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Mulberry Silkworm Farming in Varanasi: Practical Guide

A practical guide for growers in Varanasi to set up and run mulberry silkworm (Bombyx mori) production, from land and varieties to rearing practices, pest and disease management, and selling…

Ranjeet Natarajan
Ranjeet Natarajan August 9, 2026 5 min read 986 words
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Mulberry Silkworm Farming in Varanasi: Practical Guide

Why Varanasi suits mulberry sericulture

Varanasi district sits in a climate favorable to mulberry growth and bivoltine or multivoltine silkworm rearing: warm temperatures, long growing season, and well-established rural labour. With irrigation availability and good road connections to silk markets, small to medium-scale sericulture units can be viable. This guide focuses on practical steps and best practices tailored to the area.

Quick overview of the production cycle

  • Establish mulberry orchards (leaf source)
  • Maintain quality leaf supply through pruning, fertilisation and irrigation
  • Rear silkworms in controlled houses across 4–6 instars until cocooning
  • Harvest, dry and sell cocoons to reelers or buying centres

Choosing varieties

Selecting the right mulberry and silkworm strains is critical.

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Mulberry cultivars

  • Common mulberry (Morus alba) varieties adapted to Uttar Pradesh are preferred for leaf yield and palatability.
  • Choose high-yield, pest-resistant clones from local agricultural or sericulture departments—these will perform better under local conditions.
  • Planting pattern: high-density hedgerows or block plantation depending on land—hedgerows allow multiple prunings per year for steady leaf supply.

Silkworm breeds

  • Multivoltine strains: more suited to hot, humid conditions and multiple crops per year; common in much of India.
  • Hybrid or bivoltine × multivoltine crosses: may give better silk quality and productivity but require stricter rearing conditions.
  • Source disease-free layings (eggs) from certified stations rather than informal suppliers.

Land, planting and orchard management

Mulberry responds well to prepared land and regular pruning.

  • Soil and location: well-drained, fertile soils are preferred; avoid waterlogged fields. A near-water source is useful for irrigation.
  • Planting density: for hedgerow systems, keep spacing to allow annual or biannual pruning and easy leaf picking—consult local extension for exact spacings based on chosen cultivar.
  • Pruning schedule: timely pruning stimulates fresh leaf growth. Stagger pruning across plots to ensure continuous leaf supply for successive silkworm batches.
  • Fertilisation and irrigation: maintain plant vigour with appropriate N-P-K and organic manure. During leaf production phases, ensure adequate moisture to keep leaves tender and nutritious.

Setting up the rearing house

Good rearing houses protect larvae from temperature swings, contamination and pests.

  • Structure: simple, well-ventilated rooms with smooth, washable surfaces work. Avoid direct sunlight on rearing trays.
  • Sanitation: separate rooms for different instars helps reduce disease spread. Clean and disinfect between crops. Keep animals and birds away.
  • Temperature and humidity control: aim to maintain temperatures around 24–28°C and relative humidity of 70–85% during active rearing—adjust for stage and strain. Use natural ventilation, shade nets, and humidification where needed.

Rearing practices — stage by stage

1. Incubation and hatching

  • Incubate eggs under clean, stable conditions. Avoid temperature shocks. Transfer neonates carefully to fresh leaves shortly after hatching.

2. Early instars (1–3)

  • Provide tender, clean leaves; these instars need frequent small feedings. Use young leaves from recent prunings.
  • Keep trays clean—remove uneaten leaves and frass regularly. Change bedding materials or trays between crops.

3. Later instars (4–5)

  • Feed ample, high-quality leaves. Larvae eat much more at these stages—plan leaf supply accordingly.
  • Prevent overcrowding; give space for movement and spinning. Introduce support frames or trays for spinning when larvae show signs of mounting behavior.

Sanitation and disease management

Diseases and poor hygiene are common causes of crop failure. Prevention is the most effective tool.

  • Buy disease-free layings (DFLs) from recognised centres.
  • Practice strict hygiene: disinfect trays, tools and clothing between batches. Quarantine any suspicious stock.
  • Common problems: grasserie, flacherie (bacterial), and muscardine (fungal). Early detection and isolation minimize loss.
  • Use recommended disinfectants and follow local extension guidelines for safe chemical or biological controls. Avoid indiscriminate antibiotic use.
  • Control pests such as ants and rodents around the rearing area; they can cause stress and spread pathogens.

Nutrition and leaf quality management

Leaf quality directly affects cocoon weight and silk quality.

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  • Harvest leaves in the morning when turgor is good; avoid dusty or wilted foliage.
  • Feed younger, tender leaves to early instars and progressively larger leaves to later instars.
  • Monitor foliar nutrition: deficiency symptoms reduce palatability—correct via soil amendments on the orchard, not by spraying leaves on the day of feeding.

Cocooning, harvesting and post-harvest handling

  • Provide clean, adequate space and support for spinning. Cocoons should be uniform and unsoiled.
  • Harvest cocoons promptly when ready. Avoid delays that invite predation or colour loss.
  • Drying and storage: dry under shaded, ventilated conditions if needed to reach safe moisture for storage. Store in insect-proof containers until sale or sending to the reeling unit.

Economics and market channels in Varanasi

Before scaling, run a simple cost-benefit estimate for labour, leaf production, infrastructure and recurrent inputs. Common market channels include:

  • Local cocoon buying centres and cooperatives
  • Direct sale to small reelers or silk processing units in nearby towns
  • Value addition by forming farmer groups to aggregate supply and negotiate better prices

Develop relationships with buyers and check quality criteria they require (cocoon grade, weight, moisture).

Labour, training and support

  • Skill matters: train workers in handling neonates, sanitation, and disease spotting. Small mistakes in early instars magnify later.
  • Leverage local sericulture extension services for training, DFL supply and technical support.
  • Forming producer groups reduces input costs and eases market access.

Practical tips and common pitfalls

  • Always stagger cropping and pruning so you can run continuous rearing cycles without leaf shortages.
  • Avoid overstocking in trays: crowding raises temperature, humidity and disease risk.
  • Do not rely on a single buyer—build multiple contacts and check prices regularly.
  • Keep simple records of dates, egg batches, survival rates and cocoon yield to identify problems early and improve practices over time.

Where to get local help

Contact district agriculture or sericulture offices, local cooperatives, or extension workers for certified DFLs, recommended mulberry clones and training schedules. They can also advise on subsidies, seed material and small loans if available.

Conclusion

Mulberry silkworm farming in Varanasi can be profitable when you manage leaf supply, maintain strict hygiene, choose appropriate varieties, and build market connections. Start small, document results, and scale as you gain experience. Practical observation—timely pruning, clean rearing, and careful handling—will improve yields more than chasing unverified high-input shortcuts.

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Ranjeet Natarajan
Ranjeet Natarajan

Contributing writer at Agriculture Novel — telling the stories that sustain us.

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