Botany

An unmodified, open-pollinated American chestnut bur grows on a tree at the State University of New York's College of Environmental Science & Forestry Lafayette Road Experiment Station in Syracuse, N.Y., Monday, Sept. 30, 2019. The ESF American Chestnut Research & Restoration Project researchers have been able to add a gene to American chestnuts that give the trees resistance to a blight that decimated the trees in the 20th century. (AP Photo/Adrian Kraus)
November 06, 2019 - 4:22 pm
SYRACUSE, N.Y. (AP) — Chestnuts harvested from high branches on a chilly fall morning look typical: they're marble sized, russet colored and nestled in prickly burs. But many are like no other nuts in nature. In a feat of genetic engineering, about half the chestnuts collected at this college...
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This 2005 photo provided by Bethany Bradley shows cheatgrass, at right, invading shrubs, left, near Lovelock, Nev. A new study finds that for much of the United States, invasive grass species, such as cheatgrass, are making wildfires more frequent, especially in fire-prone California. (Bethany Bradley/University of Massachusetts via AP)
November 04, 2019 - 3:06 pm
WASHINGTON (AP) — For much of the United States, invasive grass species are making wildfires more frequent, especially in fire-prone California, a new study finds. Twelve non-native species act as "little arsonist grasses," said study co-author Bethany Bradley, a University of Massachusetts...
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This 2005 photo provided by Bethany Bradley shows cheatgrass, at right, invading shrubs, left, near Lovelock, Nev. A new study finds that for much of the United States, invasive grass species, such as cheatgrass, are making wildfires more frequent, especially in fire-prone California. (Bethany Bradley/University of Massachusetts via AP)
November 04, 2019 - 3:04 pm
WASHINGTON (AP) — A new study finds that for much of the United States, invasive grass species are making wildfires more frequent, especially in fire-prone California. Study co-author Bethany Bradley of the University of Massachusetts says in a way a dozen non-native grass species act like little...
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In this undated handout photo provided by International Union for Conservation of Nature, a critically endangered Sorbus rhodanthera is seen in Czech Republic. An international conservation group is warning that more than half of the trees in Europe that exist nowhere else in the world are threatened with extinction. The International Union for the Conservation of Nature says in their latest assessment of Europe’s biodiversity that 58% of the 454 trees species native to the continent are threatened, and 15% are “critically endangered” - one step away from extinction. (Martin Lepsi/IUCN via AP)
September 27, 2019 - 4:03 pm
GENEVA (AP) — An international conservation group is warning that more than half of the European tree species that exist nowhere else in the world are threatened with extinction. The International Union for the Conservation of Nature said in a new report Friday that 58% of Europe's 265 endemic...
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September 27, 2019 - 6:32 am
GENEVA (AP) — An international conservation group is warning that more than half of the trees in Europe that exist nowhere else in the world are threatened with extinction. The International Union for the Conservation of Nature says in their latest assessment of Europe's biodiversity that 58% of...
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California citrus growers, packers and researchers gather for the opening of a new secure lab dedicated to the search for a cure for a deadly citrus-killing disease in Riverside, Calif., Thursday, Sept. 26, 2019. Growers hope the lab will speed up the search for a cure to the disease, which is spread by a tiny insect and has ravaged groves in Florida and abroad. The lab will be run through a partnership with University of California, Riverside. (AP Photo/Amy Taxin)
September 26, 2019 - 6:09 pm
RIVERSIDE, Calif. (AP) — In a lab southeast of Los Angeles, researchers are opening a new front in the yearslong battle against a tiny pest that has wreaked havoc on citrus groves around the world. California citrus growers and packers and the University of California, Riverside on Thursday marked...
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September 26, 2019 - 4:03 pm
RIVERSIDE, Calif. (AP) — In a lab southeast of Los Angeles, researchers are opening a new front in the yearslong battle against a tiny pest that has wreaked havoc on citrus groves around the world. California citrus growers and packers and the University of California, Riverside on Thursday marked...
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Pope Francis holds his skull cap in the Soamandrakizay esplanade as he celebrates a vigil with youth in Antananarivo, Madagascar, Saturday, Sept. 7, 2019. Francis is in Madagascar for the second leg of his weeklong trip to Africa. (AP Photo/Alessandra Tarantino)
September 07, 2019 - 1:25 pm
ANTANARIVO, Madagascar (AP) — Pope Francis denounced the illegal logging and exploitation of Madagascar's unique natural resources on Saturday as he opened a visit to the Indian Ocean nation by urging the government to fight the corruption that is ravaging the island's ecosystem and keeping its...
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Pope Francis and Madagascan President Andry Rajoelina, right, arrive at the Ceremony Palace in Antananarivo, Madagascar, Saturday, Sept. 7, 2019. Francis is in Madagascar for the second leg of his weeklong trip to Africa. (AP Photo/Alexander Joe)
September 07, 2019 - 5:55 am
ANTANARIVO, Madagascar (AP) — Pope Francis denounced the illegal logging and exploitation of Madagascar's unique natural resources on Saturday as he opened a visit to the Indian Ocean nation with a plea for the government to fight the corruption that is ravaging the island's environment and keeping...
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Pope Francis talks with Madagascar President Andry Rajoelina during his meeting with authorities at the Ceremony Palace in Antananarivo, Madagascar, Saturday, Sept. 7, 2019. Francis is in Madagascar for the second leg of his weeklong trip to Africa.(AP Photo/Alessandra Tarantino)
September 07, 2019 - 4:20 am
ANTANARIVO, Madagascar (AP) — Pope Francis denounced the illegal logging and exploitation of Madagascar's unique natural resources on Saturday as he opened a visit to the Indian Ocean nation with a plea for the government to fight the corruption that is ravaging the island's environment and keeping...
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