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Home / Invasive Species Resources

Invasive Species Resources

Provides access to all site resources (alphabetically), with the option to search by species common and scientific names. Resources can be filtered by Subject, Resource Type, Location, or Source.

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International Maritime Organization.

Amendments to an international treaty aimed at preventing the spread of potentially invasive species in ships' ballast water entered into force on 13 October 2019. The International Convention for the Control and Management of Ships' Ballast Water and Sediments, 2004 (the BWM Convention) was adopted by the International Maritime Organization (IMO), a specialized agency of the United Nations, to address this problem. The BWM Convention entered into force in 2017. The amendments formalise an implementation schedule to ensure ships manage their ballast water to meet a specified standard ("D-2 standard") aimed at ensuring that viable organisms are not released into new sea areas, and make mandatory the Code for Approval of Ballast Water Management Systems, which sets out how ballast water management systems used to achieve the D-2 standard have to be assessed and approved. This will help ensure that aquatic organisms and pathogens are removed or rendered harmless before the ballast water is released into a new location – and avoid the spread of invasive species as well as potentially harmful pathogens.

USDA. Animal and Plant Health Inspection Service.

Effective immediately, the Animal and Plant Health Inspection Service (APHIS) is adding Eau Claire and Richland Counties in Wisconsin to the list of quarantine areas for gypsy moth (GM). The GM populations in these counties have reached the threshold to trigger the quarantine expansion. To prevent the further spread of GM, the attached Federal Order (PDF | 186 KB) establishes Eau Claire and Richland Counties in Wisconsin as quarantine areas. Effective immediately, all interstate movement of GM-regulated articles from Eau Claire and Richland Counties must be handled in accordance with the attached Federal Order. Wisconsin has established a parallel state quarantine.

USDA. Animal and Plant Health Inspection Service.

Effective May 11, 2021, the Animal and Plant Health Inspection Service (APHIS) and the New York State Department of Agriculture and Markets (NYS AGM) expanded the European cherry fruit fly (ECFF) quarantine to include all of Monroe County and Wayne County and a small portion of northwestern Ontario County, New York. With this expansion, the ECFF quarantine now includes all of Erie, Monroe, Niagara, Orleans, and Wayne Counties. This action is necessary to prevent the spread of ECFF to non-infested areas of the United States, while maintaining commercial cherry production and marketing within the state. The APHIS website reflects the expansion of this quarantine and contains a description of all the current federal fruit fly quarantine areas.

USDA. Animal and Plant Health Inspection Service.

Effective immediately, the Animal and Plant Health Inspection Service (APHIS) is adding 37 sections in Charlotte County, 17 sections in Collier County, 45 sections in Glades County, 68 sections in Hendry County, and 28 sections in Lee County, to the citrus black spot (CBS) quarantine area in Florida. We are taking this action because of confirmed detections of P. citricarpa (formerly known as Guignardia citricarpa), the causal agent of CBS, during annual surveys conducted during the 2019 and 2020 growing seasons by APHIS, the Florida Department of Agriculture and Consumer Services Division of Plant Industry (DPI). Federal Order DA-2012-09 outlines these measures and restrictions and parallels DPI’s state-interior quarantine and intrastate movement requirements.

In 2010, CBS was first identified in the Collier and Hendry Counties of Florida. Symptoms of CBS are most evident on mature fruit, with little to no symptoms on leaves. Fresh citrus fruit moved interstate from the CBS quarantine areas must be processed using APHIS-approved methods and packed in commercial citrus packinghouses operating under a compliance agreement with APHIS. APHIS prohibits the movement of any other citrus plant parts outside the quarantine area. The APHIS website contains a description of all the current CBS quarantine areas, Federal Orders, and APHIS-approved packinghouse procedures.

USDA. Animal and Plant Health Inspection Service.

Effective immediately, the Animal and Plant Health Inspection Service (APHIS) is removing 45,562.067 acres from the golden nematode (GN) regulated area in Suffolk County, New York and refining the global positioning system (GPS) points for the descriptions of the regulated area in the town of Oyster Bay in Nassau County, New York. APHIS is removing these areas based on survey results and other criteria in the "Canada and United States Guidelines on Surveillance and Phytosanitary Actions for the Potato Cyst Nematodes, Globodera rostochiensis and Globodera pallida”.

Since 2010, APHIS, working closely with the New York State Department of Agriculture and Markets (NYS AGM), has removed 1,186,693.79 acres from the GN-regulated area in New York. APHIS and NYS AGM have an active control and mitigation program in place to prevent GN from spreading from the remaining 101,955.27 acres, including 5,945 GN-infested acres in eight New York counties. The specific GN-regulated areas are on the APHIS website.

