Leaf Doctor 4+

Name: Leaf Doctor
Rating: 1.9 (20 reviews)
Author: University of Hawaii

University of Hawaii

Designed for iPhone

- 1.9 • 20 Ratings

- Free

iPhone Screenshots

Description

The Leaf Doctor performs quantitative assessments for plant diseases on plant organs such as leaves. Users collect or submit photographs of diseased plant organs and calculate the percentage of diseased tissue. Through a user’s touching of the device screen, the algorithm employs user-specified values for up to eight colors of healthy tissues in the photograph. The color of each pixel is then evaluated for its distance from the healthy colors and assigned a status of either healthy or diseased. Users may slide a threshold bar until satisfied that diseased tissues are represented accurately before the percentage calculation. The assessment data and photographs may be sent by e-mail to any recipients. Instructions for using the app are provided on the About screen. The Leaf Doctor was produced by the University of Hawaii at Manoa, College of Tropical Agriculture and Human Resources.

Oct 24, 2017

Version 1.1

This app has been updated by Apple to display the Apple Watch app icon.

Compatible with iOS 11

1.9 out of 5

20 Ratings

Didn’t help with diagnosis

Now I know that my tomato leaf is 49% diseased with a mystery illness.

Read the description folks

If you want a diagnosis and assistance with control, see your local county extension agent. If you need to quantify the % leaf area containing lesions using an iPad then use this. Glad this is available. I am going to try it out and see if it can assist technicians with conducting ratings.

My Aloe plant

There is something wrong with my Aloe and I figured that this app could tell me what was wrong with it and how to fix it. Instead, it told me that my plant was healthy when it obviously is not.