Any Tree

Does anybody know what these little green growths on the leaves are? They become red when they mature.

5 thoughts on “Any Tree”

  1. // Leaf galls on plants are usually the result of mites and other sucking insects that make their homes under the plant tissue. Their feeding activities cause some galls, while chemicals secreted during egg growth in saliva or even excretions, may cause the changes to plant tissue.

    Leaf galls on plants might be green and match the plant material. They might also be bright pink or red and resemble large pimples.

    Read more at Gardening Know How: Leaf Gall Identification: Learn About Preventing And Treating Leaf Gall On Plants https://www.gardeningknowhow.com/plant-problems/environmental/treating-leaf-gall-on-plants.htm

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  2. Mites. The galls are purely cosmetic damage. They don’t kill or seriously damage the tree. They feed a little bit on the leaves, and that causes the galls. It’s far more benign than a lot of people make it out to be — people don’t like them because they don’t like how “ugly” it looks, so they treat them regardless of whether there’s any real damage to the plant itself.

    On the positive side: you don’t need to explain to Klara not to bring the red bumps into the house — by the time the galls have formed on the leaves, the mites have already left. They’re not the kind of mites that can infest homes or harm humans or animals. They’re a species that feeds specifically on parts of the leaves of that species of tree.

    You’ll notice that they’ll only form up to a certain height in the tree. They overwinter around the roots of the tree, then climb up in the spring and summer. But they can only climb up so high, and so you’ll see some galls on lower branches but not on the foliage at the very top.

    Source: my dad, who is a greenhouse manager (I can ask him more questions if you like, since it’s my day off and he’s right here).

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  3. For a moment, I honestly wondered if trees had gotten the coronavirus too.

    2020 is the worst year of my life so far.

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