Beet Curly Top Virus (BCTV) is a cannabis plant disease that may cause curling, twisting leaves, yellowing, and stunting. Often spread by leafhoppers.
Archives: Plant Problems
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.
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
Is your cannabis plant growing smooth leaves and you're not sure why? Learn what it means to accidentally "re-veg" a cannabis plant and how to fix it!
Manganese deficiency can cause cannabis leaves to become yellow in between the veins, with mottled brown spots on the affected leaves. Learn how to treat it!
Tobacco mosaic virus causes strange mottling symptoms in the leaves, slow growth and reduced yields. Learn how to identify and treat TMV for good!
Cannabis leaf edges and tips turning yellow? Copper deficiency can cause dark, shiny leaves with purple or blue undertones. Learn how to spot and treat it!
From wilting to dropping to yellow leaves to nutrient deficiencies, under watering cannabis can cause a lot of unexpected problems and symptoms. Learn & fix!