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Diseases of Silkworms and Management
Dr. Shabir Ahmad Bhat
Assistant Professor (SS)
COTS Mirgund
Dr. Firdose Ahmad Malik
Assistant Professor
COTS Mirgund
Topic 1 - Silkworm diseases, infectious and non-infectious diseases
Silkworm diseases and their importance.
Nature and extent of damage caused to sericulture due to these diseases
Infectious and non-infectious diseases of silkworm.
Koch’s postulate
Topic 2- Pebrine (Microsporidian) disease of the silkworms
Pebrine disease, its brief history.
Causal agent, source of infection.
Mode of transmission, incubation period (life cycle).
Symptoms and management of pebrine disease.
Topic 3- Viral diseases of the silkworm
Nuclear polyhedrosis, extent of crop loss.
Causal agent, occurrence, source of infection and pre-disposing factors.
Disease cycle and incubation period
Symptoms and management of viral diseases.
Topic 4- Bacterial diseases of the silkworms
Bacterial flacherie.
Causal agents, occurrence.
Site of infection and predisposing factors
Symptoms and disease management of flacheris
Topic 5- Fungal diseases of the silkworm
Fungal diseases.
Causal agents, occurrence, site of infection and predisposing factors.
Symptoms and management of fungal diseases.
Topic 6- Cross infectivity of crop pests pathogens to silkworms
Silkworm pathogen host range.
Cross infectivity of silkworm pathogens to other pests of agricultural crops and vice versa.
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