Effect of Insect Growth Regulators (IGR) Against Sciarid Fly, <i>Bradysia Tritici</i> (Conquillet) Infesting Milky Mushroom (<i>Calocybe Indica</i> P&C)

The present investigation was conducted during May 2023 at the Mushroom Production Unit, College of Agriculture, Navsari Agriculture University, Waghai, Gujarat. Infestation of the sciarid fly Bradysia tritici (Conquillett) was observed from the spawning time to harvest of mushroom. Application of two insect growth regulators viz. nuvaluron 10 EC and lufenuron 2.5 EC in compost, casing, compost plus casing at 0.005 and 0.0075% were evaluated against B. tritici. Novaluron at 0.0075% in paddy straw plus casing recorded maximum reduction in larvae (89.37%), lowest infestation (5.78%) and highest yield (1330g) over untreated control.