Why So Blue? Abdomen Color in Asian Citrus Psyllid Offers Clue to Spread of Citrus Greening Disease

Asian citrus psyllid color morphs

What do horseshoe crabs have to do with citrus greening disease? Well, nothing really. But the protein that famously gives horseshoe crabs their blue blood has been found at increased levels in some Asian citrus psyllids (Diaphorina citri), which researchers suspect is evidence of the insect’s immune response to the citrus greening disease bacteria that […]

Citrus Growers and Plant Breeders Should Pay Attention to Citrus Flush to Fight Citrus Greening Disease

Diaphorina-citri-5006083-SMPT-2

By Ed Ricciuti Scientists have found a more efficient way to infect experimental trees with citrus greening disease, boosting efforts to find citrus varieties that are able to resist the bacterium which causes the disease. At the same time, their research has produced an unexpected bonus: a new strategy that growers can use to protect […]

Good News for Citrus Growers, Bad News for Asian Citrus Psyllids (Hopefully)

acp-forWP

U.S. Agriculture Secretary Tom Vilsack recently announced $30 million in funding for 22 projects to help citrus growers combat huanglongbing (HLB), also known as citrus greening disease, which is spread by the Asian citrus psyllid (ACP). The money will fund promising projects that could offer near-term solutions, and research funding that may develop long-terms solutions. […]

Area-Wide Management a Must for Asian Citrus Psyllid

ACP

The Asian citrus psyllid (Diaphorina citri) carries a bacterial pathogen that causes citrus greening disease (huanglongbing), which is destroying trees in many countries and states, including Florida. It’s been estimated that this insect-disease combination has cost Florida’s citrus industry $1.3 billion in losses. The situation has become so bad that some citrus growers have abandoned […]

Are Asian Citrus Psyllids Afraid of Heights? Elevation Study May Provide Clues for Stopping Them

Asian-citrus-psyllid-adult

The Asian citrus psyllid, Diaphorina citri, was first discovered in Florida in 2005 and in Puerto Rico in 2007. Since then it has caused billions of dollars’ worth of damage by spreading a bacterium which is responsible for citrus greening disease (Huanglongbing), the most serious disease of citrus in the world. However, scientists from the […]

California Researchers Find New Tool Against the Asian Citrus Psyllid

asian-citrus-psyllid

The Asian citrus psyllid (Diaphorina citri), or ACP for short, is an invasive insect that threatens the citrus industry because of a deadly disease — known as huanglongbing, or citrus greening disease — that it spreads to citrus trees. This insect-disease combination has cost Florida’s citrus industry $1.3 billion in losses, and production costs have […]

Wasps Used to Combat Citrus Greening Disease are Unlikely to Threaten Non-target Insects

tamarixia_radiata-feature

In August 2008 the Asian citrus psyllid (Diaphorina citri), an invasive insect known to spread citrus greening disease (huanglongbing), which can be lethal to citrus trees, was detected in southern California. After initial treatments with insecticides were determined to be costly and unsustainable, a decision was made to instead try biological control by using insect […]

Government Shutdown is Bugging Entomologists

eab23

The recent government shutdown due to a stalemate in Congress over funding for 2014 is impacting research on insects which will affect the lives of many Americans, according to the Entomological Society of America (ESA). In addition to the closing of government agencies such as the Department of Agriculture, the National Institutes of Health, and […]

Can Pakistani Wasps Save the California Citrus Industry?

citrus-psyllid

An invasive insect called the Asian citrus psyllid is wreaking havoc in Florida as it spreads Huanglongbing, otherwise known as citrus greening disease. Growers are so worried that they are trying to genetically modify orange trees so they are resistant to the threat. But in California, they’re trying a different approach — biological control. Mark […]

Can a Spinach Gene Save America’s Orange Trees

citrus-psyllid

A recent article in the New York Times called “A Race to Save the Orange by Altering Its DNA” tells the story of citrus greening disease, which is destroying citrus trees in Florida. The disease is spread by an insect, the Asian citrus psyllid, an invasive species which was first detected in Florida in 1998. […]