Search - Local Environmental Observer (LEO) Network

	Infestation	69
	Insects	44
	Plants / Kelp	38
	Unusual Size / Abundance	14
	Unusual Range / Sighting	13
	Economic Impact	12
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	Death / Die-off / Decline	9
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	Ocean / Sea	4
	Extreme Precipitation	3
	Invertebrates	3
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	Permafrost Change	2
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Tree Rotten or Infested?

A Beautiful Menace: Invasive Orange Hawkweed Spreads Through Southeast Alaska

A warming island's mice are breeding out of control and eating seabirds. An extermination is planned

Invasive Elodea in Chena Slough

Something is eating salmonberry leaves

Scientists say Tongass trees could bounce back from budworm infestation

Fireweed blooms hindered by foam?

Invasive Elodea in Harding Lake

Mouse Infestation “Unlike Anything” Exterminator Has Seen

Southeast Alaska’s budworm infestation is still going, and they seem to be moving on to spruce trees

Infestation of caterpillars

Spittle bug widespread in Clare, Ireland

Tent caterpillar infestation returns to Castle Valley

Beetle-killed trees raise safety concerns at Kenai Peninsula campgrounds

Jellyfish attack nuclear power plant

Wild pigs invade national park

The wall lizard invasion of Vancouver Island

Spittlebugs galore in Sand Lake area

Changes in fish size and parasite load of Kasilof sockeye salmon (Oncorhynchus nerka)

Caterpillars on Kesugi Ridge

Maine Has a Dangerous, Small, and Very Itchy Problem

Lymantria dispar dispar outbreak

Mouse Plague 'For every one that died, 10 more were coming in for the funeral' — agony of the plague that came to stay

Goldfish invasion of Hamilton Harbour

Second year of Hemlock Looper Moth (Lambdina fiscellaria) outbreak returns to North Vancouver in larger numbers

Eastern Ontario in grip of worst Gypsy moth outbreak in 30 years

Eastern Ontario in grip of worst Gypsy moth outbreak in 30 years

Emerald ash borer keeping some GRCA properties closed

Mysterious Holes in Leaves

Orangeville area trees swarming with invasive caterpillars

Increasing catch of spruce bark beetles

Record-breaking heatwave in Siberia

Africa's Huge Locust Swarms Are Growing at the Worst Time

Kenya suffers worst locust infestation in 70 years as millions of insects swarm farmland

Outbreak of tree-killing, allergy-inducing moths

Nepal is reeling from an unprecedented dengue outbreak

An invasive algae is threatening the Strait of Gibraltar’s fishing grounds

Outbreak of hemlock looper moth hits North Shore, Metro watersheds

Moth population takes flight in North Vancouver

Mass "Ballooning" Spider Event Responsible for Unusual Webs on Vegetation

Detectan presencia del 'Pez Diablo' en Sinaloa; una amenaza para la pesca y los ecosistemas

Wasilla store contends with ‘large-scale’ rodent problem

Late Birch Leaf Edge Miner Damage

Spruce Bark Beetle and Wood Boring Insects

Grasshopper invasion of Las Vegas may last weeks

Unusual Rusty Tussock Caterpillar (Orgyia antiqua)

Rusty tussock moths invade Seward Peninsula

Invasive poison hemlock a growing concern on Vancouver Island

Rusty Tussock Moth (Orgyia antiqua) Caterpillars in Nome

Dead Ash Trees Across Western New York State

Trees Devastated by Spruce Bark Beetles (Dendroctonus rufipennis)

Insects feast on willows after unusually warm, dry spring

Northern B.C. lake closed to fishing due to infestation of invasive goldfish

Invasive elodea prompts closure of Susitna Valley lakes

Sea Lice Plagues Return and Threat to Wild Salmon Increases

Southcentral Alaska’s spruce bark beetle infestation is spreading in Anchorage. There’s only one defense.

Rat infestation plagues Toronto neighbourhood

Roundheaded Wood Borer

The changing nature of Canada's forest supply as fires, bugs, and climate bite

Ecological collapse of Toronto's ravine system has begun, researcher says

Flying Ants Invade Moscow

Mountain pine beetle takes over Jasper National Park forests

Caterpillar Infestation

Bullfrogs threaten B.C. ecosystems

Tent Caterpillar Infestation

Spruce beetles’ expansion into Denali National Park poses questions about forest changes

Red Lily Beetle (Lilioceris lilii) settles in Edmonton, Alberta

Seeing brown birch leaves? It’s not necessarily a sign of fall. Blame leaf-munching larvae

Shellfish growers in Northwest’s oyster capital want ‘blitz’ against invasive green crabs