cover image: The Indian Forest Records  Report on Lac and Shellac

Premium

20.500.12592/xx6zhv

The Indian Forest Records Report on Lac and Shellac

1921

The allusion * is to the vast numbers of minute lac insects which emerge at the period of swarming and settle on the young shoots of the " host "-tree to suck its juice and exude the lac of commerce. [...] (2) The vitality and hardiness of the strain or variety of insect engaged in the production and its general efficiency as a producer of lac from the juice of the particular plant on which it is fixed. [...] The honey-dew is excreed the lac-dye accumulated in the body and in the eggs while the various components of " lac " are apparently elaborated in special secretory glands and exude like sweat from various parts of the body the yield being specially abundant from the female during the period of gestation. [...] VIit only (or mainly) on plants more or less afflicted with gummosis " a disease involving an abnormal growth of gum-producing bacteria in the tissues of the plant ; the suctorial activities of the insect by removing the gum and the bacteria that produce it thus actually promote the welfare of the plant by reducing the disease. [...] With a view to further consideration and enquiry it is here suggested that the period of intense lac production imediately following the impregnation of the female lac insect coicides with or is in some way dependent on the corresponding period of vegetative activity of the host ; and that the reason why the winter brood takes so long to mature and why a comparatively small amount of lac is
agriculture environment
Pages
187
Published in
India
SARF Document ID
sarf.120236
Segment Pages Author Actions
Frontmatter
i-x H. A. F Lindsay, C. M Harlow view
Chapter I The Lac Insect
1-12 H. A. F Lindsay, C. M Harlow view
Chapter II The Host-Trees of the Lac Insect
13-21 H. A. F Lindsay, C. M Harlow view
Chapter III Distribution
22-25 H. A. F Lindsay, C. M Harlow view
Chapter IV Cultivation
26-33 H. A. F Lindsay, C. M Harlow view
Chapter V Suggestions for Improved Methods of Cultivation
34-43 H. A. F Lindsay, C. M Harlow view
Chapter VI Collection and Storage
44-48 H. A. F Lindsay, C. M Harlow view
Chapter VII Lac Rents and Leases
49-56 H. A. F Lindsay, C. M Harlow view
Chapter VIII Manufacture.#x2014;Part I
57-68 H. A. F Lindsay, C. M Harlow view
Chapter IX Manufacture.#x2014;Part II
69-77 H. A. F Lindsay, C. M Harlow view
Chapter X Internal Trade of India
78-87 H. A. F Lindsay, C. M Harlow view
Chapter XI Foreign Trade
88-95 H. A. F Lindsay, C. M Harlow view
Chapter XII Summary of Recommendations
96-97 H. A. F Lindsay, C. M Harlow view
Appendices
98-162 H. A. F Lindsay, C. M Harlow view
Backmatter
i-xi H. A. F Lindsay, C. M Harlow view

Related Topics

All