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Topic: Lac insect



  
 Lac - Wikipedia, the free encyclopedia
Lac is the scarlet resinous secretion of the insect Laccifer lacca.
Thousands of these tiny insects colonize branches of suitable host trees and secrete the resinous pigment.
http://en.wikipedia.org/wiki/Lac_insect

  
 Shellac
Lac are scale insects (Laccifer Lacca) which live on trees called lac host trees where they secrete the lac resin which is scraped off and manufactured into shellac.
Lac insects thrive on certain trees and the principal lac host trees in India are Palas, Kusum and Ber.
http://www.antcons.com.au/Shellac.html

  
 THE INDIAN LAC INSECT IN TAIWAN, ONCE A BENEFICIAL INSECT, NOW A NUISANCE.
Several natural enemies were identified and the symbiosis between the lac insect and the ant usually occurred.
Susceptibility of the insect among various varieties of longan and lichee showed no significant difference.
Experiments in the green house showed that emulsive spraying over the tree was more effective against the insect than granular treatment of the root zone or painting chemicals on tree trucks or branches.
http://www.entsoc.org.tw/english/journal/1vol/no1/13.htm

  
 Non-wood forest products for rural income and sustainable forestry - INSECT DYES 5
Lac insects can be cultured over a fairly wide range of the tropics and sub-tropics and on a large number of host trees (see Table 10).
Relation of lac production by lac insects to the chemical composition of host plants.
The lac insects fall under the Laccaferinae sub-family of the Lacciferidae, and of the various species the most important for commercial production is Laccifer lacca.
http://www.fao.org/docrep/V8879E/V8879e08.htm

  
 Basic Information on Lac
Lac is the hardened resin, secreted by the tiny lac insect belonging to a bug family.
Lac insects settle closely on the twigs of certain host trees, suck the plant sap and grow, all the while secreting lac resin from their bodies.
Lac yields, besides resin, other useful products such as lac dye and lac wax.
http://www.icar.org.in/ilri/basicinfo.htm

  
 Uses of lac insect in industries
The commercial shellac is produced by the females of a species of coccids, the lac insect, Kerria Rlacca (Kerr) (Homoptera: Tachardiidae).
It is pointed out in that book that lac is a product of the lac insect on plants; it's purple-coloured nymphs may be conveyed to the branches, upon hatching, to produce lac.
Since 1960's the lac insect was considered as a serious pest damaged to sisty six species plants, particularly on the fruit trees, litchi, longan, sugar apple, and Ficus spp.in Taiwan.
http://www.entsoc.org.tw/english/specialpub/5/17.htm

  
 shellac --  Encyclopædia Britannica
sticky, resinous secretion of the tiny lac insect, Laccifer lacca, which is a species of scale insect.
sticky, resinous secretion of the tiny lac insect, Laccifer lacca, a species of scale insect; deposited on the twigs and young branches of several varieties of soapberry and acacia trees and...
commercial resin marketed in the form of amber flakes, made from the secretions of the lac insect, a tiny scale insect, Laccifer lacca (see lac).
http://www.britannica.com/eb/article?eu=69001&tocid=0&query=shellac

  
 MSN Encarta - Dictionary - lac insect
Search for " lac insect " in all of MSN Encarta
Asian insect: a southern Asian insect, the female of which secretes a substance ( lac) that was used in the past to make shellac.
Click here to search all of MSN Encarta
http://ca.encarta.msn.com/dictionary_1861692936/lac_insect.html

  
 THE MYSORE LAC INSECT
The lac insect is a highly gregarious insect.
It normally forms what may be called a giant colony or stick lac and the minute morphological and physiological differences, difficult to observe separately are obvious in their totality by comparing specimens of stick lac belonging to two different species of lac insect.
Lacshadia mysorensis is the only insect which has three life cycles a year, and the while its productivity has increased its size decreased, just as is the case with polyvoltine silk worms.
http://wgbis.ces.iisc.ernet.in/biodiversity/documents/title121the.htm

  
 Lobate Lac Scale, Paratachardina lobata lobata (Chamberlin) (Hemiptera: Sternorrhyncha: Coccoidea: Kerriidae)
The lobate lac scale, Paratachardina lobata lobata (Chamberlin) (Hemiptera: Sternorrhyncha: Coccoidea: Kerriidae), a scale insect native to India and Sri Lanka, was found for the first time in Florida in August 1999 by personnel of the Florida Department of Agriculture and Consumer Services, Division of Plant Industry (DPI) (Hamon 2001).
Undoubtedly, movement of infested host plants from one locality to the next is a key factor in spreading scale insect pests in urban areas.
In 2001, the scale insect species was found on 11 sites in Broward County and six sites in Miami-Dade County.
http://edis.ifas.ufl.edu/IN471

  
 Removal of Varnish From Paper Artifacts
Lac is a resinous substance formed on the Butea Frondosa tree by a variety of scale insect, Tachardia Lacca.
When the secretion contacts air, it solidifies, forming a protective "scale" or "cell" around the insect.
The third natural resin, shellac or gum-lac, has been used in India since ancient times.
http://aic.stanford.edu/sg/bpg/annual/v11/bp11-32.html

  
 MFA - CAMEO - Results
A resinous substance excreted by the female of the lac insect, Laccifer lacca, native to India.
A deep red colorant extracted from the crude shellac resin excreted by the lac insect, Laccifer (Tachardia) lacca (formerly Coccus lacca), indigenous to southeast A
A solid fatty acid ester compound obtained from shellac resin.
http://www.mfa.org/_cameo/frontend/material_results.asp?materialname=l&browse=1

  
 lac insect - yourDictionary.com - American Heritage Dictionary
lac insect - yourDictionary.com - American Heritage Dictionary
Any of various insects of the subfamily Lacciferinae, especially Laccifer lacca of southern Asia, the female of which secretes lac.
http://www.yourdictionary.com/ahd/l/l0008100.html

  
 ILRI Resources & Manpower
The Institute is responsible for the collection and maintenance of germplasm of lac insect lines as well as lac host trees.
Presently, the ILRI is maintaining 7 distinct strains of the lac insect, one cross, one in-bred line, as well as 9 insect stocks, collected from various parts of the country.
The Farm also sells certain agricultural produce, ornamentals, broodlac, grasses etc. to augment the resource generation for the Institute
http://www.icar.org.in/ilri/resman.htm

  
 lac insect
of southeast Asia, the female of which secretes lac, a substance used in the preparation of shellac, wax, etc.
http://www.factmonster.com/ipd/A0508927.html

  
 Search Results for lac - Encyclopædia Britannica
sticky, resinous secretion of the tiny lac insect, Lac cifer lac ca, which is a species of scale insect.
This insect deposits lac on the twigs and young branches of several varieties of soapberry and...
It is located in Nord-du-Québec region in west-central Quebec and forms the headwaters of the Rupert River, which drains into James Bay.
http://www.britannica.com/search?query=lac&submit=Find&source=MWTEXT

  
 Notebook
Most of these were fugitive and they soon faded when exposed to sunlight.
There were notable exceptions, however, like the materials obtained from the madder root, the woad plant, or from the lac insect which, under conditons not too unfavorable, sometimes lasted for centuries.
Only slightly less available were the colored earths which included the yellow, red, and brown ochres and clays that abound on the earth's surface in sedementary deposits.
http://www.noteaccess.com/MATERIALS/PGeneral.htm

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