单词 | adelgid |
例句 | In just seven years, the woolly adelgid has fatally damaged more than 90 percent of the park’s hemlocks. A Walk in the Woods 1997-11-01T00:00:00Z Scientists say bugs such as the hemlock woolly adelgid and emerald ash borer, both native to Asia, are driving some tree species toward extinction and are causing billions of dollars a year in damage. Scientists warn that speck-size insects are on track to damage most U.S. forests 2016-12-07T05:00:00Z The hemlock woolly adelgid -- an invasive insect that was introduced to North America 70 years ago and has spread along the East Coast -- can kill a hemlock tree in as little as four years. Canopy gaps help eastern hemlock outlast invasive insect 2023-09-18T04:00:00Z Similarly, millions of hemlock trees in the eastern United States are succumbing to the woolly hemlock adelgid, which likely arrived on Japanese ornamental plants. Cargo, with a side of hornets, flies, and crabs 2022-02-14T05:00:00Z Biocontrol researchers are now pinning hope on two tiny silverflies, both native to the western United States, to control the summer adelgid generation. To save the hemlock, scientists turn to genetics and natural predators 2020-07-31T04:00:00Z The hemlock woolly adelgid is a bug that attacks hemlock trees, native to this area for thousands of years. Sultry Nights and Magnolia Trees: New York City Is Now Subtropical 2020-07-24T04:00:00Z The new rules are designed to halt the spread of the emerald ash borer and hemlock woolly adelgid. Maine broadens restrictions to curb spread of forest pests 2020-03-19T04:00:00Z "The canopy gaps give the trees better access to resources like water and nutrients that help them deal with the adelgid," Jetton says. Canopy gaps help eastern hemlock outlast invasive insect 2023-09-18T04:00:00Z The emerald ash borer and wooly adelgid are also getting a leg up from climate change, which has warmed winters and allowed the insects to expand their North American range. Cargo, with a side of hornets, flies, and crabs 2022-02-14T05:00:00Z Rhea hopes that growing hemlocks in forest clearings and deploying beetles and flies will eventually allow trees to reach maturity and reproduce before the adelgid kills them. To save the hemlock, scientists turn to genetics and natural predators 2020-07-31T04:00:00Z Mild winters are unable to beat back invasive pests like the hemlock woolly adelgid, many of which will die off only at 4 or 5 degrees below zero. Opinion | Let It Snow 2020-03-07T05:00:00Z In the 1990s, investigators in British Columbia in Canada found that a black beetle named Laricobius nigrinus, about the size of a grain of rice, munches on adelgid eggs, larvae, and nymphs. Aphid-munching beetle could help save hemlock forests 2020-01-15T05:00:00Z "While it doesn't cause the adelgid population to decrease, it may be giving trees the ability to 'outgrow' the insect's impact, at least temporarily." Canopy gaps help eastern hemlock outlast invasive insect 2023-09-18T04:00:00Z Researchers also collected seeds of other plants including the parasitic piratebush and the Carolina hemlock, another tree threatened by a different adelgid, Sanders said. Missouri garden works to save popular Christmas tree 2019-12-23T05:00:00Z To Preisser, however, the ongoing struggle to establish sustainable adelgid predators population in the forest suggests biocontrol may be a dead end. To save the hemlock, scientists turn to genetics and natural predators 2020-07-31T04:00:00Z This year’s priority is detecting and controlling high-risk invasive species such as European frogbit, Japanese stiltgrass, giant hogweed and hemlock woolly adelgid. Michigan agencies offer $3.6M to fight invasive species 2019-07-10T04:00:00Z He’s also set to share information on steps the state is taking to address the spread of pests such as emerald ash borer, gypsy moth and hemlock woolly adelgid. Future of Maine’s oak trees on agenda of green expo 2019-01-20T05:00:00Z But in the eastern U.S., native hemlocks are succumbing to a Japanese insect called the hemlock woolly adelgid, which kills trees by sucking out their sap. First New Species of Temperate Conifer Tree Discovered in More Than a Decade 2018-01-30T05:00:00Z More than $850,000 will be divided among three projects that will survey, map and treat trees infested with hemlock woolly adelgid. Michigan awards grants for invasive species control projects 2018-01-19T05:00:00Z Then, starting in the 1970s, a tiny aphid-like insect known as hemlock woolly adelgid, originally from Japan, unleashed the tree version of a pandemic in American hemlock forests. To save the hemlock, scientists turn to genetics and natural predators 2020-07-31T04:00:00Z Hemlock trees infested with the woolly adelgid in New England eventually turn brown from the top down before succumbing to the bugs. Tiny insect devastating hemlock trees in Maine counties 2017-11-22T05:00:00Z Species covered will include the emerald ash borer, hemlock wooly adelgid and Asian longhorned beetle. Conservation experts want public to help with forest pests 2017-08-29T04:00:00Z Forest Service biologist, was studying Asian hemlocks’ genetics to understand why they can resist the adelgid when the Eastern hemlock can’t. First New Species of Temperate Conifer Tree Discovered in More Than a Decade 2018-01-30T05:00:00Z The state Department of Environmental Conservation says a small cluster of hemlock woolly adelgid was found on Prospect Mountain near Lake George. Hemlock pest found for first time in Adirondacks 2017-07-26T04:00:00Z One strategy involved looking for rare hemlocks that appeared to tolerate the adelgid. To save the hemlock, scientists turn to genetics and natural predators 2020-07-31T04:00:00Z Another priority is surveillance for tree-damaging infestations such as hemlock woolly adelgid, balsam woolly adelgid, thousand cankers disease and Asian longhorned beetle. Grants offered for projects to prevent species invasions 2017-05-03T04:00:00Z While the big oak is thriving, hemlocks throughout New England are dying because of woolly adelgid, a tiny, aphid-like pest native to Asia that is thriving in warmer winters and expanding its range. Seeing the forest for the trees: What one oak tells us about climate change 2017-04-13T04:00:00Z They are threatened by a warming climate and an invasive pest, the hemlock woolly adelgid. Researchers: hemlock trees in trouble as winters warm 2017-03-29T04:00:00Z Another problem is the hemlock woolly adelgid, an invasive insect that kills hemlock trees. Report: Insects, diseases pose threats to Michigan forests 2017-03-21T04:00:00Z Department director Jamie Clover Adams says if hemlock woolly adelgid were to become widely established in Michigan, it would cause severe losses across multiple industries, including timber products, nursery stock and tourism. Michigan agency considers quarantine of tree-harming pest 2016-12-23T05:00:00Z The pests include the Hemlock woolly adelgid, emerald ash borer and gypsy moth. Spread by trade and climate, bugs butcher America's forests 2016-12-06T05:00:00Z The bags exclude other insects — and the branches within are covered with adelgid, just as on eastern hemlocks. Seeing the forest for the trees: What one oak tells us about climate change 2017-04-13T04:00:00Z Agriculture commissioner Walt Whitcomb says the efforts will help with early detection of pests such as the Asian longhorned beetle, emerald ash borer, hemlock woolly adelgid, winter moth and others. Maine spreading invasive pest outreach to all 16 counties 2016-11-30T05:00:00Z “Cooperation between states dealing with the impacts of the hemlock woolly adelgid is essential to our efforts,” said Don Eggen, forest health manager with the Pennsylvania Department of Conservation and Natural Resources, in a statement. Patapsco Valley is proving ground for Maryland’s effort to restore hemlock forests 2016-05-04T04:00:00Z Pennsylvania’s forests are under threat: Coniferous eastern hemlock trees all across the state are suffering from an infestation of the parasitic woolly adelgid. Climate change means threat to species in Pennsylvania 2016-04-30T04:00:00Z The adelgid is native to China and Japan and is parthenogenetic, which means all individuals are female and offspring develop from unfertilized eggs. Biological predators attacking invasive species in Conn. 2015-07-18T04:00:00Z Yet here in the Northwest, western hemlocks live with adelgid. Seeing the