The best way to solve the problem with insect pests is a comprehensive approach. That is, when, along with tree pruning, spraying and whitewashing of trunks, trapping belts are also used.
There is no need to tell what this product is and how to use it. There is a more important point.
There is no need to wait until the spring warmth awakens the dormant pests in the cracks of the bark or the wintering pests in the soil.
They feel the approach of warmth more acutely, and therefore any delay makes protective measures ineffective. Gardening can and should begin as soon as the snow melts. Many summer residents even carry out sanitary pruning at the end of winter if the temperature does not fall below -5 degrees.
Next, you can whitewash the trunks with a special garden paint, and at the first hint of spring warming, place trapping belts.
Removing them after flowering is another mistake gardeners make. You can renew the belt, but you can remove it completely only after harvesting, if it is cherry, apricot and other stone fruits.
On apple trees, pears and other pome trees and shrubs, the belts can be left on until late autumn.
The condition of the belt should be inspected once every 2-3 days. Depending on the design and execution of the belt or trap, beneficial insects should be changed or released.
It is worth remembering that in addition to belts, there are special traps for flying insects.