UNFAO. Regional Office for Asia and the Pacific.

An insect that can infest and damage hundreds of hectares of maize fields, literally overnight, is sweeping across Asia – alarming smallholder farmers and threatening livelihoods – but the damage can be limited, the UN’s Food and Agriculture Organization (FAO) reported today. Fall Armyworm is native to the Americas. However, since 2016 it has been aggressively moving ever eastwards, sweeping across Africa, and making landfall for the first time in Asia last summer. Fall Armyworm (FAW) was first detected in India in July 2018 and by January of this year, it had spread to Sri Lanka, Bangladesh, Myanmar, Thailand and China’s Yunnan Province.

Invasive Carp Regional Coordinating Committee.

The Asian Carp Regional Coordinating Committee announced the release of its 2021 Asian Carp Action Plan, a comprehensive portfolio of projects focused on Great Lakes protection.

University of Kentucky. College of Agriculture, Food, and Environment.

The Asian longhorned tick, which preys on a variety of hosts including humans and wild and domestic animals, has been found in Kentucky. This new tick is known to attack animals in large numbers and will be a concern to livestock producers, wildlife enthusiasts and pet owners. The tick has been found in small numbers on elk in Martin County and black bear in Floyd County. It was found in large numbers on a bull in Metcalfe County in the south-central part of the state. Individuals who find a usually large number of ticks on their pet or livestock should contact their local veterinarian. Those who find single ticks they think might be an Asian longhorned tick should work with their county extension agent for agriculture and natural resources to submit the sample to UK entomologists for positive identification.

Commonwealth Scientific and Industrial Research Organisation (Australia).

A new report, Fighting Plagues and Predators: Australia’s Path to a Pest and Weed-Free Future (PDF | 12 MB), reveals the environment is facing a "sliding doors" moment, with two possible futures for Australia, depending on the decisions made today. It highlights a looming wave of new extinctions and outlines two futures for Australia, one based on an unsustainable ‘business as usual’ approach and the other based on implementing targeted actions that will help save our unique biodiversity. The report pegs the conservative cost of damage caused by invasive species in Australia – predominantly weeds, feral cats, rabbits and fire ants – at $390 billion over the past six decades and around $25 billion each year and growing.

National Environmental Science Programme (Australia). Threatened Species Recovery Hub.

New research by the Threatened Species Recovery Hub has shown that invasive or pest species are a problem for 1,257 threatened species in Australia, or about four out of five species. The research which has been published in the scientific journal Pacific Conservation Biology also identified the top ten invasive species based on how many threatened species they impact. Lead researcher Stephen Kearney from the University of Queensland said many people may be surprised at which species top the list. “Rabbits, a plant root disease and feral pigs are the top three pest species impacting Australia’s threatened species,” Mr Kearney said.

Wildlife Forever.

Scroll down for 25 Most Harmful Nonindigenous Aquatic Species in the West

DOI. Bureau of Land Management.

The Bureau of Land Management has released the final programmatic environmental impact statement for fuels reduction and rangeland restoration in the Great Basin. This programmatic environmental impact statement (PEIS) is intended to further efforts to conserve and restore sagebrush communities within a 223 million-acre area that includes portions of Idaho, Oregon, Washington, California, Nevada and Utah.

Sagebrush communities in the Great Basin are a vital part of Western working landscapes and are home to over 350 species of plants and wildlife. Intact sagebrush communities are disappearing within the Great Basin due to increased large and severe wildfires, the spread of invasive annual grasses, and the encroachment of pinyon-juniper. The Great Basin region is losing sagebrush communities faster than they can reestablish naturally. Fuels reduction and rangeland restoration treatments can reduce fire severity, increase sagebrush communities' resistance to invasive annual grasses and improve their ability to recover after wildfires.

CAB International.

CABI has highlighted the top 20 crop pests and diseases for possible prioritization in the Eastern Caribbean as part of a special presentation given to the Caribbean Plant Health Directors Forum (CPHD) aimed at strengthening food security in the region and further afield. Dr Yelitza Colmenarez, CABI’s Centre Director, Brazil, told the conference of CPHD – with the participation of key partners including the FAO, IICA, OIRSA, USDA-APHIS, CIRAD, CARDI, CAHFSA and CABI Member Countries from the Caribbean – that the introduction of new pest and pathogen species are a serious threat to food security within the Organisation of Eastern Caribbean States (OECS) and globally. With the help of a range of CABI tools and platforms, including the Crop Protection Compendium, Invasive Species Compendium, Horizon Scanning Tool and Pest Risk Analysis Tool, Dr. Colmenarez says 20 key insects, bacteria, fungus and viruses pose a particular threat that needs to be identified, monitored and mitigated.

