This picture is often misdiagnosed as Leafhoppers but it is cannabis leaf damage of a four-lined plant bug (Poecilocapsus lineatus), which make spots in clusters.
Plant Problems Symptoms: Bugs are visible
Planthoppers can attack and infest cannabis, leaving a unique cotton-like growth while they suck the life out of your plants! Planthoppers also spread plant diseases, so you want them away from your plants as soon as possible. Example of leaf damage from planthoppers. (Thanks to George4green for several of the awesome planthopper pics) Melanoliarus planthopper
Hemp russet mites are tiny bugs that attack cannabis plants. In fact, they are so small you can only see them with a magnifier unless there are thousands of them infesting your marijuana plant. They live the crevices of leaves, stems, or buds, and the initial symptoms are not that serious. Many cannabis growers may
Various species of stink bug have been known to attack cannabis plants. They lay distinctive patches of white eggs, which hatch into small beetle-like insects and eventually grow into stink bugs. I've never personally encountered this insect myself, but they attack many marijuana plants both indoors and outside so I'm gathering pictures in information to
Spider mites are a common cannabis pest that can be very difficult to get rid of. Learn how to spot and treat at the first signs of these nasty pests.
Do you see tiny black flies buzzing around your soil? Learn how to get rid of this common yet annoying pest again quickly.
Broad mites are tiny; they can be almost impossible to spot, and the symptoms may be similar to deficiency. Learn how to identify and get rid of them!
Do you see bites from crickets or mole crickets tunneling under your cannabis plants? Learn how to get rid of them and protect your plants!
Have you noticed holes in your leaves or seen grasshoppers or locusts on your plants? Learn how to get rid of them for good!
Leafhoppers can be found all over the world and come in a variety of colors. If they are attacking your cannabis plants, learn how to get rid of them!