There are a lot of signs to look out for when growing weed plants. Dry brown leaves is a sign of dying weed but how about the less obvious signs? If you don’t want to contaminate your weed with pesticides, you’ll need to learn how to identify and deal with pests. We’ve got you covered with the most dangerous pests and diseases that could kill your weed plants.
Tiny flying black bugs around your plants and in the soil? You’ve probably got fungus gnats. Fungus gnats can be a result of watering a plant too much.
Leaving the top inch of soil moist and warm will give them a breeding ground. Their eggs hatch into larvae which are responsible for damage to cannabis roots. As a result, growth is slowed, leaves show signs of nutrient deficiency, and yields might be reduced.
Even worse, fungus gnats can be the death for young cannabis plants.
What to do: Place yellow sticky cards in the grow area. Yellow to a fungus gnat is like light to a moth. The yellow sticky card is a glue trap that will catch many of the adult fungus gnats.
You can avoid watering your plants a few days and use a fan to dry out the top layer of soil. That way the gnats can no longer breed.