Mkt_Doc_Lac.pdf. (2013). 4. Report: The
Abstract: Luk (Laccifer lacca Kerr) is an animal origin drug with possible contraceptive properties. Objec- tive: Antiovulatory activity was performed on mature female Wistar rats by cyclic administration of Luk. (Lac). The animals were divided into 4 groups of six each, one control group and three test groups (A, B and. C).
Kerr described the insect under the name of Coccus lacca. + The italics are mine. t Samulcotta (Zixyphus jujuba) were inoculated with Laccifer lacca, the brood of which was obtained from Mirzapore, through . Dictionary, on the other hand, tells us that “lac is the product of Coccus lacca.. . . It appears designed to answer
Kerria lacca is a species of insect in the family Kerriidae, the lac insects. These are in the superfamily Coccoidea, the scale insects. This species is perhaps the most commercially important lac insect, being a main source of lac, a resin which can be refined into shellac and other products. This insect is native to Asia.
Laccifer Oken, but he presmnably had no access toOken's work. I am indebted to Mr. C. D. Sherborn for a copy of. Oken's account, in Lehrb. Naturg., III (l), 1815, p. 430. He proposes a genus Laccifer, for "Chermes or Coccus lacca." It is stated to be thesource of thegum-lac, and to occur by the. Ganges on Mimosa cinereaand
The lac insects of India, namely Laccifer lacca and its closest allies, feed and breed on a variety of plants of which about 113 t species are now known in India (Tables I, 2 ). Of these, barely about 17 have so far been found to be of commercial importance. The following brief history of our knowledge of the host-plants shows
The external anatomy of the female lac insect, Laccifer lacca, has been studied by a number of workers, but few have so far touched the internal anatomy. There appears, however, to be some confusion regarding the digestive and nervous systems, and it therefore seems desirable to give a brief description of each of them.
Lac is the scarlet resinous secretion of a number of species of lac insects, of which the most commonly cultivated species is Kerria lacca. Cultivation begins when a farmer gets a stick (broodlac) that contains eggs ready to hatch and ties it to the tree to be infested. Thousands of lac insects colonize the branches of the host
Lac is one of the most important non-timber forest products and massively cultured in East Nusa Tenggara. It is the resinous secretion of lac insects (Laccifer lacca Kerr) which serves as a shield to protect the insects themselves from their enemy. Parasites and predators of the lac insect are the major problem associated with

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February 2018