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A chestnut tree that has been felled, with blight on its inner bark and trunk. The fungus enters through wounds on susceptible trees and grows in and beneath the bark, eventually killing the cambium all the way around the twig, branch, or trunk. [31] The first symptom of C. parasitica infection is a
Girdling. Girdling, also called ring-barking, is the circumferential removal or injury of the bark (consisting of cork cambium or "phellogen", phloem, cambium and sometimes also the xylem) of a branch or trunk of a woody plant. Girdling prevents the tree from sending nutrients from its foliage to its roots, resulting in the death of the tree ...
water hemlock, cowbane, wild carrot, snakeweed, poison parsnip, false parsley, children's bane, death-of-man. Apiaceae. The root, when freshly pulled out of the ground, is extremely poisonous and contains cicutoxin, a central nervous system stimulant that induces seizures. [citation needed]
Tree hollow. A naturally formed tree hollow at the base of the tree. A tree hollow or tree hole is a semi-enclosed cavity which has naturally formed in the trunk or branch of a tree. They are found mainly in old trees, whether living or not. Hollows form in many species of trees, and are a prominent feature of natural forests and woodlands, and ...
Rotenone is an odorless, colorless, crystalline isoflavone. It occurs naturally in the seeds and stems of several plants, such as the jicama vine, and in the roots of several other members of the Fabaceae. It was the first-described member of the family of chemical compounds known as rotenoids.
Atropa belladonna, commonly known as belladonna or deadly nightshade, is a toxic perennial herbaceous plant in the nightshade family Solanaceae, [1] which also includes tomatoes, potatoes and aubergine (eggplant). It is native to Europe and Western Asia, including Turkey. Its distribution extends from Ireland in the west to western Ukraine and ...
Turpentine (which is also called spirit of turpentine, oil of turpentine, terebenthine, terebenthene, terebinthine and, colloquially, turps) [2] is a fluid obtained by the distillation of resin harvested from living trees, mainly pines. Principally used as a specialized solvent, it is also a source of material for organic syntheses.
Peppermint. repels aphids, cabbage looper, flea beetles, squash bugs, whiteflies, and the Small White [3] Petunias. repel aphids, tomato hornworm, asparagus beetles, leafhoppers, [2] and squash bugs [3] Pitcher plants. traps and ingests insects. Radish. repels cabbage maggot and cucumber beetles [3] Rosemary.