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 formation mechanism of the W50/SS433 complex has long been a mystery. We propose new scenario in which SS433 jets themselves form system. carry out magnetohydrodynamics simulations two-side jet propagation using public code CANS+. As found previous studies, when propagating is lighter than surrounding medium, shocked plasma flows back from tip to core. find that morphology light spheroidal ...

Abstract During the feeding of mulberry silkworms, when temperature in larvae fluctuates sharply and amount nutrients fed is below or above norm, metabolism physiological processes body are disrupted. As a result, silk cocoon water balance, respiration, digestion absorption impaired, activity glands creating conditions for disease-causing microorganisms. In this case, growth silkworms by 4 time...

In order to improve the technology of cocoon processing, create waste-free technologies, a surface activator was synthesized on basis bardo residue fraction and lubricating oils formed during production ethyl alcohol. Based IR-spectral analysis, presence hydroxyl carboxyl groups in surfactants determined be suitable raw material for surfactants, substance from it can used staining. IR-spectrum ...

Antherina suraka Boisduval (Saturniidae, Lepidoptera) produces a silken cocoon that has been the focus of efforts to create a commercial wild silk industry in Madagascar. In this study, structural and mechanical properties of the cocoon of A. suraka from two sites were measured and compared to the cocoon of Bombyx mori L. (Bombycidae, Lepidoptera) the world's most common source for silk. Result...

Improvement of high yielding, disease resistant silkworm strains became imminent to increase production of silk, which is a major revenue earner for sericulturists. Since environment interacts with phenotype, conventional breeding did not result in commendable yield improvement in synthetic strains of silkworm, Bombyx mori. Identification of DNA markers associated with different economically im...

Mulberry silkworm, Bombyx mori L, most valued for silk and other medicinal products is prone to various biotic stresses among which the disease caused by Nuclear Polyhedrosis Virus (BmNPV) is most serious as it occurs throughout the year causing losses to the tune of 30-40 per cent. Studies conducted on eco friendly management of the disease using botanicals revealed that 800 ppm hexane leaf ex...

The objective of the present study was to estimate the level of inbreeding coefficient during inbreeding of the pedigree of random mating and selected populations of two distinct races of mulberry silkworm, Bombyx mori (Lepidoptera: Bombycidae), in the silkworm germplasm. The six generation data of the two races, namely multivoltine Pure Mysore and bivoltine NB4D2, were studied for inbreeding d...