Yellow Dwarf
(Mycoplasma Like Organism)

Symptoms
The infected plants are stunted and have yellowish green to whitish green leaves. There is excessive tillering and leaves became soft and droop slightly. Root growth is also reduced significantly. Chlorosis occurs on the leaves occasionally even spreading to the leaf sheaths. Streaks may also form parallel to the leaf veins. If plants are infected early they usually die before maturity, and even if they do survive no panicles are produced or only a small number with no grains.
	Rice Yellow Dwarf	Yellow dwarf (Mycoplasmal Disease of Rice)
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		Identification of pathogen
		Mode of spread The Mycoplasma Like Organism is transmitted by Nephotettix virescens and N. nigropictus with a latent period of 25-30 days. It survives on several grass weeds.
Aquareovirus Particle of Rice Dwarf Virus	Phytoreovirus Virion
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Management Strategies
Deep ploughing during summer and burning of stubbles. Rice varieties like IR62 and IR64 are resistant to the disease. The management practices followed for Rice Tungro disease may be adopted for this disease also. Avoiding early-planted rice will prevent an increase in vector density and proportion of infected vectors. Planting fallow rice fields with non-vector hosts, ploughing fallow paddy fields, and late-planting, synchronous planting, or avoiding an over-lap of early- and late-planted rice crops.
	IR64	Ploughing
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