Register for an account

X

Enter your name and email address below.

Your email address is used to log in and will not be shared or sold. Read our privacy policy.

X

Website access code

Enter your access code into the form field below.

If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. Your website access code is located in the upper right corner of the Table of Contents page of your digital edition.

Planet Earth

Protecting Olive Trees From Above

The big picture on fighting orchard infection.

By Lacy SchleyOctober 19, 2018 12:00 AM
Olive-Protection
Alberto Hornero/Swansea University

Newsletter

Sign up for our email newsletter for the latest science news

Europe’s olive trees are suffering. The culprit — Xylella fastidiosa, a devastating bacterium that’s common in the Americas — can infect up to 350 different plant species. The pathogen made its way across the pond only recently. Farmers in Europe have to move fast to stop its spread (usually by sap-eating bugs), or else risk destruction of their crops. In response, experts have developed an aerial remote-imaging system that scans orchards to pick out infected trees before they show the telltale symptoms: withered branches and scorched leaves. The system, which uses a combination of thermal and electromagnetic imaging, can flag infected trees with over 80 percent accuracy. This thermal image shows the severity of symptoms of an orchard in southern Italy from blue (least severe) to red (most severe).

2 Free Articles Left

Want it all? Get unlimited access when you subscribe.

Subscribe

Already a subscriber? Register or Log In

Want unlimited access?

Subscribe today and save 70%

Subscribe

Already a subscriber? Register or Log In