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Dibotryon morbosum or Apiosporina morbosa is a plant pathogen, which is the causal agent of black knot. [1] [2] It affects members of the Prunus genus such as; cherry, plum, apricot, and chokecherry trees in North America. The disease produces rough, black growths that encircle and kill the infested parts, and provide habitat for insects.
Canopy of D. aromatica at the Forest Research Institute Malaysia displaying crown shyness Trees at Plaza San Martín (Buenos Aires), Argentina. Crown shyness (also canopy disengagement, [1] canopy shyness, [2] or inter-crown spacing [3]) is a phenomenon observed in some tree species, in which the crowns of fully stocked trees do not touch each other, forming a canopy with channel-like gaps.
Native Americans used wood for small scale fires to clear brush from in between the trees of a forest in order to limit the possibility of an uncontrolled forest fire. [60] Map of North American fire scar network. Selective thinning allows for old thin trees to be replaced by more pyrophytic plants or plants that benefit from fire.
The act of decorating Christmas trees has its roots in the Germanic history of setting up "paradise trees." And once the British Queen and Prince had their extravagant Christmas tree showcased ...
Ziziphus mauritiana, also known as Indian jujube, [2] Indian plum, [2] Chinese date, [2] Chinee apple, [2] ber [2] and dunks [2] is a tropical fruit tree species belonging to the family Rhamnaceae. It is often confused with the closely related Chinese jujube ( Z. jujuba ), but whereas Z. jujuba prefers temperate climates, Z. mauritiana is ...
Although figures vary wildly, by some estimates, 475 million vertebrate animals are killed by vehicles every year in the South American country, which is home to the world’s fourth biggest road ...
A burl (American English) or burr (British English) is a tree growth in which the grain has grown in a deformed manner. It is commonly found in the form of a rounded outgrowth on a tree trunk or branch that is filled with small knots from dormant buds. Burl formation is typically a result of some form of stress such as an injury or a viral or ...
The National Park Service wants to replant sequoia groves in Sequoia and Kings Canyon National Parks, where wildfires in 2020 and 2021 inflicted lasting damage on the iconic sequoia forests.