I am an organic gardener and do not use pesticides. From this point of view, this is what needs to be done. If there is a large infection of aphids, I will first cut off this part of the plant, if possible. As soon as you see a few people, do this, they usually do not go away on their own. To make your garden the most beautiful, you need to get rid of insects, see here
Then I have a high-pressure sprayer that I acquired, and then I will wash the aphid area after cutting off areas of severe infection. It attaches to the hose and releases a jet of water under high pressure, which knocks down and kills aphids.
The highest oxygen productivity was observed in oak and larch (6.7 t / ha), in pine and spruce (4.8-5.9 t / ha). I challenge everyone to plant these trees in order to save our planet, let's say diamonds in the field of oxygen production. Also, when the trees become old, we will be forced to cut them, especially since they will go perfectly for firewood. For those who do not have a saw and want to join, keep the site https://polesawguide.com/reviews/best-gas-pole-saws/