Navsari Agricultural University


Nature of Damage:
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The newly hatched larva enters the leaf sheath and feeds for two to three days and bores into stem near the nodal region.
The larva feeds inside the stem causing drying of the central shoot or `dead heart` in young plant and drying of the panicle or `white ear` in older plant.

Management:
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Stubble should be destroyed immediately after harvesting to kill the hibernating larva of rice yellow stem borer.
Selection of resistant variety, Narmada, GR - 101, IR - 22, IR - 66, Gurjari, C.R. 138-928.
Early sowing i.e. third week of Jun to first week of July.
Nursery management: Apply carbofuran 3% G OR cartap hydrochloride 4% G @ 1 kg. Twice, five days after sowing and five days before uprooting the plant.
Dipping the seedlings in the solution of chlorpyriphos 0.1 % for 30 minutes.
Clipping the tip of seedling before transplantation helps in the elimination of egg masses.
Install the light traps or pheromone traps (Scirpo lure) for monitoring the population of RYSB.
Collection and destruction of egg masses or keep the egg masses in wire cage box for conservation of egg parasitoids.
Collection and destruction of dead hearts or white ears along with larvae to minimize the incidence.
Granular application of carbosulphan 5 % G - 15 kg OR cartap hydrochloride 4 % G - 20 kg OR carbofuran 3 % G 25 kg/ha, First - 30 to 35 DATP and second - 15 to 20 days after first application.
Monocrotophos 36 % WSC 0.04% - 10 ml or Fenitrothion 50 % EC 0.05% - 10 ml or Triazophos 40 % EC - 10 ml or Cartap hydrochloride 50 % SP 0.05% - 10 gm.

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