Cultural

• 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.

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

Chemical

• 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.