Aphid is a small malicious creature from the order of half-winged, which feeds on the juice of tree leaves.
Aphid invasion can not only deprive gardeners of the crop, but also completely destroy the tree. That is why the question of how to get rid of
aphids on trees, worries every gardener. Methods may vary. You need to choose not only the most effective, but those that bring a minimum of harm to the human body.
How to get rid of aphids on trees? The first method: old, but harmless
Even with a strong infection of the aphid garden, the trees are not immediately affected by the whole. Therefore, in small areas there is an opportunity to do without the use of chemicals. To begin with, you can protect the tree from the invasion of ants, because it is they who breed aphids. Ants are very fond of the sweet liquid that these insects secrete. The trunk of the tree can be wrapped with foil from the bottom, leaving a "skirt" of a few centimeters. Ants are bad gymnasts, so they will not overcome such a barrier. If the tree was not protected in time, and the aphid still began to appear, then you can tear off the affected leaves with your hands and destroy them. This method requires constant effort, but it is absolutely safe.
How to get rid of aphids on trees? The second method, also harmless
Aphids can breed only on trees with lush green leaves: they feed on sap. Such trees can grow exclusively on rich nitrogenous soils. If you slightly change the composition of the soil, the leaves will not be so juicy, the aphid itself will leave the tree. You can, of course, scatter bought chemicals under the trees such as potassium sulfur or potassium chloride, but they will later fall into the fruit, and then into the human body. Therefore, you can do something else: scatter ordinary ash under the trees. The measure here is simple: the more aphids, the more ash. In order for the aphid to leave faster, you can spray garden trees with a solution of ash . Aphids cannot tolerate ash, so some of the insects will die, some will simply leave the site. Before the procedure, the foliage should be moistened well. Such spraying of trees is especially effective in places of large concentrations of insects. You can also treat the trees with infusion of tobacco, laundry soap and water. Aphids do not like the infusion of bitter pepper, onion husks, garlic and dandelions.
How to get rid of aphids on trees? The third method, the most common, but not the most useful
Most gardeners use chemical methods to control aphids. As mentioned above, you can change the composition of the soil using potassium sulfur or potassium chloride. They must be used very carefully: the compounds are poisonous. In addition, part of them is absorbed by the fruits, which does not benefit the person. The rules for using such formulations should be written on the packaging. You can spray trees with chemicals. Often used are "Karbofos", "Actellika", "Karate", "Inta-vir". The composition of all these chemicals includes pyrethrins, which paralyze the nervous system of insects, leading to their death. But all these chemicals are absorbed by the fruits, which does not benefit the person.