Cannabis pests and diseases - Page 2

What's the Whitefly?

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What is Botrytis?

Botrytis or Gray Mold is a pathogenic fungus (necrotrophic) that affects more than 220 plant species, including marijuana. Actually, it is probably the most common fungus in cannabis crops, either indoors, outdoors, or in greenhouses, and it usually affects plants during their latest stage of flowering, without forgetting the drying process.

The most important factor regarding the appearance of Botrytis is the humidity level, which is essential for its growth. The higher the environmental humidity level, the more chances for our plants to be attacked by fungal diseases and pests.

The ideal temperature for botrytis growth is between 17ºC and 25ºC, though it can grow with higher temperatures. A great difference between day and night temperatures can also stimulate the appearance of Gray Mold, for humidity levels raise when temperatures drastically drop at the end of the day.

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Without a doubt, in the world of cannabis cultivation, the red spider (Tetranychus urticae) is one of the most feared and problematic insects, especially if we talk about indoor cultivation. This tiny arachnid can wreak havoc on cannabis plants, leaving significant damage in its wake that affects both the quality and quantity of the harvest, and can even ruin it if the pest is not controlled.

With its ability to multiply rapidly and its preference for warm, dry environments, spider mites represent a constant threat to growers. In this article, we will explore in detail everything you need to know about spider mites, from their life cycle to their control and prevention methods, so you can protect your plants and ensure a healthy and prosperous harvest.

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During the outdoor cannabis growing season many insects feed on our marijuana plants and can ruin the efforts of the last few months. In this article, we want to invite you to explore one of the most common and annoying pests that outdoor cannabis growers can face: caterpillars.

These small larvae can wreak havoc on cannabis crops, not only voraciously devouring leaves, buds, and flowers, but also promoting the appearance of the dreaded botrytis in those areas damaged by their bites. If you want to know how to protect your cannabis plants to obtain a successful and smooth harvest, today we will tell you everything you need to know about the prevention and control of this devastating pest.

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In recent years, the marijuana plant has become increasingly sensitive to the attack of the so-called powdery mildew fungus, also known as PM, white mold, ash, etc... It is a parasitic fungus of the erisifáceas family, which attacks the aerial parts of plants.

Although the infection is relatively easy to cure, it can have very serious consequences, since it can damage crops and make them 100% useless. In the first phase, it develops on leaves, to later move on to petioles, trunks and finally to the buds, completely destroying the resin and leaving the marijuana completely invalidated for smoking, since the spores of the fungus are solid matter that we would absorb when inhaling.

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