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would you please diagnose this cucumber leaves disease?

Cucumber    Jordan

spots centers light pink colored, water soaked, pictures are arranged in order of disease development progress.
green house cultivation.


Posted by: Yahya Dana (1 point) Yahya Dana
Posted: November 7, 2017

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Answers

1
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It looks like symptoms may be due to abiotic stress (like high temperature, humidity, light, etc.,) Do you regulate temperature and humidity in your greenhouse? And how frequently you irrigate the plants?


Posted by: Dr. Ravishankar Narayana (134 points) Dr. Ravishankar Narayana
Posted: November 7, 2017

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Yahya Dana commented,
Temp. and humidity not regulated, sandy soil, last action was ammonium sulphate + thiomethoxam+ iron+tebuconazol+humic acid by fertigation.
11 days ago.



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