Mrig, K.K.Parveen Kumar2016-11-302016-11-302005http://krishikosh.egranth.ac.in/handle/1/88291The present investigation was undertaken for screening of white button mushroom, Agaricus bisporus (Lange) Singer strains, evaluating botanicals for management of mushroom flies and studying the population dynamics of flies. The material for screening comprised of five strains of A. bisporus, eight medicinal plant extract, two insecticide and a light trap with a yellow polythene and 15 watt yellow bulb. These experiments were carried out at Department of Plant Pathology and Department of Entomology, CCS Haryana Agricultural University, Hisar during 2004-05 season and CRD design with three replication was followed for layout. There was no infestation of phoridfly whereas maximum (16.67%) and minimum (7.25%) infestation of sciaridfly was in S-791 and P-31, respectively, in the early crop. Infestation of phorid fly was maximum (40.51%) in S-791 and lowest (30.95%) in S-100 whereas sciarid infestation was maximum (22.49%) in S-791 and minimum (10.98%) in P-31, in late crop. All the strains showed moderate feeding by sciarid fly larvae except S-791 which had highly feeding while all the strains showed highly feeding by phorid fly. Number of sciarid larvae per infested fruiting body were maximum (5.2) in S-791 and minimum (2.9) in P-31 during early crop while in the late crop, maximum (7.1) were in S-791 and minimum (4.1) in HU-3. Phorid larvae were maximum (22.7) in S-791 and minimum (12.7) in S-100 in the late crop. Sciarid larvae in spawn-run compost cup were maximum (16.2) in S-791 and minimum (10.0) in S-11 whereas maximum (26.5) number of phorid larvae were in S-791 and lowest (18.7) were in S-100. Spawn run time was longer in all the botanical treatments over control. Maximum spaw-run inhibition (3.00 day) was noticed in Ashvagandha treatment while minimum inhibition (0.33 day) was in Sarpgandha treatment. It was shorter by 0.33 day in endosulfan 35 EC treatment. All the botanicals treatments decrease the per cent infestation of mushroom flies significantly over the control but no botanical was at par with checks (Endosulfan 35 EC and Nimbecidine 300 ppm). Minimum infestation (21.56%) was observed in neem treatment whereas maximum (43.80%) was in Gurmar treatment. No botanical treatment gave the high yield over checks. Yield was maximum (10.20 kg/q compost) in Turmeric treatment and minimum (8.66 kg/q compost) in Gurmar and Senna treatments. Avoidable losses was highest (14.4%) in Turmeric and there was no avoidable loss in Gurmar and Senna. Phorid fly population shows positive correlation r= 0.553 with temperature while sciarid fly had no correlation with temperature having r= 0.036.enThesis