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Morus alba, known as white mulberry, common mulberry and silkworm mulberry, [2] is a fast-growing, small to medium-sized mulberry tree which grows to 10–20 m (33–66 ft) tall. It is native to China and India and is widely cultivated and naturalized elsewhere.
Silkworms are the larvae of silk moths. The silkworm is of particular economic value, being a primary producer of silk. The silkworm's preferred food are the leaves of white mulberry, though they may eat other species of mulberry, and even leaves of other plants like the Osage orange. Domestic silk moths are entirely dependent on humans for ...
Flacherie (literally: "flaccidness") is a disease of silkworms, caused by silkworms eating infected or contaminated mulberry leaves. Flacherie infected silkworms look weak and can die from this disease. Silkworm larvae that are about to die from flacherie are a dark brown.
Mulberry rust is a disease caused by Gymnosporangium mori, which only occurs on the Morus plant, the familiar mulberry. [9] Morus is grown for the breeding of Bombyx mori (silkworms) as part of the silk industry. [10]
Bombyx is the genus of true silk moths or mulberry silk moths of the family Bombycidae, also known as silkworms, which are the larvae or caterpillars of silk moths. The genus was erected as a subgenus [ 2 ] by Carl Linnaeus in his 10th edition of Systema Naturae (1758).
In Thailand, most silk is produced by small, family-run farms in rural areas, from silkworms that are reared year-round. But changes in seasons, climate, and feed can create tiny variations in the ...
Black mulberry was imported to Britain in the 17th century in the hopes that it would be useful in the cultivation of silkworms. [11] It was much used in folk medicine, especially in the treatment of tapeworms. The United States has native red mulberries, [12] as well as imported black and white mulberries.
The silkworms are fed with mulberry leaves, and after the fourth moult, they climb a twig placed near them and spin their silken cocoons. The silk is a continuous filament comprising fibroin protein , secreted from two salivary glands in the head of each worm, and a gum called sericin , which cements the filaments.