| Tomato spotted wilt disease : Groundnut bud necrosis virus / Tomato spotted wilt virus (TMV)
Symptom
-
Severe stunting .
- Chlorotic or necrotic ringson leaves.
- Thickening of veins and bronzing of young leaves.
- Growing tips die-back and wilt.
- Yellow areas with concentric circular markings in fruit.
- Discoloration of seed.
|
|
|
Affected leaves |
Infected Plant |
Concentric rings on fruits |
Causal organism:
Groundnut bud necrosis virus / Tomato spotted wilt virus
Vector :
Thrips –Frankliniella schultzii, Scirtothrips dorsali
Survival and Mode of Spread
Primary spread:
Infected plants
Secondary spread:
Thrips, Frankliniella schultzii, Scirtothrips dorsalis
Integrated Disease Management
Cultural
Use of healthy seedlings for transplanting
Rouging of infected plants upto 45 days of planting .
Growing sorghum, maize or bajra as barrier crop.
Chemical
Apply any one of the following insecticide
- Cyantraniliprole 10.26 OD @ 900 ml/ha
- Thiamethoxam 70 WS @ 300 ml / ha
- Imidachloprid 17.8 SL @ 250 ml / ha.
Source of Information
- https:www.apsnet.org.
- Crop production guide – Horticulture 2020
Acknowledgement
- Photo courtesy by Dr.P.Renukadevi, Professor, Department of Plant Pathology, TNAU, Coimbatore.
|
