Showing papers on "Eucalyptus oil published in 1991"

Postembryonic development and reproduction inCorcyra cephalonica (Stainton) (Lepidoptera: Pyralidae) on exposure to eucalyptus and neem oil volatiles.

Abstract: Postembryonic development and adult emergence ofCorcyra cephalonica (Stainton) were adversely affected in varying degrees when individuals were reared for the first 2 weeks of larval life or for a similar duration from the sixteenth day of their lives in an environment of eucalyptus oil volatiles. This was, however, not so in the progeny of parents exposed to these volatiles for only 5 min. Exposure of this pest to neem oil volatiles during larval stages for similar periods failed to produce such adverse effects. A marked decline in the reproductive potential, in terms of egg output and egg hatchability, of the moth was observed when the larvae were reared for the first 15 days in the presence of eucalyptus oil volatiles or when the parents were exposed for 5 min to such an environment during adult life. Thus, a “carry over” of the detrimental effect of the volatile(s) of this oil on the reproductive potential of the pyralid was indicated.

Effect of eucalyptus oil on germination and growth of Phaseolus aureus Roxb.

Abstract: Crude oil from Eucalyptus globulus and E. citriodora was extracted and the rich components, cineole and limonene were fractionated. The vapours of these oils and fractions were adsorbed onto the soil in one set of germination trials while in the other set a vapour column of volatile oils was maintained above the oil-treated soil. In both sets seed germination, seedling growth, relative growth rate, water content, height and number of leaves of Phaseolus aureus var. ML-267 were compared to those of controls. All parameters were found to be significantly affected. The effect was more pronounced with a combination of eucalyptus oil onto soil and a vapour-rich air column. There was a strong correlation between the vapour concentration and its inhibitory effect.

The effect of eucalyptus oil on growth and aflatoxin production by Aspergillus flavus

Abstract: The effect of eucalyptus oil on growth and aflatoxin production by Aspergillus flavus was tested at three levels, viz. 0·05, 0·1 and 0·2 ml/50 ml SMKY medium. After 6 days of incubation on 0·05 and 0·1 ml supplemented SMKY medium, growth and toxin production were inhibited while at 0·2 ml concentration there was no growth. However, after 12 days of incubation toxin production was greater than the controls.

Repellent for aquatic life

Abstract: PURPOSE:To obtain an extremely safe repellent for aquatic life, exhibiting repelling effect against aquatic adhesive life with an extremely small amount and effective for preventing the damage caused by the proliferation or adhesion of the aquatic life by using a monoterpene and/or sesquiterpene as active components CONSTITUTION:The objective agent contains 001-50wt% of monoterpene and/or sesquiterpene (eg limonene, terpineol, citral, citronellal, 1,8-cineole or bisabolene) as active components The active component is used in the form of an antifouling paint by substituting the conventional antifouling agent or in the form of an aqueous solution or emulsion by using a solubilizing agent or an emulsifier Essential oils containing monoterpene and sesquiterpene (eg orange oil, lemon oil and eucalyptus oil) can be used in the similar manner

Process for producing composition having medicinal effect

Abstract: A medicinal prepn. contains menthol, camphor, peppermint, salicylic-acid, chloroform, essential eoil of rosemary, rose extract, couch-grass-root, celandine, nettle infusions, ground-ivy, garden sape, oil extract of marigold, extracts of lime tree; red currant, savory, St John's wort, green wallnut husk, chamomile extract, essential oil of juniper, thuja, sweet fennel extract, eucalyptus oil and/or dill extract. - Above ingredients are mixed as follows:-a) menthol, camphor, peppermint,r salicylic-acid, chloroform and oil of rosemary, of b) rose oil, infusion of couch grass roots and/or ground ivy are mixed, or c) sage, peppermint and rosemary are mixed, or d) oil extract of marigold and mint are mixed or e) extract of lime tree, of mixt, of red-currants and savory and celandine, or f) St John's wort extract, green wallnut shell and chamomile extract are mixed; or g) juniper oil is mixed or h) oil of thuja is mixed, or i) extract of sweet fennel and dill extract is mixed or g) euacalyptus oil and dill extract's is mixed. - Obtd. mixts. are used individually in aq. alcoholic or opt. glycerol contg. systems together with customary vehicles for the prodn. of wet-wipes.