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

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 […]

Area-Wide Management a Must for Asian Citrus Psyllid

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

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

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 […]