Expert Advisory Details

Identification and control of stem borer in paddy crop

Rice Stem Borers: The larvae bore into the stems of young plants and result in dead hearts. The fields showing more than 5 per cent dead hearts (ETL) should be sprayed with 20 ml Fame 480 SC (Flubendiamide) or 50g Takumi 20WG (Flubendiamide) or 60 ml Coragen 18.5 SC (chlorantraniliprole) or 170 g Mortar 75 SG (Cartap hydrochloride) or one litre of Coroban/ Dursban/ Lethal/ Chlorguard/ Durmet/ Classic/ Force 20 EC (chlorpyriphos) or 80 ml neem based bio-pesticide, Ecotin (Azadirachtin 5%) in 100 litres of water per acre. These insecticides may be repeated as and when damage reaches economic threshold level. Prefer Ecotin at pest initiation stage. In basmati rice, when there are more than 2% dead hearts, apply Fame 480 SC @ 20 ml or Takumi 20WG @ 50g or Coragen 18.5 SC (chlorantraniliprole) @ 60 ml or Mortar 75 SG @ 170g or one litre of Coroban/Dursban/ Lethal/ Chlorguard/ Durmet/ Classic/ Force 20 EC or Ecotin @ 80ml/acre or Achook/Neem Kavach @ 1 litre in 100 litre of water per acre. In addition to these insecticides, Ferterra 0.4 GR (chlorantraniliprole) @ 4 kg or Padan/ Caldan/ Kritap/ Sanvex/ Nidan/ Marktap/ Miftap/ Katsu 4G (cartap hydrochloride) @ 10 kg/acre or Vibrant 4 GR (thiocyclam hydrogen oxalate) @ 4 kg or Regent/ Mortel/Mipro-G/ Mahaveer GR/ Shinzen 0.3 G (fipronil) @ 6 kg or Dursban 10 G (chlorpyriphos) @ 4 kg per acre can also be used in standing water in basmati rice. These insecticides also control leaf folder in addition to stem borers.