telenomus beneficiens is a common egg parasitoid of sugarcane top borer scirpophaga excerptalis; however, in winter time the incidence of the parasitoid on top borer eggs is extremely low. t. beneficiens adults were released at various time durations into sugarcane plots to evaluate the parasitic potentiality of the parasitoid against sugarcane top-borer. the egg parasitoid t. beneficiens of su...

Groundwater and soil potassium deficiencies are present in northern India. Sugarcane is a vital crop the Indian Punjab; it grown on approximately 91,000 hectares with an average yield of 80 tonnes ha?1 sugar recovery rate 9.59%. The role (K) fertilizer under both sufficient deficient irrigation ratoon sugarcane crops not well documented. We conducted split-plot cane experiment during 2020–2021 ...

The current study was carried out at the experimental farm of Rana Sugars Ltd., Buttar Seviyan, Amritsar, Punjab, India, to identify methods improve yield and quality ratoon sugarcane in potassium-deficient soils. treatments comprised two levels irrigation, resulting plants which either received sufficient water (I1) or were water-stressed (I2), four rates potassium (K) application: 0 (K1), 40 ...

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 simula...

Progress on the research and development of insect-resistant transgenic rice, especially expressing insecticidal proteins from Bacillus thuringiensis (Bt), in China has been rapid in recent years. A number of insect-resistant transgenic rice lines/varieties have passed restricted and enlarged field testing, and several have been approved for productive testing since 2002 in China, although none...

Paddystem borer (Scirpophaga incertulas) is a serious rice pest. The damaged plants wither into dead tassel or white tassel. Such damage leads to decreased in rice production. In order to control the damages of paddystem borer efficiency, it is very important to analyze and study the regulation of population dynamics and the related factors affecting the development. This investigated the popul...