Archives: Plant Problems

by Nebula Haze 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...
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by Nebula Haze 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 plant. They live the the crevices of leaves, stems or buds, and the initial symptoms are not that serious. Many growers may...
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by Nebula Haze 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 and I wanted to gather some pictures to help...
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by Nebula Haze What Causes Plants to Grow Smooth Leaves? What does it mean to accidentally "re-veg" a cannabis plant? "Re-veg" is short for "re-vegetation" and refers to what happens if a flowering plant stops flowering and re-enters the vegetative stage. For photoperiod cannabis strains (which is the majority of strains), a plant needs long...
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Problem: Leaves may become yellow in between the veins, with mottled brown spots on the affected leaves. These brown dead patches may spread and eventually kill the leaf. Leaves may also shred and fall apart. Overall growth of the marijuana plant may be stunted. With a manganese deficiency, the yellowing will begin at the base...
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by Nebula Haze Tobacco Mosaic Virus (TMV) is a virus that is commonly found in tobacco plants which causes splotchy or twisted leaves, strange mottling symptoms (a "mosaic"), slowed growth, and reduced yields. Mosaic virus has spread to several other species of plants, and there is evidence that cannabis plants may be able to catch mosaic virus,...
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Problem: A cannabis copper deficiency appears with leaf symptoms such as dark leaves that take on blue or even purple undertones. The tips and edges of leaves turn pale yellow or white in stark contrast to the rest of the leaves which have turned dark. In flowering it's important to correct a cannabis copper deficiency as...
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Problem: If your plant is drooping, then it's usually a sign of either over or under-watering. Cannabis Underwatering Symptoms drooping (plants often get better after being watered) leaves often seem "papery" and thin because they don't have any water inside them. (This is opposed to overwatering where the leaves often feel bloated and "fat" from all the water...
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by Nebula Haze Do Your Marijuana Leaves Have Nutrient Burn? Quick Summary: Nutrient burn or fertilizer burn is one of the most common beginner cannabis growing problems. The yellow or brown leaf tips are caused by too-high levels of nutrients at the roots, which disrupts the flow of water through the plant and causes the symptom of...
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by Sirius Fourside Table of Contents Introduction to Root Rot (With Tons of Pictures!) What Triggers Root Rot? Solution: Get Rid of Root Rot Forever! Cannabis Root Rot - Slimy, brown, twisted or unhealthy roots are caused by unwanted pathogens in your hydroponic tank! The marijuana plant on the left is healthy, and the plant on...
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