YELLOW AND WHITE RICE STEMBORERS
White stemborer Scirpophaga innotata
Yellow stemborer Scirpophaga incertulas
Damages :
Deadheart
Whitehead
   
Management Strategies at Various Crop Growth Stages:
Crop Establishment
Vegetative (Tillering)
Reproductive (Early panicle initiation to flowering)
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Use insecticide when needed.
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Do not apply insecticide when the population of parasitoids is greater than the larvae (based on egg mass collected from the field and reared in covered bottles).  At this stage, egg mass population is usually low (less than one egg/sqm2)
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Apply systematic insecticide when 1-2 egg masses are observed in every square meter in the field.
Ripening
Harvest and Post Harvest
   
Stemborer information sheet
  Stemborer population in Maligaya, Science City of Muñoz