islands of green tissue within. In extreme cases, the infected leaves become totally yellow or cream colour. Infected plants remain stunted and bear very few deformed and small fruits. The disease causes heavy loss in yield if the plants get infected within 20 days after germination. | 1. The vector population and disease incidence can be reduced by application of 4 to 5 foliar sprays of either Dimethoate (0.05%) or Metasystox (0.02% ) or Monocrotophos (0.05%) , followed by 1 or 2 sprays of mineral oil (2%).
2. One soil application of Furadon @ 1.5 kg a.i./ha at the time of sowing seeds is also recommended.
3. Infected plants must be removed from the field
4. Some okra lines have been evolved at IIHR ,Bangalore, which arecompletelyresistant to yellow vein mosaic of okra.
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| ENATION LEAF CURL OF OKRA | The important symptoms of this disease are curling of leaves in an adexial direction, and mild or bold enations on the under surface of the leaves become thick and deformed. The most characteristic symptom of this disease is twisting of the main stem and lateral branches. Twisting of petiole is also a prominent symptom. The infected leaves become thick and leathary. The plant growth is retarded . fruits from infected plants are small and deformed and unfit for marketing.
| Same as given for yellow vein mosaic of okra.
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