Five layers, i.e. floss, upper, middle, lower and pelade, exist in cocoon shell from outer to inner portion. An attempt has been made for assessment of microstructural characteristics eri silk fiber different layers cocoons. Wide angle x- ray diffraction revealed increase crystallinity as well degree orientation decrease crystal size besides lattice spacing remains at par floss pelade layers. S...

We have used the vectorised and parallelised magnetohydrodynamics code NIRVANA on the NEC SX-5 and the new SX-6 installation in parallel mode to simulate the interaction of jets with a galactic wind that might be typical for the star-bursting radio-galaxies of the early universe. The two simulations, one axisymmetric and one in 3D show that the jet pierces and destroys a thin and dense shell pr...

Reproductive efficiency of economic insects and its rearing performances are greatly affected by hormonal activities together with the environmental and cultural practices. Two different hormones were selected for tropical application on muga silkworm (Antheraea assamensis Helfer) to study their effect on the overall rearing performances. JH-III (Juvenile hormone) in three different concentrati...

The dietary nutritional management influences the rearing and commercial parameters of the silkworm. When silkworms were fed with mulberry leaves fortified with aqueous leaf extract of O. sanctum in the second instar, a positive response with respect to larval and commercial parameters were noticed. Highest larval weight in three instar viz third (1.341g/10 worms),fourth(5.434g/10),while in the...

Aim: The experiment was aimed at evaluating the effect of mulberry irrigated with treated sewage water on silkworms and cocoon production.
 Study Design: laid out in a Randomized Complete Block Design (RCBD) six treatments four replications.
 Place Duration Study: study conducted during Rabi 2019 pre-established V-1 garden Department Sericulture, University Agricultural Sciences, Gand...

Monodontomerus aeneus (Fonscolombe) is a parasitic wasp that oviposits on the prepupae and pupae of Osmia cornuta (Latreille) and other solitary bee species. A two-armed olfactometer was used to test the olfactory attractiveness of O. cornuta prepupae, cocoon, and larval frass to female M. aeneus. Both cocoon and frass attracted the female parasitoids, but frass alone was more attractive than t...

The effect of fungicides on silkworm larvae was analyzed with regard to the fact that these beneficial insects are usually affected by fungicides, Daily feeding on 1 and 2g/liter of carbendazim, a systemic fungicide, did not have significant effects on larval and pupal mortality. However the weight of the treated larvae showed considerable weight decrease up to 37% weight.. All the economic tra...

The experiment was carried out during 2019-20 at P-2 Pure Mysore Multivoltine Basic Seed Farm (BSF), National Silkworm Organisation, Nagenahalli, Karnataka to know the effect of nutrient management on growth and yield G4 mulberry variety its subsequent bioassay multivoltine silkworm, Mysore. garden (three years old) with planted in paired row system used for seven treatments three replications....

The influence of methoprene on the changes in trehalose,glycogen content and economic characters of silkworm were studied in CSR2 x CSR4 (Bivoltine x Bivoltine), and PM x CSR2 (Multivoltine x Bivoltine) hybrids. Application of methoprene caused significant (P< 0.05) increase in trehalose and glycogen contents, both in haemolymph and fat body tissues. The increase in trehalose was about 48% and ...