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Identify Citrus Diseases with New iPhone App

Posted by Lawrence Hawkins, APHIS Public Affairs Specialist, Sacramento, CA in Conservation Technology
Oct 17, 2018

Does your citrus tree have spotted leaves or fruit with brown raised spots or small lopsided fruit?  Good news, USDA released a free Save Our Citrus iPhone app that makes it easy to identify and report the four leading citrus diseases: citrus greening, citrus canker, citrus black spot and sweet orange scab.

In just a few steps, the Save Our Citrus app, available in English and Spanish, allows you to report the symptoms, upload a photo and receive an individual response back from citrus experts.

The new mobile app will ask questions to help identify and report citrus diseases.
The new mobile app will ask questions to help identify and report citrus diseases.

Today, one or more of these diseases threatens every acre of citrus in America, from Florida to California. In 2012, states impacted by one or more of these diseases include California, Arizona, Texas, Louisiana, Mississippi, Alabama, Georgia, Florida, South Carolina and Hawaii. Beyond the 50 states, the threat to fruits also extends to several American territories, including Puerto Rico, Guam, American Samoa and the U.S. Virgin Islands.

With the rapid spread of citrus diseases, USDA realized the need to engage residential citrus growers and request their help to keep an eye out for citrus diseases in backyards, orchards, groves and everywhere the diseases pose a threat.  Residents are the first line of defense in stopping the devastation caused by citrus diseases.

Under USDA’s Blueprint for Stronger Service, APHIS has announced several program improvements. Investing in technology, such as the Save Our Citrus app, has allowed APHIS to modernize and improve its customer service and make better use of available resources. Improvements to technology and customer service will help to create more timely, predictable and higher-quality products.

Visit the app page on the Save Our Citrus site for a free download on iPhone, iPad and iPod touch mobile devices. To learn more, follow us on and (@SaveOurCitrus), or visit

Category/Topic: Conservation Technology

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Apr 12, 2012

Any hope for a soybean pathogen app? I am in the USDA-ARS and would love to see something like this to help identify different foliar diseases.

Jul 08, 2013

Does that iPhone App really helped anyone ?

Henry Wirz
Oct 04, 2016

One of my orange trees died last year. This year the second one is showing signs of sickness. The leaves are mottled yellow and light green and are deformed.

Henry Wirz

Oct 16, 2018

The link under the “Save Our Citrus” app takes you to a parked domain with nothing but revenue generating search links. And, there is no “Save Our Citrus” app on the Apple App Store. There are however some other citrus disease related apps. Just search for “citrus”.

Ben Weaver
Oct 17, 2018

@Kevin - Thank you for reaching out for information about citrus disease reporting after reading the blog post. You were not able to find that reporting app because it was discontinued a few years ago. Please visit our informational website for citrus issues,, at its new location to learn more about the signs and symptoms of citrus disease, including how to report suspected detections.

Ytha Yu
Apr 24, 2020

I cannot find the Save Our Citrus app from Apple's App Store

Ben Weaver
Apr 24, 2020

@Ytha Yu - you were not able to find that reporting app because it was discontinued a few years ago.