Cucumber Plants
Q.

What is this on my cucumber plant leaves

Zone Plymouth. In green house | cliveg2006 added on May 24, 2019 | Answered

The plant is in the green house in a grow bag. Am I over wartering it or is it fungal. The plant looks healthy but now the leaf is getting brittle. How can I cure this

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on May 24, 2019

Anthracnose is a fungal pathogen occurring in moist, warm conditions. The first symptoms to appear are circular yellowish spots that turn brown to possibly reddish. The fungal disease may cause all the leaves to have a burned-out appearance and sunken spots develop on the fruit with a pink-colored substance seeping from the spots. Brownish black streaks may also appear on the stems of the plants. Splashing water -- from rain or irrigation -- will spread this contagious disease from one cucumber plant to another. Once anthracnose is established, it is difficult to control. Fungicides will control this fungal disease if applied at the first sign of infection.
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

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