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whiteflies on weed plants

Whiteflies on weed plants

When our plant is being attacked by a pest, it is very important to identify the insect or mite to know how we should act.

There are some measures we can take to prevent this annoying plague. Only by performing a series of tricks can we prevent the Whitefly attack:
Marijuana white fly

The Whitefly is an annoying pest that besides causing direct damage by its action, it can cause a series of indirect damages derived from its presence in our crop.

  • 1. Use of reflectants such as silver foil or CDs to keep the whitefly away from the crop.
  • 2. Cultivate basil, Chinese carnations, marigold or ornamental tobacco as they are plants that repel this plague. In this way, we can keep the whitefly away from our crop.
  • 3. Neem oil: in addition to preventing whitefly, it helps keep away other pests such as mealybug, aphid or red spider mite and at the same time acts as a fungicide. If it is too late, we have not prevented its appearance and we already have infected plants, not everything is lost. We can treat them to prevent their spread and get rid of it.

Furthermore, we shouldn’t use this type of product when our plants have started flowering. So, chemical products will have to be automatically discarded if we are in this stage.
We must remember that this plague is resistant to chemical insecticides, so we must alternate them with natural remedies to be able to kill it.
In addition, these products also remove predators from the whitefly, so wherever possible, we should use an environmentally friendly method to kill pests and choose chemicals only as a last resort.
This pest grows and reproduces quickly in warm and humid environment. The high temperatures and relatively high humidity favour its proliferation and that ir why they are considered mainly a summer pest.

Whitefly is probably one of the most common and annoying pests that can affect cannabis crops.

Whitefly is probably one of the most common and annoying pests that can affect cannabis crops. It is an insect belonging to the family of Aleurodidae

Whiteflies on weed plants

Their body consists of three parts: head, thorax and abdomen. As other insects, they’ve six legs and also a pair of white wings. As already mentioned, they?ve biting-sucking mouth parts thanks to which they can feed on the sap of young leaves and tissues.

As a last resort, and always avoiding their use for the sake of our environment, we can use chemicals to eradicate a Whitefly pest. These treatments will be especially effective against the larvae, which tend to be more sensitive to these substances. It should be noted that Whiteflies have a great capacity to develop defenses against these products, so we should alternate the use of several active principles to get maximum effectiveness. We should always choose insecticides respectful with the natural enemies of the plague that we are going to treat, limiting their use to the most and always as last resource, since a biological crop is always better.
Apart from the symptoms caused directly by its sap sucking action, other symptoms related to the sugary honeydew secreted by these insects may appear, what favours the appearance of sooty mold, a black fungus that ?dirty? the leaves and weakens the photosynthetic process. It may also appear other diseases, viruses and bacteria.

Whiteflies are homipteran insects of the Aleyrodidae genus that attack many types of cultivated plants, including cannabis crops. These flies are about 2 mm in length and have whitish appearance, with a pair of wings that serve as displacement method. They?re usually found on the underside of the leaves (where they also lay their eggs, as we?re going to see later) and, like other sucking insects such as Aphids or Mealybugs, they feed on sucking the sap of the plants.
Macrolophus Caliginosus, natural predator of the White-Fly
As active substances against the White-fly, and among others, we find Butocarboxim, Buprofezin, Imidalclopid, etc.
This insect reproduces through eggs, which it lays on the underside of the leaves in a quantity of 180-200 in each egg laying. These eggs are almost microscopic, of oval-pyramidal shape and have a yellowish-white colour. They?ve usually four generations a year (one generation is the duration of the insect?s life-cycle from the egg until it dies like adult) depending on climatic conditions and hygiene, although in the greenhouse they can have up to ten per year, turning so into a serious pest.
Tremendous Whitefly pest infestation

Keep in mind then – especially when you?re treating with a flying insect which has ease for the displacement – that whiteflies can cause serious damage to a crop, not only by its sap-sucking action, but also by the diverse diseases that can be transmited to the plants, for whiteflies are a vector insect of these.

Whiteflies are small flying insects that can ruin any crop if they have favourable reproduction conditions. In this Post we explain a little more abou