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Updated: June 27, 2025


The scaly aphis or bark-louse attacks weak, feeble-growing trees, and can usually be removed by scrubbing the bark with the preparation given above. In our region and in many localities the apple-tree borer is a very formidable pest, often destroying a young tree before its presence is known. I once found a young tree in a distant part of my place that I could push over with my finger.

"If pestilence stalk through the land, ye say, This is God's doing. Is it not also His doing, when an aphis creepeth on a rosebud?" Martin F. Tupper. Earl Hubert was far too busy a man to waste his time in lounging on velvet settles and exchanging sallies of wit with the ladies of his household.

Such trees would give you practically a uniform lot of trees in your orchard while planting seedlings and grafting afterward would give you very irregular and for the most part unsatisfactory results providing you get any seeds to grow at all in the open ground, which is doubtful. Resistant Apple Roots. A few apple trees which are almost dead from ravages of the woolly aphis.

Other insects, such as the Hessian fly, the green-bug or spring grain aphis, the army-worm and various species of grasshoppers are killed by tiny parasitic insects whose eggs are laid in the bodies of the larger insects, but which, after being hatched, feed on them. To these natural methods of control man has added others. Cultivation is one of these methods.

In the light of the studies of Von Baer, of Lamarck and Darwin, should we be content to stop here, or does this ideal archetype become endowed with life and have a definite existence, becoming the ancestral form of all insects, the prototype which gave birth to the hundreds of thousands of insect forms which are now spread over our globe, just as we see daily happens where a single aphis may become the progenitor of a million offspring clustering on the same tree?

A good thorough spraying with lime-sulphur might, however, get rid of many of them and would be good for the trees otherwise diluting according to condition of tree growth. The chief campaign against the leaf aphis, however, must be made early in the growing season, just as these pests are beginning to hatch out and to accumulate under the leaves of the new growth.

They would see the frogs active enough then, creeping with wondrous dexterity among the leaves, and springing like a green flash upon their prey. Naturally, therefore, they do not catch thrips or mealy-bug or aphis; these are too small game for the midnight sports-man. Wood-lice, centipedes, above all, cockroaches, those hideous and deadly foes of the orchid, are their victims.

It is a small, greenish, and very active worm, who, if he "smells a rat," will drop out of his web, and descend to the ground in double-quick time. I know of no other plan, than to catch him and crush his web between the finger and thumb. The aphis, or plant louse, often covers the young shoots of the vine, sucking its juices.

If you can, will you kindly tell me what the insects are an it, and what I had better do for them? The apple twig which you send is infested with the eggs of the leaf aphis or leaf louse. These eggs are very difficult to kill.

But we, who have learned something about these aphides , know that it comes from their little green bodies, and that the ants often carry the insects off to their nests, where they feed and 'tend them for the sake of this very juice. The aphis that infests the willow is the largest of the tribe, and the branches and stems of the tree are often blackened by the honey-dew that falls upon them."

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