Rice yellow dwarf disease
Causative agent: Rice yellow dwarf virus.
- Caused by a phytoplasma
- Transmitted by leafhopper vectors Nephotettix sp.
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
- 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.