---
title: "I have a cucumber plant and today I’ve noticed these small black…"
description: "I have a cucumber plant and today I’ve noticed these small black bugs. The plant is suffering a little, many leaves turning yellow/brown. Any idea what this is…"
url: "https://getplanta.com/community/CQDcNKuFT2eBWinfsTKHmQ/hPbC9tpuWkqGDZkDE80XMF"
community: "Gardening and Outdoor"
author: "Livy"
published: "2025-07-20T19:42:31.790751Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/quoWiWqlsAtATfBaUGXuqU_yuHrdyasJ4IlyFr_LVBg/Q5a1UIZDTaeyM8xMSyv9_Q.webp?size=large"
---

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# I have a cucumber plant and today I’ve noticed these small black…

_Posted by Livy on 2025-07-20_

I have a cucumber plant and today I’ve noticed these small black bugs. The plant is suffering a little, many leaves turning yellow/brown. Any idea what this is and how to kill it? Thanks!

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/quoWiWqlsAtATfBaUGXuqU_yuHrdyasJ4IlyFr_LVBg/Q5a1UIZDTaeyM8xMSyv9_Q.webp?size=large)

## 8 comments

### Adam commented on 2025-07-21

Neem oil can get rid of pests and molds on plants just read the instructions on the bottle if you get it

#### Livy replied on 2025-07-21

I sprayed Neem oil yesterday. I also put some Sevin, but the back of the leaves also have these bugs. Hopefully this will work! Thanks!!

#### Livy replied on 2025-07-21

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/quoWiWqlsAtATfBaUGXuqU_yuHrdyasJ4IlyFr_LVBg/3qBn6rSfRiypJ7WOXdWN_Q.webp?size=large)

#### Adam replied on 2025-07-21

Yea no problem

#### Adam replied on 2025-07-21

Hope it works

### Koral commented on 2025-07-23

Sevin has a spray and it actually recommends being sprayed under the leaves. It should solve the issue. These look like the ones that had been eating my grape leaves

#### Adam replied on 2025-07-24

Oh nice

### Rybaroxaban commented on 2025-08-04

The only thing that seemed to get rid of these jerks when they were going to town on my Rose of Sharon was a two pronged approach: 1) imidacloprid 2) ladybugs (to eat the pre-existing bugs already there).

Keep in mind that imidacloprid is a systemic insecticide - it leaches into the soil, is absorbed by the plant and permeates its tissues so any time a bug chomps on it, it gets a mouthful of poisoned food. I don't know if it is recommended to put it on something you will end up eating yourself (if the cucumber plant survives and bears cucumbers).

Also - the ladybugs either will leave as soon as the food source runs out (or die also from the insecticide if they try to eat the plant too)

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