Cucumber Plants
Q.

Lemon cucumber leaves covered w/ blackish “dust”

Zone Sierra Foothills, Central California | Hayabuza added on July 29, 2016 | Answered

What is the cause/cure of the darkish "dust" on the lower leaves of my lemon cucumber vine?

A.
A.Answers to this queston: Add Answer
kh0001
Answered on July 30, 2016

Sounds like your cucumber plants have a case of what's known as "sooty mold," which means you have one of any number of common pests attacking your vine.

This article will help you get rid of the pests, if that's in fact what it is:

https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

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