forest for the trees: What one oak tells us about climate change 2017-04-13T04:00:00Z The June 13 training in Montpelier will be for volunteers interested in scouting their communities for three invasive insects- - the Asian long-horned beetle, emerald ash borer and hemlock woolly adelgid. Vermont to offer training to identify 3 invasive pests 2015-05-30T04:00:00Z The balsam woolly adelgid feeds on sap and weakens trees, eventually killing them. Michigan establishes quarantine to block insect 2014-07-01T04:00:00Z “In river corridors with steep hillsides, the mortality from adelgid is often very visible from the river or from where highways follow the river corridors,” he said. Climate change means threat to species in Pennsylvania 2016-04-30T04:00:00Z In Connecticut, the main biological control agent to date has been a beetle imported from Japan that is the woolly adelgid’s natural predator. Biological predators attacking invasive species in Conn. 2015-07-18T04:00:00Z That could offer hope for eastern hemlock, perhaps by introducing the same predatory beetles and flies that feast on adelgid here, new research shows. Seeing the forest for the trees: What one oak tells us about climate change 2017-04-13T04:00:00Z Another is the hemlock woolly adelgid, also from Asia. Ash Forests After Emerald Ash Borers Destroy Them 2014-06-30T04:00:00Z The quarantine announced Monday generally prohibits shipment of fir nursery stock and fir timber products into Michigan from states infested with balsam woolly adelgid. Michigan establishes quarantine to block insect 2014-07-01T04:00:00Z Native to Asia, the hemlock woolly adelgid is a small insect that threatens the health and sustainability of eastern hemlock in the eastern U.S. Climate change means threat to species in Pennsylvania 2016-04-30T04:00:00Z Insects Freeze to Death The branch of a hemlock at the Brooklyn Botanic Garden shows damage done by the hemlock woolly adelgid, an invasive species. The Week: Frozen Insects, Glowing Fish and a Futuristic Suit 2014-01-13T23:04:03Z “The Fraser fir is in peril, badly affected by this adelgid,” said Andrew Liebhold, a research entomologist for the U.S. A popular wild Christmas tree, Canaan fir, is imperiled because of a ravenous bug 2013-12-23T02:06:57Z In theory, that will provide the tree with at least some resistance to the adelgid and may even save it. Hemlock Extinction Looms over Tennessee Forests 2013-10-11T18:15:05.630Z But while federal agriculture officials struggle with adelgid and other established pests, emerging threats, like the citrus longhorned beetle, a wood-boring native of Asia, are presenting new headaches. Green Blog: Who Knows What Bugs Lurk in Imported Plants? 2012-04-16T10:00:35Z Unfortunately, Zygmunt said it’s economically unfeasible to treat a whole forest for woolly adelgid infestation. Climate change means threat to species in Pennsylvania 2016-04-30T04:00:00Z And in the East, warmer winters increase populations of woolly adelgid, an invasive insect pest originally from Asia that attacks hemlock forests. Warm U.S. Winter Could Spur Early Corn Planting and Tree-Killing Beetles 2012-03-16T16:15:34.290Z The balsam woolly adelgid is an uninvited guest in North America, but it’s been around so long that it seems like part of the family. A popular wild Christmas tree, Canaan fir, is imperiled because of a ravenous bug 2013-12-23T02:06:57Z The adelgid is a tiny, almost invisible insect — just 1.5 millimeters long — but it has a massive impact. Hemlock Extinction Looms over Tennessee Forests 2013-10-11T18:15:05.630Z The invasive hemlock wooly adelgid is turning eastern forests brown;scientists fear destructive new insect invaders will be introduced by imported backyard plants. Green Blog: Who Knows What Bugs Lurk in Imported Plants? 2012-04-16T10:00:35Z Instead, this group looked in depth at three poster bugs: the emerald ash borer, gypsy moth and hemlock woolly adelgid. Green Blog: The Toll From Tree-Boring Pests 2011-09-13T20:59:11Z And some pests are too small to detect, including the hemlock wooly adelgid, he added. Green Blog: Who Knows What Bugs Lurk in Imported Plants? 2012-04-16T10:00:35Z |
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