Black flies are a pest for marijuana plants. They are flies that live in humid climates and high temperatures , so they are also very present in indoor crops.
THE SUBSTRATE FLY ON MARIJUANA PLANTS
Unfortunately we will not realize that the plague has arrived until we see the tiny black flies on the plants. At that time the fly is already an adult and can lay its eggs . It is very difficult to detect them earlier.
These flies, which measure 5 millimeters , are brown and black in color . The larvae appear a few days after laying and survive underground for about two weeks feeding on the roots. In indoor crops, where humidity is combined with temperature or in naturally humid areas, black flies roam freely on plants.
They will deposit their eggs in the substrate and after three days they will hatch, feeding on the roots of the marijuana . From that moment the plant is already weakened and, if the pest is not eliminated quickly, it may not be able to recover . If the plant weakens it is possible that other types of pests or diseases appear, such as mold, fungi, etc.
Depending on the growth stage the crop is in, it could be a catastrophe and become unrecoverable once all the roots have been attacked, as the plant will not be able to nourish itself properly and these gnats will not stop reproducing.
HOW TO ELIMINATE THE FLY FROM THE SUBSTRATE OF MARIJUANA PLANTS
To know how to eliminate small flies from plants and that they never appear, controlling the temperature, humidity and composition of the soil is elementary. The top of the soil must be dry so the flies will not be able to lay their eggs.
The sticky traps or snares Catcher help that much of the black flies are trapped marijuana. Arlite , which is also used for water purification, can be sprinkled on the ground to deter flies. Natural remedies such as cinnamon or lemon also fulfill their function as repellants, but to a lesser extent.
As an initial prevention, making a mixture of Trabe Pro Neem substrate would turn the soil into a natural insecticide that does not harm the marijuana root at any time . If you’ve been late and the plant is infected, spraying it with a Neem oil mixture kills some of the pest . The Neem tree has insecticidal properties that are effective against many types of insects and pests, but it is harmless for crops.
There is nothing like home remedies for black flies , because they are usually less invasive than chemical insecticides that can cause, to the minimum excess, the death or irreversible contamination of the plant, as well as the eradication of the fly. Prevention by controlling temperature, humidity and air circulation, especially in indoor crops, is the most important step.