Technologies for Silkworm culture

Commercialization of three tasar ecoraces (Daba TV, Daba BV, Sukinda BV)

  • Rearing and grainage technology developed by the Institute has enabled commercial exploitation of the three tasar ecoraces - Daba TV, Daba BV, Sukinda BV.

Model for in-situ conservation of ecoraces

  • The Institute has developed a model for in-situ conservation of wild ecoraces (Laria in Jharkhand, Raily in Chhattisgarh, Bhandara in Maharashtra and Modal in Orissa). The success achieved in Jharkhand on conservation of Sal-based Laria ecorace has opened a new dimension towards biodiversity conservation, multiplication and rational utilization. This is an innovative step in furthering the raw silk production in the country.

Outdoor preservation of cocoons in moderate climate

  • Facilitates synchronized emergence in shorter span with lower disease incidence.

Preservation of cocoons under specifically designed grainage buildings

  • Ensures minimum erratic emergence, avoid preservation losses and higher moth emergence and natural coupling for seed production.

Nylon-net for enhancing coupling efficiency in tasar silkworm

  • Use of Nylon-net enhances coupling efficiency in sar silkworm.



Egg laying using different egg laying devices

    Technologies Technologies
  • The devises developed are useful in egg laying by moths


Mother moth examination

  • Mother moth examination (microscopic) ensures production of disease free seed (DFL)



Egg washing and surface sterilization

  • The improved technology not only ensures removal of outer maconium layer, proper surface disinfection to prevent incidence of virosis during rearing but also reduces the danger of egg damage due to scrubbing effect.



Incubation schedule for better hatching

  • Incubation of eggs at 28-30° C and 70-80% RH in low cost incubators ensures higher hatching percent.

Brushing schedule

  • Brushing schedule developed for bivoltine and trivoltine crops ensures crop success at different locations.

Integrated Package for chawki

  • The integrated package ensures maintenance of exclusive chawki garden; use of specifically designed brushing bag and chawki rearing under nylon net.



Integrated Package late age silkworm rearing

  • The package ensures hygiene maintenance of the rearing site, handling and moulting cares of larvae up to cocooning



Indoor chawki rearing technology

  • Indoor rearing of the chawki worms ( up to 2nd moult) ensures development of healthy worms with higher survival



Semi-synthetic diet (Tasar Amrith) for young age rearing

  • Indoor rearing of the chawki worms ( up to 2nd moult) on semi-synthetic diet ensures higher survival of chawki worms and their healthy growth



Disease control through Sodium hypochlorite

  • It facilitates containment of virosis and bacteriosis during silkworm rearing.

Tasar Keet Oushad

  • Silkworm body disinfectant for management of silkworm diseases

Botanical formulation- Jeevan suraksha

  • The botanical based formulation developed by the Institute, prevents occurrence of major diseases (bacteriosis, virosis and muscardine). Its application results in reduction of different diseases by 60% with improvement in cocoon yield by 11-12 cocoons/dfl.

Botanical formulation- Jeevan Sudha

  • A botanical formulation developed by the Institute reduced the tasar silkworm virosis by 36.54% under outdoor rearing with improvement of cocoon yield by 10-12 cocoons/dfl.

Tasar Rakshak(LSM)

  • The biocontrol formulation has been developed against bacteriosis and virosis. Its application leads to reduction of the diseases by about 45% and improvement in cocoon yield of 12/dfl.

New Drug formulation against Pebrine

  • The chemical based drug formulation prevents the pebrine disease by 50% and improves the cocoon yield by 10-12/dfl.

IPM against Uzifly

  • The IPM developed comprises of mechanical (destruction of uzi affected larvae and installation of sticky tap; chemical (application of 2% bleaching powder solution on silkworm body) and biological (release of Nesolynx thymus, a parasitoid).

BC-IV line of Andhra Local for higher productivity

  • The improved line of the Andhra local ecorace developed through hybridization with Daba shows higher fecundity (230), cocoon yield (26 cocoons/dfl) and filament length (802 m) over the Andhra local ecorace (fecundity: 190, Cocoon yield: 6 cocoons/dfl, filament length : 662 m)

Improved grainage, incubation and chawki rearing technologies for temperate tasar during Autumn crop for NW India

  • Improved grainage, incubation and chawki rearing technologies for temperate tasar during Autumn crop has been developed. Brushing in first week of September (Max temp: 30.8°C, min. temp: 20.8°C and RH : 73.5%) showed less erratic emergence (2.5%) as compared to other lots (15%). Higher emergence (92%), coupling (95%) and fecundity(205) was also recorded