The aphis I find no difficulty in keeping down by the use of Nicoticide--a very strongly concentrated extract of the nicotine principle of tobacco.
Winter beans come to maturity earlier than the spring-sown varieties, and are therefore strong enough to resist the attacks of the aphis by the end of June, when it begins its ravages.
Indeed the insect, it would appear, was a natural parasite of the potato, and some observers have gone so far as to assert that the Aphis Vastator abounded more on healthy plants than upon those affected with the blight.
Mr. Mayne, like many persons at the time, attributed the blight to an insect which some called Aphis Vastator, others Thrips minutissima.
This Aphisis evidently the insect described in Illiger's Magazin, i.
That it is an Aphis and no Coccus is clear from its oral rostrum and the wings of the male, of which Sir Joseph Banks possesses an admirable drawing by Mr. Bauer.
The larvae of Syrphus Pyrastri according to De Geer eat no other Aphis but that of the rose[708].
The larch in particular is inhabited by an Aphis transpiring a waxy substance like filaments of cotton: this is sometimes so infinitely multiplied upon it as to whiten the whole tree, which often perishes in consequence of its attack.
The Aphis flea (Aphis granaria) is a creature destructive to the grain by “sucking the verdure out on’t.
The Aphis Flea—Which attacks the rachis and floral envelopes.
Neither Mr. White nor Mr. Kirby informs us what particular species formed these immense flights, but it is most probable they belonged to the Hop-fly, Aphis humuli.
Never did Turk bend his neck to the bow-string, or rush upon the cimeter with greater courage, than the aphis submits itself to the murderous jaws of its devouring foes.
Aphis there is no "worm-like stage" of development.
Professor Huxley's paper on the organic reproduction of Aphis is in the "Trans.
Pierre Huber declares that the aphis is the milch-cow of the ant; and adds, "Who would have supposed that the ants were a pastoral people?
I have since learned that the fact of the ant and the aphis being constantly together is well known; and further, that a sweet juice exudes from the aphis, on which the ant feeds.
There was not much bloom to begin with; then what bloom there was has set but badly; and now my most promising trees are overrun with aphis and with ants.
They seem to be most excellent friends, and the more ants there are the more the leaves curl up, and the more the aphis seems to thrive.
So long as the hop plant maintains its health the aphis is comparatively harmless, for the plant is then able to elaborate to the full the bitter principle which is its natural protection.
The same position is selected by the aphis of the rose, the bean, and every plant or tree subject to aphis attack--it is the undeveloped and therefore unprotected part which is chosen.
Will it be necessary to use measures to exterminate the woolly aphis in the old roots or their places in the ground before planting new trees in the places of the removed trees?
The apple twig which you send is infested with the eggs of the leaf aphis or leaf louse.
It is not necessary to undertake to kill aphis in the ground when you are planting apple trees on resistant roots.
Aphis lanigera=, now called Eriosoma, or the Woolly Aphis, was first described in 1801 as infesting the apple trees in Germany.
Aphis persicae=, or the Peach Tree-louse, punctures the leaves of this plant, and Dr.
Aphis prunifoliae=, or the Plum Leaf-louse, is black, with pale green abdomen.
They say aphis doesn't come on a plant with healthy sap," Ethel Blue contributed to this talk, "so the thing to do is to make these plants so healthy that the animals drop off starved.
They even learned to kill the little soft white creature called aphis by putting under the plant a pan of hot coals with tobacco thrown on them.
The Hop Aphis (Aphis humuli) lives upon the hop, and its abundance or scarcity is a most important matter to the hop-growers in this country.
One of the most destructive insects of the whole family is the Vine Aphis (Phylloxera vastatrix), which has committed terrible ravages at various times in most of the vine-growing districts on the Continent.
For some years the lime-tree aphishas seriously attacked the lime-trees of the public promenades of Paris.
He very soon made some other experiments on the aphis of the elder-tree, so as to assure himself if the generations of plant-lice, reared successively in solitude, preserved the same property of procreating without copulation.
But the ant has sense enough to treat the aphis as we treat our cows.
After feasting on this, the ant will pass to another little aphis and treat it in the same manner for another drop.
A little insect named an aphisis found on the leaf of most every plant.
But the ant has sense enough to keep the aphis for a supply of honey-dew instead of killing it as the lady-bird does.
The hop-wash of soft soap and quassia, so effective against aphis attack, is of little avail in the case of red spider.
It is like the larvæ of the dobson, the aphis lion, and the ant lion in that respect.
Illustration] When an egg hatches the young aphis lion drops down to the leaf and runs about like a ravening lion seeking some living thing to devour.
Yes, that is the way the larva of the aphis lion and of the ant lion made their cocoons.
The larva of the aphis lion has no distinct thorax.
The woolly aphis injures the roots of our fruit trees; the trunk and limb borers, the peach tree borer, the apple borer, all stand ready to assail the life of the entire tree.
In addition to these insects that attack special plants, all vegetables are preyed on by the grub-worm, the cutworm, the aphis and various tiny hoppers.
These are the greenfly or aphis insects which do so much harm in our gardens and fields, plunging their beaks into the tender shoots and fresh green leaves of the plants, and sucking up their sap unceasingly.
The fact is that both as grubs and as perfect insects they live upon the green blight, or greenfly, an aphis which is terribly mischievous in fields and gardens, and destroy it in thousands of thousands.
Its other self is the Aphis Lion, a wingless but very active creature which hunts for plant lice and when it finds one punctures it with its mandibles, raises it in the air and lets the blood trickle down into its mouth.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "aphis" in a variety of sentences. We hope that you will now be able to make sentences using this word.
