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I have a citrus tree in my backyard.

When you take a moment to think about it, citrus probably plays a larger role in your daily life than you realize. Your backyard oranges become fresh-squeezed orange juice at breakfast. That perfect lime from your local grocer adds zest to your family’s favorite fish taco recipe. And you love taking in the smell of orange blossoms that fill the California air in the spring.

Now imagine if you walked out to your backyard and those oranges weren’t there. Or visited your local grocer and found no California oranges, grapefruit, lemons or limes in the produce section. Imagine if you could never enjoy the springtime scent of orange blossoms again.

While this seems unimaginable, it could become a reality if we don’t work together to stop the spread of a tiny bug that causes a huge problem

Huanglongbing and Asian citrus psyllid are more than just a mouthful…

Huanglongbing (HLB), also known as citrus greening, is a bacterial plant disease that is fatal to citrus. Infected trees decline in health, produce inedible fruit and eventually die.

Asian citrus psyllid is the tiny insect that spreads HLB. The psyllids feed on the leaves and stems of citrus trees and can infect the tree with the bacterium that causes HLB. Once a citrus tree is infected with HLB, it can die in as little as five years.

While HLB has only been found on one tree in California…

There is no cure for the disease.

Diseases in trees and plants spread much like they do for people, and prevention is imperative to stopping an outbreak. Know the facts about Asian citrus psyllid and HLB so you can identify their signs and help keep California’s citrus industry strong.

[Link to HLB/ACP video on ES page]

How am I affected?

Consumers already feel the impact of HLB on the FL citrus industry. Since 2010, the price of a gallon of FL orange juice has risen from $5.49 to $6.43 in 2014.

If Huanglongbing (HLB) continues to spread, the disease could impact California production and cause the price of fresh market citrus to rise.

What’s My Role?

More than 60 percent of California homeowners have citrus trees in their yards. Because HLB can spread from infected citrus trees in residential areas to nearby commercial growers, homeowners play a critical role in the fight against the disease.

When Asian citrus psyllids attack your citrus tree, these tiny insects can quickly spread across an entire community.

The psyllids reproduce quickly and migrate to other trees, whether in your neighbor’s yard or in the commercial citrus grove a few blocks away, putting both at risk for contracting HLB. By knowing the signs and acting early, you can help ensure your favorite fruits don’t disappear.

What can I do?

Luckily, you’re not alone in the fight against HLB. You’ve taken care of your citrus tree for years, and the arrival of this pest in California doesn’t mean the end for your favorite fruit. It’s easy to take action to save citrus!

Help prevent HLB by proactively treating your citrus trees to stop the psyllids before they attack, and be sure you know what to do if you suspect your citrus tree is infested. Here are four ways you can join us in our mission to save California citrus:

  1. Access additional resources specific to your area by visiting

  2. Have your trees checked if you think they might be infected. Call the California Department of Food and Agriculture at 1-800-491-1899 for more information.

  3. In the meantime, treat your tree with Bayer Advanced’s portfolio of products, along with other best management practices outlined on this website. Learn more about the signs and the treatment options available for your citrus trees here.

  4. Spread the word about HLB and share why you love citrus with your friends and family. With every share of the hashtag #citrusmatters, Bayer CropScience will donate $1 to California Citrus Mutual to support research focused on stopping this invasive pest and devastating disease.
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