What are the four stages of life cycle of a silkworm?
Silkworm has four stages in its life cycle viz., egg, silkworm, pupa and moth.
How many stages are in the silkworm life cycle?
four stages
These oversized, anatomically correct figures have been accurately painted and sculpted to show the four stages of Silkworm development: Eggs – 6cm. Larva – 8cm. Pupa (cocoon) – 4cm.
What is the biological name of Muga silkworm?
Antheraea assamensisAntheraea assamensis / Scientific name
How long is silkworm life cycle?
6-8 weeks
The total life-cycle of a Silkworm ranges from 6-8 weeks. Generally, the warmer the weather, the quicker the Silkworm will complete its life-cycle, however, other factors such as humidity and exposure to sunlight are also very important….Eggs.
| Eggs | 10-25 days |
|---|---|
| Lava and worms | 20-33 days |
| Pupa | 10-14 days |
| Moth | 5-10 days |
In which stage of its life cycle does silkworm produce silk?
pupal stage
A pupa is the life stage of some insects undergoing transformation. The pupal stage is found only in holometabolous insects, those that undergo a complete metamorphosis, going through four life stages: embryo, larva, pupa and imago. During the pupal stage, only in the case of Bombyx mori, they produce silk.
What stage is cocoon formed?
cocoon, a case produced in the larval stage of certain animals (e.g., butterflies, moths, leeches, earthworms, Turbellaria) for the resting pupal stage (see pupa) in the life cycle.
Which is the host plant of Muga silkworm?
Muga silkworm, Antheraea assamensis Helfer (Lepidoptera: Saturniidae), the producer of golden silk, is a lepidopteran insect endemic to northeastern India. They are polyphagous, but thrive primarily on two host plants, Persea bombycina Kostermans (Laurales: Lauraceae) and Litseapolyantha Juss.
What does Muga silkworm eat?
Muga silk is the product of the silkworm Antheraea assamensis endemic to Assam. The larvae of these moths feed on som (Machilus bombycina) and sualu (Litsaea polyantha) leaves.
What is the host plant of muga silkworm?
What does muga silkworm eat?
Which is the first stage of life cycle of silkworm?
the egg
The first stage of the life cycle of a silkworm is the egg. A very small egg and a hard structure are laid by the female moth.
How long do silkworms Stay in cocoon?
Approximately 10-28 days after forming the cocoon, the adult silk moth will be ready to emerge. Inside the cocoon is the pupa shell. This shell protects the silkworm as it makes its amazing change.
What is the lifespan of silkworm?
How long does a silkworm take to complete its life cycle? The silkworm’s life cycle is approximately 6-8 weeks long. The silkworm’s life cycle begins when the female silk moth produces eggs.
Which is the most active stage of silkworm?
The larva is the silkworm caterpillar. Since the silkworms (that is the larvae stage) grow so much they must shed their skin four times while growing.
How long is the pupa stage?
Pupal stage may last weeks, months, or even years, depending on temperature and the species of insect. For example, pupal stage lasts eight to fifteen days in monarch butterflies. The pupa may enter dormancy or diapause until the appropriate season to emerge as an adult insect.
Is pupa the same as cocoon?
While pupa can refer to this naked stage in either a butterfly or moth, chrysalis is strictly used for the butterfly pupa. A cocoon is the silk casing that a moth caterpillar spins around it before it turns into a pupa.
What is pest of Muga silk?
Amongst the insect pests that attack muga silkworm, the most formidable ones are the dipteran endo parasitoid, Exorista sorbillans Widemann, otherwise called the uzifly with 25 % damage in the 4th to 5th instar larvae and 20 % at harvesting stage of cocoons during chotua crop (March-April) and the wasp, Vespa …
On which leaves does muga silkworm feed?
Muga silkworm feeds primarily on som (Persea bombycina), but will feed on soalu (Litsea monopetala), dighloti (L. salicifolia) and mejankari (L. citrata) if som is not available. Som occurs throughout Assam and is utilized there for the commercial rearing of muga silkworms (Neog et al., 2005).
What are the primary and secondary host plants of Muga silkworm?
Solution : (i) Primary host plants: Persea bombycina (som) and Litsaea monopetala (Soalu). (ii) Secondary host plants: Litsaea salicifolia (Deighloti) and Litsaea cubeba (Mejankari).