Tomato Spotted Wilt: Tomato spotted wilt disease (TSWV), Groundnut bud necrosis virus
Symptom:
-
It causes streaking of the leaves, stems and fruits. Numerous small, dark, circular spots appear on younger leaves.
-
Leaves may have a bronzed appearance and later turn dark brown and wither.
-
Fruits show numerous spots about one-half inch in diameter with concentric, circular markings. On ripe fruit, these markings are alternate bands of red and yellow.
-
The spotted wilt virus is transmitted through thrips (Thrips tabaci, Frankliniella schultzi and F. occidentalis).
Management:
-
The affected plants should be removed and destroyed.
-
Alternate or collateral hosts harboring the virus have to be removed.
-
Raise barrier crops – Sorghum, Maize, Bajra 5-6 rows around the field before planting the tomato.
-
Spray Imidachloprid 0.05% or any systemic insecticide to control the vector.
Source-
- TamilNadu Agritech Portal
