Philosamia ricini, the Indian eri silkworm, contributes significantly to the production of commercial silk and is widely distributed in the Brahmaputra valley of the North-Eastern India. Strains of P. ricini show wide variation in their phenotypic traits and are commercially exploited in these places because of their high silk yield potential. In this study, we have analyzed the partial mitocho...

Cuticular lipid compositions of all life stages of the stored product moth Plodia interpunctella have been determined. Eggs and adults of P. interpunctella have cuticular lipids consisting solely of hydrocarbons. The composition of eggs and adult females is qualitatively nearly identical with ca. 86 hydrocarbons (11 n-alkanes, 39 monomethyl alkanes, 19 dimethyl alkanes, 11 trimethyl alkanes and...

Bombyx mori nucleopolyhedrovirus (BmNPV) that infects the silkworm, B. mori, accounts for >50% of silk cocoon crop losses globally. We speculated that simultaneous targeting of several BmNPV essential genes in transgenic silkworm would elicit a stable defense against the virus. We introduced into the silkworm germline the vectors carrying short sequences of four essential BmNPV genes in tandem,...

A simple solid-state NMR method was used to study the structure of (13)C- and (15)N-enriched silk from two Australian orb-web spider species, Nephila edulis and Argiope keyserlingi. Carbon-13 and (15)N spectra from alanine- or glycine-labeled oriented dragline silks were acquired with the fiber axis aligned parallel or perpendicular to the magnetic field. The fraction of oriented component was ...

The nutritional status of food plants and altitudes play pivotal role in successful rearing of Indian tropical tasar silk worm Antheraea mylitta Drury both in commercial and seed crops. The pupa is the most crucial stage of its life cycle for the adult life and race continuation as well as for exploiting its genetic potency and dynamics to our best advantages. In the present investigation an ex...

During the raw silk degumming process, water-soluble natural protein sericin is discarded as waste material in sericulture industry of Bangladesh. In this study, various amount (as nutritional supplement) treated mulberry leaves was fed to three different silkworm groups and its effect on cocoon, pupal parameters well grainase properties silkworms evaluated. The results indicated that fecundity...

Nutrition is the important physiological process, which plays a prime role in the growth and in turn it affects the productivity of the silkworm. The supplementation of different materials along with mulberry leaves to silkworm results higher yield because the production of quality silk mainly depends on larval nutrition. The influence of antibiotic on growth and development of silkworm larva a...

0003-3472/$38.00 The Association for the Study of A doi:10.1016/j.anbehav.2009.10.033 The larva of the ichneumonid wasp Polysphincta gutfreundi induces its host, the orb-weaving spider Allocyclosa bifurca, to build a highly modified, physically stable orb web, to which the larva then attaches its pupal cocoon, and to add an otherwise unusual linear silk stabilimentum to this web that may camouf...

Bombyx mori L. (Lepidoptera: Bombycidae) is a well-studied Lepidopteran model system because of its morphology, life cycle, and economic importance. Many scientists have placed importance on enhancing the economic traits of B. mori because it's larvae, silkworms, are vital in the production of silk. In this study, the effect of bovine milk on B. mori growth was tested. Bovine milk contains seve...

Earhead worm Autoba silicula (Swinhoe, 1897) (Lepidoptera: Erebidae) is recorded for the first time in India on maize. Larvae were found feeding maturing grains and silk, fully fed matured larvae pupates under a dome shaped or elongated galleries made of silk inside cob. Roving survey conducted during 2019 2020 an average 0.40 0.45 per plant, respectively, which below economic threshold. In pre...