Top 3 pests affecting cannabis growing

Written by on 14 June, 2022

As a cannabis grower you should be aware that not only should you strive to maintain proper levels of factors such as temperature, humidity, lighting and so on, but also take care of your plants from the emergence of pests that can affect your marijuana growing.

That is, this occasion, we present you with a top three of the pests that can be present in cannabis plantations:

1) Red spider

This is probably the most common pest in indoor growing cabinets, rooms and greenhouses. In size, they measure only a few millimeters and although they are commonly known as red spiders, they can have different colors.

In many occasions, the growers confuse them with other spots, so it is recommended to use a magnifying glass to see them well and to be able to eliminate them in time. In this sense, it is very important to avoid the environmental conditions for their reproduction.

These spiders suck the sap from the leaves and can end the life of the marijuana plant in a short time. They tend to leave marks that many relate to a lack of nutrients, so you must be very careful. Also if you see a kind of web on the leaves and around the buds.

2) White fly

This pest, among other things, can weaken plants and affect their development, and they can reproduce easily. Among the main symptoms produced by the invasion of this insect (about 2mm long and white/yellowish in color) are chlorosis and necrosis of the leaves caused by its sucking action.

You usually get them on the underside of the leaves, where they lay their eggs. Because of them, you will probably also be able to see leaves that are yellowish due to the chlorosis caused by sucking the sap, the molasses that flies secrete or a whitish powder on the underside, among others.

3) Aphid

This pest also feeds on the sap of the leaves and causes various consequences in the plants. It can also reproduce rapidly and invade the completely growing area.

If you notice that the leaves of your growing are yellow and dry, and a kind of molasses that they secrete, you must act quickly because, these are some of the symptoms that you have to be aware. That honeydew also attracts ants, so be alert when you start to see them.

Aphids can look very different depending on the stage of life and you will usually see them on the stems and on the underside or back of the leaves.


Constantly and carefully, check your plants to make sure that no pests are present. We also advise you to go deeper into the symptoms and characteristics of these pests so that you can detect them in time and learn how to avoid them and eliminate them correctly.





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