Spraying fruit trees in autumn
In September-October, the foliage on the garden trees begins to slowly turn yellow - the plants are preparing for the arrival of winter cold. The approaching winter is also felt by garden pests, which are taken to actively seek shelter for themselves. And if you miss the moment, then next year the voracious caterpillars will quickly find their way back to their favorite places and begin to devour young buds and tender leaves of plants.
When to spray trees in autumn
Therefore, autumn spraying of trees in the garden is carried out immediately after the massive leaf fall. At the same time, this matter should not be postponed until later: when the temperature drops below +5 ... 6 degrees, the effect of spraying decreases sharply, because by this time the pests have already managed to climb deep into the soil or into the bark.
But you should not wait until the trees completely lose their foliage, 80-90% is enough. In this case, a sufficient amount of insecticidal solution will fall on the branches and trunk.
If the infectious background is weak, then surface treatment of trees can be dispensed with. But when there are a lot of pests, it makes sense to carry out washing spraying. It is done in such a way as to thoroughly moisten the trunk, all large and small branches and the ground under the crown. The trickles of the solution should also penetrate the cracks and other holes in the bark.
The optimal weather for spraying the garden is dry and calm with a temperature of +10 degrees. The best time is early morning or sunset hours.
Preparations for the autumn spraying of the garden
In order to clean the garden from pests in the fall, it can be sprayed with a 10% urea solution. After a week and a half, it is advisable to re-treat with a solution of copper sulfate with the addition of slaked lime. This composition will destroy not only caterpillars and beetles, but also pathogens of many diseases.
To prepare it, 300 grams of copper sulfate is dissolved in three liters of warm water, and 400 grams of lime is diluted in 10-12 liters of water. After that, the resulting solutions are combined and thoroughly mixed again.
Consumption rates of drugs
Before preparing the solution, it is important to estimate how much mixture you will approximately need. To do this, you can focus on the following average consumption rates per plant without leaves:
- for one berry bush - from 0.1 to 1.3 liters;
- for one young tree - 0.5 liters;
- for one adult large tree - 5 liters.
How to spray trees from pests
For autumn-spring processing of horticultural crops, it is more convenient to buy an 8-10 liter sprayer, because most store-bought preparations are designed for dilution in just such a volume of liquid. During the operation itself, the liquid in the sprayers must be shaken periodically (every minute or two) so that it remains sufficiently homogeneous.
To protect perennial plantations located near trees (garden strawberries, flowers, vegetables), they need to be covered with a film. You should also take care of your own equipment: use a protective raincoat, special goggles and a respirator. And, of course, you must follow all the recommendations given in the instructions for the drug used.
