Studies on the Effect of Wet Castor Leaf Feeding and Feeding Frequencies on Economic Traits of Eri-silkworm, Samia cynthia ricini Boisduval (Saturnidae: Lepidoptera)
Journal Title: STAR Journal - Year 2015, Vol 4, Issue 1
Abstract
The study was carried out at Melkassa Agricultural Research Center in the sericulture and apiculture research laboratory during 2012 and 2013 G.C. cropping seasons. Both tender and matured castor leafs were obtained from Melkassa Agricultural Research Center, sericulture research field to investigate the effects on castor feeding silkworms. During young age (1st and 2nd instars) rearing the tender leaf and late age (3rd, 4th and 5th instars) rearing matured castor leaf were dipped in the water and excess water was drained out by shaking and fed to the silkworms as per the treatments. The young age (1st and 2nd instars) silkworms were fed with daily once (8 am), twice (8 am and 8 pm) and thrice (8 am, 2 pm and 9 pm).While late age (3rd, 4th and 5th instars) silkworms were fed with daily twice (8 am & 8pm), thrice (8am, 2pm and 8 pm) and four times (8am, 12 noon 4 pm and 9 pm). The control batch silkworms were reared as per the standard rearing practices. The experiment was laid out in a randomized block design in three replications with a disease free laying per replication. Rearing of castor feeding silkworm by giving tender wet leaf daily twice at young age (1st and 2nd instars)) and matured wet castor plant leaf daily thrice for late age (3rd, 4th and 5th instars) silkworm significantly reduced the larval duration and diseases incidences and improved all the larval, cocoon and silk traits as compared to other feeding frequencies. While, the recommended normal three times/day castor leaf feeding at young age (1st and 2nd instars) and normal three times/day castor leaf feeding at late age was inferior in larval, cocoon and silk traits.
Authors and Affiliations
Ahmed Ibrahim
Evaluation of Nematicidal Action of Some Bio-agents and Botanicals for Eco-friendly Management of Root-Knot Nematodes, Meloidogyne incognita on Tomato
No Abstract
Desertification, Land Grabbing and Food Sovereignty: The Unexplored Link
Food sovereignty is the right of peoples to healthy and culturally appropriate food produced through ecologically sound and sustainable methods, and their right to define their own food and agriculture systems and practi...
Utilization of Biodynamic Farming to Improve Quality Attributes of Soybean (Glycine max L. var. Co. Soy)
Organics must form an indispensable component of the manurial schedule for any crop. The present study was designed to study the effect of biodynamic (BD) compost on biochemical parameters of soya bean plants on 30th, 45...
Antimicrobial, Antioxidant and Cytotoxic Activity of Streptomyces species from Western Ghat Soils of Karnataka, India
No Abstract
Influence of Cowpea and Soybean Intercropping Pattern and Time of Planting on Yield and Gross Monetary Value of Sorghum
No Abstract