Transport Canada.

Canada's coasts and waterways are vital to our environment, livelihoods, and economy, and must be protected. Ballast water, which helps keep vessels stable in the water, can accidentally introduce and spread aquatic invasive species, like the zebra mussel, if released in the water untreated. To further protect Canadian waters, the Government of Canada is taking action to limit the introduction and spread of aquatic invasive species in ballast water. Today, the Canadian Minister of Transport announced the coming into force of the new Ballast Water Regulations to strengthen existing rules for vessels on international voyages and the introduction of new rules for vessels which remain in Canada and on the Great Lakes. These regulations, which replace the Ballast Water Control and Management Regulations, apply to vessels in Canadian waters and to Canadian vessels anywhere in the world. Vessels are now required to:

  • plan their ballast water management and reduce the number of organisms in their ballast water, typically by installing a ballast water management system; and
  • carry a valid certificate, keep records, and be regularly surveyed and inspected. Smaller vessels may follow an equivalent approach tailored to their operations and size.

For more information, see Managing Ballast Water and Backgrounder: Ballast Water Regulations.

Smithsonian Institution. Smithsonian Tropical Research Institute.

Urban legends about the origins of canal grass in Panama abound, but the Smithsonian has new evidence that puts the question to rest. Canal grass is an invasive weed, native to Asia. Because its tiny seeds blow in the wind, it readily invades clearings and spreads to form impenetrable stands by budding from tillers and rhizomes. Once established, canal grass is challenging to eliminate.

DHS. Customs and Border Protection.

U.S. Customs and Border Protection (CBP) agriculture specialists have already intercepted a dozen significant and potentially destructive pests this year at various ports of entry in Florida as part of the agency's all-encompassing efforts to safeguard American agriculture.

Unknown pests pose a significant risk in agriculture due to a lack of knowledge in controlling the pests and the extent of damage they can cause to crops. U.S. Department of Agriculture (USDA) entomologists recently classified eight pests discovered by CBP agriculture specialists in Florida as first-in-the-nation interceptions and another pest as a new species.

USDA. FS. Southern Research Station. CompassLive.

Chinese privet (Ligustrum sinense) is one of the worst invasive plants in the South. It dominates the shrub layer and often becomes the only shrub underneath trees, especially in streamside areas. But insects and spiders living in fallen leaves and leaf litter were not affected by a privet invasion in Georgia, as a recent study shows.

UN. Food and Agriculture Organization.

Due to the impact of climate change, plant pests that ravage economically important crops are becoming more destructive and posing an increasing threat to food security and the environment, finds a scientific review released this week. The Scientific Review on the Impact of Climate Change on Plant Pests - A global challenge to prevent and mitigate plant pest risks in agriculture, forestry and ecosystems was prepared under the auspices of the Secretariat of the International Plant Protection Convention and is one of the key initiatives of the International Year of Plant Health, which is coming to an end this month. "The key findings of this review should alert all of us on how climate change may affect how infectious, distributed and severe pests can become around the world," said the Director-General of the Food and Agriculture Organization of the United Nations (FAO), Qu Dongyu. "The review clearly shows that the impact of climate change is one of the greatest challenges the plant health community is facing," added Qu.

North American Invasive Species Management Association.

A new invasive species coalition is celebrating significant milestones in preventing expansion of invasive species after the first anniversary of an important agreement. The North American Invasive Species Management Association, Wildlife Forever, the National Park Service, and the U.S. Fish and Wildlife Service are working to implement on-the-ground strategies to engage the American public and help prevent the spread of invasive species under the new agreement.

Florida Fish and Wildlife Conservation Commission.

Now is the time to register for the 2020 Lionfish Challenge! The Lionfish Challenge is an incentive program that rewards harvesters for their lionfish removals. With a tiered system, everybody can be a winner. The participant who harvests the most lionfish will be crowned the Lionfish King/Queen. The Challenge is open now and will run through November 1. You can register for the 2020 Lionfish Challenge and find more information at FWCReefRangers.com/Lionfish-Challenge. Questions regarding the challenge can be sent to Lionfish@MyFWC.com.