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Updated: May 27, 2025
Indeed, after all that we have already seen upon a single bramble-bush, would it be taking too much license with fact to add one more pictorial chronicle an exhilarated and promiscuous group of butterflies, ants, hornets, wasps, and flies uniting in "a health to the jolly aphis"?
This organ is common to the aphis with all the other bugs and plant-lice. These tubes are not found in quite all species of aphides, but they are very common among the class, and they form by far the most conspicuous and interesting organs in all those aphides which do possess them.
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.
Flowers would not Blow; daffodils perished like criminals in their cone demned caps, without their petals ever seeing daylight; roses were disfigured with monstrous protrusions through their very centres, something that looked like a second bud pushing through the middle of the corolla; lettuces and cabbages would not head; radishes knotted themselves until they looked like centenerians' fingers; and on every stem, on every leaf, and both sides of it, and at the root of everything that dew, was a professional specialist in the shape of grub, caterpillar, aphis, or other expert, whose business it was to devour that particular part, and help order the whole attempt at vegetation.
"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." "This new development is going to be a great comfort to me if it keeps on," Mrs. Emerson confessed to her daughter humorously. "I shall encourage the girls to use my plants for instruction whenever they want to."
The best way to kill the woolly aphis on the roots is to remove the earth from around the tree to a distance of one or two feet, according to the size of the tree, digging away a few inches of the surface soil, Then soak the soil around the tree with kerosene emulsion, properly made, of 15 per cent strength, and replace the earth. Be sure you get a good emulsion, for free oil is dangerous.
Afterwards, I allowed an ant to visit them, and it immediately seemed, by its eager way of running about to be well aware what a rich flock it had discovered; it then began to play with its antennae on the abdomen first of one aphis and then of another; and each, as soon as it felt the antennae, immediately lifted up its abdomen and excreted a limpid drop of sweet juice, which was eagerly devoured by the ant.
The latter is one of the numerous species of aphis which begins its attack in the winged state, and after producing wingless green lice in abundance which further increase by the process known as "gemmation" reappears with wings in the final generation of the lice, and hibernates in readiness for its visitation in the spring next year.
Their continued attacks cause the leaves to wither and blight. The grain Aphis, in certain years, desolates our wheat fields. We have seen the heads black with these terrible pests. They pierce the grain, extract the sap, causing it to shrink and lose the greater part of its bulk. It is a most insidious and difficult foe to overcome.
Other insects that destroy garden vegetables are the well-known green cabbage-worm, the harlequin cabbage-bug, the cabbage hairworm, the asparagus-beetle, the squash-bug, the squash-vine borer, the striped cucumber or melon beetle, the melon aphis, the corn boll-worm, the cornstalk borer and many others.
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