The yield loss simulation (YLS) and the MACROS LIQ.CSM models were used to simulate the effect of stem borer damage at a detillering rate of 5, 15, 30, 60% at vegetative, panicle initiation and grain filing stages, on yield of rice cultivar?s Ratna. This stem borer damage during vegetative and panicle initiation stages was not simulated appropriately by both the models. Relatively MACROS simul...

The rice-wheat cropping system (RWCS) in the Indo-Gangetic plains (IGP) of South Asia with help Green Revolution early 1970’s greatly contributed to India's food self-sufficiency and livelihood millions peoplethus, became country's primary source food-grain production. However, deterioration soil health quality, ground water depletion, stress, labour shortage, introduction new weeds pests parti...

The Yellow Stem Borer (YSB), Scirpophaga incertulas Walker, (Lepidoptera: Crambidae) is a devastating pest that significantly affects the yield of spring rice crops. Insecticides have been primary method used to control YSB, but comparative efficacy studies different insecticides against YSB in Nepalese production systems are limited. This study aimed investigate seven insecticide treatments on...