Department of Sericulture

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Department of Sericulture Predators of Silkworm Dr. Mahesha H B Associate Professor Department of Sericulture Yuvaraja’s College, University of Mysore, Mysore, India 9 December 2018 www.hbmahesh.weebly.com

Ant Phylum: Arthropoda Class: Insecta Order: Hymenoptera Family: Formicidae Attack in gregarious forms i.e., in groups and are also considered as predator of silkworm during rearing, spinning, preservation cocoons before marketing as well as storage of stifled cocoons for reeling. Controlled by using ant well during silkworm rearing and by the application of insecticides during outside cocoon spinning. 9 December 2018 www.hbmahesh.weebly.com

These lizards are most dangerous predators of during early instars. Phylum: Chordata Class: Reptilia Order: Squamata These lizards are most dangerous predators of during early instars. Model rearing house with wire mesh to all windows and doors are recommended to control the lizards. 9 December 2018 www.hbmahesh.weebly.com

Squirrel Phylum: Chordata Class: Mammalia Order: Rodentia These are major predator of silkworm during cocoon spinning, preservation of cocoons before marketing as well as stored stifled cocoons. Squirrels eat away the pupae and causes extensive damage to the cocoon crop. Model rearing house and strict vigilance during cocoon spinning is recommended to control the squirrels 9 December 2018 www.hbmahesh.weebly.com

Crow Phylum: Chordata These crows are major predator of silkworm during spinning, when the mountages are kept outside the rearing room. Crows eat away the larvae and causes extensive damage to the cocoon crop, if rearer do not take care during outside spinning i.e., strict vigilance. Class: Aves 9 December 2018 www.hbmahesh.weebly.com

Rat Phylum: Chordata These are also major predator of silkworm during silkworm rearing, cocoon spinning, preservation of cocoons before marketing as well as stored stifled cocoons. Rat proof model rearing room is recommended to control the rats. Class: Mammalia Order: Rodentia 9 December 2018 www.hbmahesh.weebly.com

Acknowledgements to Internet 9 December 2018 www.hbmahesh.weebly.com