Florida Fruits and how Raise Them |
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Page 201 - ... begins to repay the expense of cultivation, even if the ground is not otherwise cropped. After that period, in good years, the produce is the surest source of wealth to the farmer ; and the tree rivals the oak in longevity ; so that the common proverb here is, ' If you want to leave a lasting inheritance to your children's children, plant an olive.
Page 312 - ... of the thick white inner skin; quarter all the oranges and take out the seeds. Chop, or cut them into small pieces; drain all the juice that will come away, without pressing them, over the sugar; heat this, stirring until the sugar is dissolved, adding a very little water, unless the oranges are very juicy. Boil and skim five or six minutes; put in the boiled shreds, and cook ten minutes; then the chopped fruit and grated peel, and boil twenty minutes longer. When cold, put into small jars, tied...
Page 111 - A microscopic examination of the fruit-rind reveals no forms of fungus, but shows the oil-cells to be more or less completely emptied of their contents, and the outer layers, the epithelial cells, clogged with brownish resin, or entirely broken up and divided by fissures, which permit evaporation of the fluids from the underlying cells. The rind of rusted fruit, therefore, shrinks and toughens, and loses by evaporation or oxidation the greater part of its essential oil.
Page 116 - That they do not feed upon the chlorophyl is shown by the color of their intestinal contents, which has no tinge of green, but a clear yellow, unmistakably indicating the source from which it came. Wandering Habits. — While engaged in feeding, the mites remain quiescent for a length of time varying from a few minutes to half an hour. They then move on a short distance and again become motionless. If disturbed they have a habit of erecting themselves upon the leaf, clinging to its surface only by...
Page 120 - So readily do they relinquish their hold when brought into contact with a moving body, that the point of a needle swept across the surface of an infested leaf will usually be found to have several mites adhering to it. The same agencies which assist in the spread of scale-insects undoubtedly serve to scatter the mites. Not only do they climb readily along the web of spiders, but they may frequently be seen upon the bodies of the spiders themselves, which do not seem to be at all disturbed by the...
Page 118 - ... long endure the direct light and heat of the sun, they also avoid dark shade. At midday they are more abundant upon the under side of exposed leaves, and although they at all times show a marked preference for light, they desert those | parts of leaf or fruit upon which it falls brightest. On a leaf partially exposed to the sun, the, mites congregate near one edge in the .morning, and in the afternoon cross to the opposite side of the same surface, following the shifting shade which, by reason...
Page 114 - ... the accessible oil-cells have been emptied of their contents, or the tissues have been too much hardened by advancing maturity to be easily penetrated by their beaks. The effects of their punctures upon the cellular structure of the plant, however, continue after their departure, and upon the fruit, rust develops with a varying interval, depending possibly upon the relative humidity of the air. Usually the discoloration is very apparent after the lapse of a week, and the rind continues to harden...
Page 115 - The length of the adult mite is ().lamm (Т(гътг inch). The young do not differ essentially in structure from the adult mites, but are thick and short, almost cordiform, and the legs are very short. The eggs, which are deposited singly or in little clusters upon the surface of the leaves, are spherical, transparent, with a yellow tinge. Their diameter is more than half that of the mite at its widest part, and they probably increase in size by the absorption of moisture after they are laid, otherwise...
Page 113 - The evidence that rust follows as a sequence upon the depredations of this mite is circumstantial rather than direct, but it is also cumulative. Oranges marked and kept under observation, but allowed to remain upon the tree, have iu all cases rusted after being overrun by the mites.