Processing tree trunks

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Autumn – it’s time to prepare trees for winter

The garden season is over. There was a lot of joy, but, probably, everyone can remember grief. Often such a chagrin for a gardener is a diseased plant. We must take care now that these griefs should be less next summer. The end of September, October is the best time for this.

Insect pests hibernate near the places where they developed in summer, most often directly under a tree or bush in the upper layers of the soil or under foliage. So, for example, the apple flower beetle and the apple sawfly hibernate in the soil at a depth of 5-10 cm in the near-trunk circle of a fruit tree, the sucker lays eggs on the branches and in the soil of the beds of crops that are pleasant to her, the psyllid beetles settle in the upper layers of the soil and under the plant litter. If we give pests the opportunity to successfully survive the winter, in early spring they will come out of their hiding places and climb onto our plants to feed and breed.

Should tree trunks be processed in autumn?

To dig up near-trunk circles under trees or not is a rather controversial issue. If we take into account the plant itself, forgetting about pests, digging is great harm. Indeed, in the surface layers of the soil there are the most productive small roots of the plant, which we constantly injure by annual digging. But if you listen to a lecture on protecting plants from diseases and pests, they will tell you to dig it up by all means.

There are several exits. You can dig, but only very shallow, about 10 centimeters, turning the layers over, but not breaking them. Processing should be in October, when all the pests have already settled down for the winter at the right depth, and we will pull them to the surface, where they cannot survive the winter cold. Do not forget that before digging, it is imperative to remove foliage from under the plant, otherwise you will introduce new pests into the soil with it.

It is possible to plant the entire near-trunk circle with plants repelling pests, for example, marigolds (tagetes) since spring. They will bloom weakly there, and on the north side they may not bloom at all, but pests do not really like the greenery of these plants. In autumn, it is better not to pull them out, let them rot under the tree. Collect fallen leaves from the surface with a rake and leave for the winter without digging.

Another processing option: closer to the fall, mulch the trunk circle with a film. Tie the film tightly around the trunk so that insects crawling under it do not get to the ground. Raise the edges of the film on the border of the near-stem circle. Often spray the foliage and carrion accumulated on the film with an insecticide, and remove everything before winter.

What other care do trees need in the fall?

In addition to all these activities, each gardener should make it a rule in October to remove foliage and carrion from under the trees and treat the stem, bases of skeletal branches and the trunk circle with an insecticide (Inta-Vir, Decis, or one of the pyrethroid preparations, or Fury’s new preparations , Kinmiks). And 5-7 days after spraying with an insecticide (or before it), engage in the neutralization of pathogens of fungal plant diseases (scab, powdery mildew, phytophthora, various rots). To do this, also sprinkle the soil, trunk and lower branches with one of the fungicides. The most common of them is a 1% solution of Bordeaux liquid, or a solution of copper sulphate, or copper oxychloride, or Oksihom-80. Now a new fungicide Fundazol has appeared on sale, which has not only a preventive, but also a therapeutic effect.

All this was said in relation to fruit trees and shrubs. But do not forget about vegetable ridges, they also need autumn protection. Before frosts, dig up the soil on a shovel bayonet without breaking the layers, and sprinkle it with an insecticide, and after a few days with a fungicide in the same way as the trunk circles of trees. In the garden, too, you should not leave any plant residues after harvesting, send everything to the compost heap, there, when overheating, a high temperature rises, which will disinfect all parasites.

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