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Posts tagged: pests

Helping Honey Bees’ Health

The black dot on this honey bee is a varroa mite--a parasite that sucks vital fluids like a tick, although it also acts like a mosquito transmitting viruses and other pathogens to the bee.

The black dot on this honey bee is a varroa mite--a parasite that sucks vital fluids like a tick, although it also acts like a mosquito transmitting viruses and other pathogens to the bee.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

You’ve probably heard that the honey bees in this country are in trouble, with about one-third of our managed colonies dying off every winter. Later this week, we will learn how the honey bees survived this winter. With severe weather in a number of areas in the U.S. this winter, a number of us concerned about bees will be closely watching the results.

While scientists continue work to identify all the factors that have lead to honey bee losses, it is clear that there are biological and environmental stresses that have created a complex challenge that will take a complex, multi-faceted approach to solve.  Parasites, diseases, pesticides, narrow genetic diversity in honey bee colonies, and less access to diverse forage all play a role in colony declines.  To confront this diverse mix of challenges, we require a mix of solutions – the odds are that we won’t find one magic fix to help our honey bees. Read more »

International Researchers Mobilize Against Risky Stowaway Pests

New Zealand has one of the most well-developed forest biosecurity programs in the world. The logs pictured here at the Port of Tauranga were fumigated prior to export to minimize the chance of accidentally spreading forest pests. (U.S. Forest Service/Frank Koch)

New Zealand has one of the most well-developed forest biosecurity programs in the world. The logs pictured here at the Port of Tauranga were fumigated prior to export to minimize the chance of accidentally spreading forest pests. (U.S. Forest Service/Frank Koch)

Sometimes there is more to global trade than meets the eye. While consumers and economies may benefit from expanding market opportunities and a seemingly endless array of readily available goods, harmful pests could be lurking as people and products are transported between countries.

An international research network, including scientists from the U.S. Forest Service, has come together to share information about how exotic animals, diseases and plants can move and spread—and threaten agricultural and natural resources.

The International Pest Risk Mapping Workgroup consists of governmental and academic scientists from around the globe who study potential stowaway pests in order to assess the likelihood of their establishment in new locations and the impacts if and where they spread. Read more »

What does Maple Syrup Have in Common with an Invasive Insect?

Two Asian longhorned beetles on maple tree

Two Asian longhorned beetles on maple tree

Today is National Maple Syrup Day!  So, what does maple syrup have in common with an invasive insect?  Well, if the insect is the Asian longhorned beetle, then they both can come from maple trees.  Obviously, we want the maple syrup and not the invasive beetle.  But who cares?  And why should anyone care?  Well, I care and here’s why:

Not only do I work for the USDA’s Animal and Plant Health Inspection Service, an agency that is actively fighting known infestations of Asian longhorned beetle in three different states, but I also am a native of Vermont. Read more »

Stop Stink Bug Project

The brown marmorated stink bug, a winged pest from Asia that is eating crops and infesting U.S. homes. U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS) scientists are launching a campaign to ask volunteers to count the number of stink bugs in their homes. USDA-ARS photo by Stephen Ausmus.

The brown marmorated stink bug, a winged pest from Asia that is eating crops and infesting U.S. homes. U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS) scientists are launching a campaign to ask volunteers to count the number of stink bugs in their homes. USDA-ARS photo by Stephen Ausmus.

Calling all insect enthusiasts and frustrated gardeners!  USDA scientists need your help in documenting Brown Marmorated Stink Bugs (BMSB) in your home. Beginning September 15th through October 15th, we’re asking citizens across the Mid-Atlantic region of the United States to record daily counts of this pest on the exterior of their homes, along with their location and the time of each count. While USDA scientists are focusing on the Mid-Atlantic region, any data they can get from other U.S. regions would also be helpful to their research.

The quest to find out just how many stink bugs there are, and how they behave, is the brainchild of a consortium of researchers from USDA, the University of Maryland, Pennsylvania State University, Rutgers University, Virginia Tech, the Northeastern IPM Center, Oregon State University, North Carolina State University, Cornell University, the University of Delaware and Washington State University. This project is represented on the website, “Stop BMSB (www.stopbmsb.org),” which was launched in 2011. Read more »

Our Forests and Climate Change

Americans know the importance of forests to our communities and our economy.  They provide jobs and recreational opportunities, filter our air and water, and make up essential habitat for wildlife and natural resources.  But increasingly, we’re also recognizing that forests play an important role in mitigating climate change.

Recently, President Obama announced a Climate Action Plan to reduce carbon pollution, prepare for the impacts of climate change on our communities and economy, and lead international efforts to combat global climate change. This plan recognizes that America’s forests play a critical role in addressing carbon pollution, absorbing as much as 14 percent of our country’s greenhouse gas emissions each year.  Over the last several decades, forest regrowth on former farm lands, reforestation, and maturing forests have kept our forest growth rates high, helping us absorb even more carbon. Read more »

A New World-Old World Problem and How Genetic “Fingerprints” May Help

ARS scientists and NIFA-funded researchers work to improve the tools and processes to develop better grapes and grapevines. Their discoveries will make it easier for grape breeders to identify vines that combine the most desirable traits.

ARS scientists and NIFA-funded researchers work to improve the tools and processes to develop better grapes and grapevines. Their discoveries will make it easier for grape breeders to identify vines that combine the most desirable traits.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from USDA’s rich science and research portfolio.

When it comes to grapes, there’s a New World-Old World dichotomy. Grapevines originating in the Americas (e.g. Vitis labrusca, Vitis riparia) can resist pests and diseases, but they generally don’t have the taste or aroma of grapes with European origins (Vitis vinifera).  But European grapes are more susceptible to pests and disease.

Grape breeders try to combine the best of both worlds, but here’s the problem: if you cross one grape with another, there is no guarantee your progeny will inherit the desirable traits. And because it takes so much time to grow a grapevine, produce grapes from those vines, and for those grapes to be evaluated, bringing a new grape to market can take 20 years or more. Scientists can speed things up by identifying genes that give grapes the right blend of the best characteristics. Identifying the genes will tell you the characteristics of the vine without having to wait for it to grow. Read more »