Introduction. Diseases 7. De Wright & Am. J. Genet. ... Introduction. The Lyonet’s gland, first described in 1760 by Lyonet in lepidopteran larvae ( Machida 1965), is often referred to as “Filippi’s gland” in the silkworm Bombyx mori L. (Lepidoptera: Bombycidae) ( Waku and Sumimoto 1974; Akai 1984).This gland usually occurs close to the excretory duct of the silk gland, and communicates with it ( Waku and Sumimoto 1974). Protozoan Diseases: Pebrine: The most virulent protozoan disease of silkworm is Pebrine, so named as the infected worms show some pepper-like black spots. Host Plants of Tasar Silkworm. Domesticated – Mulberry, Reared tasar 2. Disinfection is carried out prior to commencement of rearing as a precaution against pathogens, which remain in the rearing house. External Features 4. Received: October 25, 2011; Accepted: May 21, 2012. 1. Temperate TAsar (A. Proylei) This is an hybrid worm. Introduction. Introduction Sericulture, or silk farming, is the rearing of silkworms for the production of silk. Host plants of Silkworm. o There are many varieties such as the Chinese tasar silkworm Antherae pernyi Guerin which produces the largest quantity of non-mulberry silk in the world. Being polyphagous, the silkworm usually feeds on the leaves of primary food plants of Andhra Pradesh is assisting the farmers and entrepreneurs to take up Sericulture activities in the State. 1.7. Fr. Keywords: Sericulture, tasar, tribes Introduction The master creators of the world famous Indian tasar belong to aboriginal forest populous who have been rearing tasar silkworms for centuries. Host plants of tropical tasar silkworm Antheraea mylitta Drury is a semi-domesticated sericigenous insect which produces the world famous Indian tropical tasar silk. Introduction: Tasar sericulture involves all the activities pertaining to rearing of Tasar silkworm (Antheraea mylitta Drury), harvesting of Tasar cocoons, production of Tasar silk yarn from cocoons and weaving of Tasar yarn into fabric.The major producers in the sector include Silkworm rearers, yarn producers and weavers. Performance of tasar silkworm under different chawki rearing 550 Of this, nearly about 85 per cent is received during south - west monsoon (2nd week of June – 1st week of October), 7.78 per cent during North East monsoon (2nd week October – 3rd week of December), 2.87 per cent during winter (January-February) and 7.48 per cent during Introduction The rearing of silkworm species of … Introduction. It is well known for genuine silk. Host Plants of Muga Silkworm. Life Cycle 5. are some of the endemic species of the tropical region of India. Tasar Silkworm rearing is a seasonal activity and from the Tasar Seed Cocoons harvested from the first two crops, Tasar silkworm eggs are prepared for commercial crop (3rd crop) rearing for production of Tasar Cocoons by the Tribal farmers. It should be opened 24 hours prior to introduction of worms. ), Bogori (Zizyphus jujuba Mill) etc. It is a backbone Andhra Pradesh is 2nd largest raw silk producer in India, next to Karnataka. Oak Tasar Silkworm Antheraea yamamai Japan Q. acutissima Muga Silkworm Antheraea assama India Litsea polyantha L. citrata Machilus bombycine Eri Silkworm Philosamia ricini India Ricinus communis Manihot utilisma Evodia fragrance B. ADVERTISEMENTS: Causative organisms: Pebrine is caused by the […] Classification based on occurrence . It is an Studies on the biodiversity and ecological aspects of Tasar silkworm, Antheraea mylitta, Andhra local ecorace, in relation to other ecoraces Renuka. Each of the silkworm species is specific in its feeding habits. The Book Is Divided Into 9 Chapters Such As-Introudction, Food Plants Of Oak Tasar Silkworm, Oak Propogation, Disease And Pest Management In Oak, Biography Of Oak Tasar Silkworm, Silkworm Rearing And Ethnology, Silkworm Seed Technology, Silkworm Rearing Technology, Ilk Reeling And Spinning. Introduction Muga silkworm Antheraea assamensis Helfer belongs to Lepidoptera of Saturniidae family and, geographically isolated only to NE region of India. Economic Importance 6. G International Journal of Environmental Sciences Volume 4 No.2 2013 133 Figure 2: Rearing of Tasar Silkworm, Antheraea mylitta, Bhandara ecorace at Bhandara, Nagpur. Protozoan Diseases 2. This ignorance became more pronounced when one of … Tasar Silk o The tasar silkworms belong to the genus Antheraea and they are all wild silkworms. Host plant of Mulberry Silkworm. The tasar silkworms belong to the genus Antheraea and they are all wild silkworms [54]. GENERAL INTRODUCTION Silk not only refers to Bombyx silk whose insects are reared on mulberry leaves and is a high priced, valuable and delicate textile, called the "Queen of Fibres", but also to Tasar silks where tasar worms are reared on Ain, Oak, Arjun, … The oak tract extending from Jammu and Kash-mir in the West to Manipur in the east, embracing Himachal Pradesh, Uttar Pradesh, West Bengal, Sikkim, Assam, Arunachal Pradesh, Meghalaya, Mizoram and Nagaland inhabits the temperate tasar silkworm. The silkworm-food-plant-interaction was studied with six different food plant species viz. An experimental rearing of tropical tasar silkworm, Antheraea mylitta Drury was conducted to study silkworm-food plant-interaction and thereby to search for an alternate silkworm food plant. Antheraea mylitta Drury (Order: Lepidoptera, Family: Saturniidae) is a sericigenous semi-domesticated tropical tasar silkworm, distributed all over India (12 – … Introduction The Tasar silkworm, Antheraea mylitta Drury (Daba TV) is a commercial and wild sericigenous insect, exists in nearly 17 Indian states in the form of 44 ecological populations (ecoraces) or biotypes (Mohanty, 2003). Fig. Besides these, the silkworm feeds on Phutuka (Melastoma melabathricum Linn. TASAR SILKWORM ECORACES 6 3.1 Ecorace – Daba 8 3.2 Ecorace – Sukinda 9 3.3 Ecorace – Raily 10 Keywords: Tasar silkworm, Antheraea mylitta D, Shorea robusta (Sal), Modal, Eco-race, Conservation, Similipal Forest. ), Asan (Termanalia tomentosa, W & A) and Sal (Shorea robusta Gaertn.). Even if, the harvested vanya variety produced by a wild silkworm of Antheraea cocoons are less in number, their quality can compensate The tasar silkworm, Antheraea mylitta, is free-living and exposed to attack by various natural enemies during its larval stages.Besides the protozoan disease caused by Nosema sp., the insect is attacked by two insect endoparasitoids, namely Blepharipa zebina (a tachinid commonly called the uzi fly), and Xanthopimpla pedator (an ichneumonid known as the yellow fly). Introduction. 4 Appendices, Index. In view of potentiality of the sector to develop the farming community to up-lift rural economy, the Govt. G, Shamitha. 1. It is a labor intensive activity is providing direct and indirect employment to a large number. The rearing of silkworm species of the families Bombycidae and Saturniidae is an age old practice that is an important part of the rural economy in India. The tropical tasar silkworm (Antheraea mylitta) produces tasar silk, otherwise known as vanya silk, that is famous for its luster, durability and uniqueness. The room or house being disinfected should be kept airtight during disinfection and should remain closed for 15 - 20 hours after disinfection. ADVERTISEMENTS: In this article we will discuss about the Diseases of Silkworm:- 1. Disinfection is done using 2% formalin solution. Key words: Antheraea mylitta, quantitative trait, RAPD, SCAR marker, tasar silkworm. INTRODUCTION 1 1.1 Biodiversity 1 1.2 India's Biodiversity Profile and Status 1 2. [Renuka G. and Shamitha G. 2016 Genetic variation in ecoraces of tropical tasar silkworm, Antheraea mylitta using SSR markers. Fungal Diseases. Host plants of tasar silkworm . The important food plants are Arjun (Termanalia arjuna Roxb. Introduction. Introduction Tropical tasar silkworm, Antherae amylitta D (Lepidoptera:Saturniidae) is a commercially important insect and a valuable component of Asian non-mulberry silk industry. Introduction. Wild- Tasar Muga and Eri. Introduction Silkworms are well known as an efficient large-scale producer of silk threads. Bacterial Diseases 3. History of Mulberry Silkworm: Bombyx mori is popularly called the Chinese silkworm or Mulberry silkworm moth. Species of silkworm Mulberry silkworm Tasar silkworm Muga silkworm Eri silkworm Oak silkworm Giant silkworm History Types of silk Tasar Eri Mulberry Muga Life cycle Advantages Uses Diseases Pebrene Grasserie Flacherie Muscardine India has the unique distinction of producing all the four varieties of silk viz., mulberry, muga, tasar and eri. 1. Tussar Silk , also often referred to as ‘Wild Silk, Tassar Silk, or Tusar Silk is an exquisite thread obtained from a wide winged moth that is yellowish-brown in colour. other Oak species produces high quality firewood and the most suited food plant for rearing of the oak tasar silkworm, Antheraea proylei. It is widely distributed in the natural forests located at different altitudes over central India. Silkworm hybrids, Silkworm pupae 1. INTRODUCTION The Similipal forest (Map-I) in Mayurbhanj district of Orissa state, representing the totality of plants, animals (including humans), and INTRODUCTION growth of larvae and better crop yields as the feed quality Among silks, the tropical tasar is an important ratio and silk filament [5, 6]. 2.2. Geographical isolation of this silkworm is indicative of its special requirements for geo-climatic conditions that prevail in this region i.e. Cultivation of Silkworm food plants is an agricultural activity. There are many varieties Tasar silk worm such as the Chinese tasar silkworm Antherae pernyi Guerin which produces the largest quantity of non-mulberry silk in the world, the Indian tasar silkworm Antheraea mylitte Tropical tasar silkworm, Antheraea mylitta Drury (Lepidoptera: Saturniidae) is a polyphagous silk producing insect of … Introduction to Mulberry: Sericulture is an agro-industry which means, combining both agriculture and industry, the final product is silk. Introduction of this new sericiginous interspecific hybrid which is a cross between Forest dependent people rear its larvae on different forestry host plants twice or thrice in a year for small household income. Cocoons of Temperate Tasar 1.3.1.2. Among the various species of silkworms, the mulberry silkworm (Bombyx mori L.) and the non-mulberry silkworm (Antheraea pernyi) are of common use in sericulture. 95, 777–785] Introduction Microsatellites or simple sequence repeats (SSRs) are tandemly repeated units of one to six nucleotides, abundant in prokaryotic and eukaryotic genomes (Weber 1990; Field Introduction The exploitation and commercialization of tropical tasar silkworm, Antheraea mylitta originated in India, and the tribals of Chotanagpur are their inventers. The importance of silkworm in silk production was known in China during 3500 B.C. worms for high cocoon and shell weights in breeding programs designed to enhance the productivity of tasar silk. SERI-BIODIVERSITY 3 2.1 Tasar Silkworm Biodiversity 3 2.2 Taxonomic review of Antheraea mylitta 4 2.3 Race Concept in Antheraea mylitta 5 3. Oak tasar culture in India is a recent practice which initiated with the synthesis of the Antheraea proylei during 1970s. 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