silkworm Tag

02 Sep

Posted at 08:23h in Miscellaneous
18 views

रेशमकीट का परिचय और कृषि क्षेत्र में उनकी भूमिका The silk moth (Bombyx mori) is a butterfly that caterpillars have used for silk production (sericulture) for thousands of years. Although native to China, silk moths have been introduced around the world, are completely domesticated, and are no longer found in the wild. Adult silk moths have wingspans of 40 to 50 mm (about 2 inches), are thick and have bristles (adult females are larger than adult males). It is usually blonde to light brown, with a light dark band running on its body. The wings are cream-colored and have dark veins extending to the edges. Adults do not eat during the short adulthood of a few days because the mouth area is diminished or absent. Neither can fly. However, males perform a flutter dance, a mating ritual caused by the secretion of female pheromones known as bombykol. Females lay about 300 to 500 eggs and hatch in about 7 to 14 days...

28 Jan

Posted at 07:06h in Crop disease
6,229 views

रेशमकीट के 5 प्रमुख रोग व परभक्षी तथा उनका नि‍यंंत्रण। Silkworm is reared for the production of cocoons, which is the raw material for silk production. It provides gainful employment and helps in the improvement of the socio-economics life of the peoples in the rural areas. During rearing, the silkworm are affected by various types of pathogenic agents viz. protozoa, virus, fungi and bacteria. It has been reported that about 30-400 % of total crop loss is due to the occurrence of four major diseases namely Pebrine (protozoan disease), Flecherie (bacterial disease), Grasserie (viral disease) and Muscardine (fungal disease). Other than diseases Uzi fly is considered as serious endo-larval parasitoid of the silkworm and yield...

25 Apr

Posted at 05:02h in Crop disease
Ranjana Das 5,106 views

मुगा रेशम उत्पादकता में सुधार के लिए मुगा रेशम कीट के मेजबान पौधे (सोम) मे रोग व कीट प्रबंधन Sericulture is a viable cottage industry catering to the economically small and marginal families and hence this enterprise is well. accepted as an instrument for rural development. India has the unique distinction of being the only country in the world producing all the four varieties of natural silk viz. mulberry, tasar, eri and muga on a commercial scale. Among them, Antheraea assamensis, (Helfer) bears special significance for production of golden yellow muga silk which is endemic to North East India.  The muga silkworm is a multivoltine and polyphagous insect. Som (Persaea bombycina Kost) and Soalu...

14 Feb

Posted at 09:54h in Crop Cultivation
P.K.Handique 12,415 views

मूगा रेशम के कीट के बारहमासी मेजबान वृक्ष, सोम (पर्सिया बॉम्ब्सीना) की खेती की तकनीक। Muga silkworm Antheraea assamensis Helfer, is a sericigenous insect secreting a golden yellow coloured lustrous silk. This unusual colour and strong nature of the thread produced from the cocoon of this silkworm are the two important features for which this silkworm is termed unique. Muga silkworm is multivoltine in nature, with six broods per year, including two crops each of pre-seed, seed and commercial. ‘Chotua’ (reared during March-April) and ‘Bhodia’ (reared during August-September) are seed crops, ‘Jethua’ (May-June) and ‘Kotia’ (October-November) are commercial crop while ‘Jarua’ (December-January) and ‘Aherua’ (June-July) are pre seed crops. Jethua and...

08 Aug

Posted at 08:56h in Miscellaneous
एस.एल.यादव 3,400 views

Mulberry silkworm rearing : mean of livelihood मलबरी रेशमकीट को विभिन्न जलवायु स्थितियों में पाला जा सकता है और मलबरी पेड विस्तृत क्षेत्र वाली मिट्टी में उगाया जा सकता है। बेहतर पद्धतियों को अपनाकर मलबरी रेशमकीट कोकुन की अच्छी उपज प्राप्त की जा सकती है। लेकिन इसके लिए अधिक ऊपज देने वाली मलबरी की उत्तम किस्म की पत्ती का होना आवश्यक शर्त है। रेशमकीट का पालन लार्वा अवधि के दौरान पाँच विभिन्न चरणों से होते हुए होती है। लार्वा अवधि में उसे विशेष रूप से निर्मित रेशमकीट पालन शेड में रखा जाता है। साथ ही, उच्च कोटि का रेशम प्राप्त करने के लिए उचित समय पर प्रबंध और गहन देखभाल की जाती...

10 May

Posted at 10:56h in Crop Cultivation
D K Gogoi 10,915 views

रेशमकीट इरी के मेजबान सार्वकालिक पौधे केसेरू की खेती   Ericulture contributes significantly Indian commercial silk production which is mostly confined to north-eastern part of the country i.e. Assam, Meghalaya, Manipur, Nagaland, Arunachal Pradesh and Mizoram. A small quantity of eri cultivation has been extended to Bihar, West Bengal, Orissa, Jharkhand, Chattisgarh, Andhra Pradesh, Uttarakhand and Uttar Pradesh. In addition, Ericulture is practiced in China, Brazil, Russia, Thailand, Philippines, Indonesia, Malaysia, Bolivia, Ethiopia, French, Egypt, Italy etc. Eri silkworm feeds primarily on castor leaves, but sufficient castor leaves are not available throughout the years for commercial rearing. Therefore, Kesseru (Heteropanax fragrans Seem) is used as an alternative food plant during the scarcity of...

27 Apr

Posted at 10:34h in Crop Cultivation
D K Gogoi 20,381 views

सिल्‍क कीट के मेजबान पौधे अरण्डी की खेती  Northeastern region of India is rich in diversity of sericigenous insects and their host plants, out of which, four types namely Muga (Antheraea assamensis), Eri (Samia ricini), Oak tasar (Antheraea proylei) and Mulberry (Bombyx mori) silkworm have been commercially exploited for silk production.  The Eri silkworm is multivoltine and polyphagous sericin producing insects. Eri culture is a traditional agro-based small scale industry, primarily practiced to meet the partial need of warm clothing. Moreover, eri pupae are popular as delicacy among the tribal people of this region. Proximate analysis of pupa showed that it contains 55-60% protein, 25-30% lipid, 4.96% fiber, and other substances, e.g....

07 Mar

Posted at 05:47h in Crop Cultivation
3 views

रतनजोत या जटरोपा की खेती  Jatropha curcus,also known as Ratanjyot or Jangli erandi, is a drought-resistant perennial plant which grows almost anywhere- in marginal/ poor soil even on gravelly, sandy and saline soils. It can thrive on the poorest stony soil. It can grow even in the crevices of rocks. It is a small tree or shrub with smooth gray bark, which exudes a whitish colored, watery, latex when cut. Normally, it grows between three and five meters in height, but can attain a height of up to eight or ten meters under favourable conditions. It has large green to pale-green leaves, alternate to sub-opposite, three-to five-lobed with a spiral phyllotaxis. The petiole...