Pebrine disease in silkworm is caused by

Pebrine disease of silkworm is caused by a sporozoan/protozoan which is

Pebrine disease of silkworms is caused by

Silkworm is a

Muscardine is a disease of silkworms caused by a ...........

Pebrine is a dangerous disease to silkworms caused by ..............

Name the disease of silkworm caused by protozoan parasite. Mention the preventive measures against this disease.

The silkworm is :

Gumboro disease in poultry is caused by