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what is gray or grey seed in marijuana

Not only attacking the plant only when it is alive, botrytis may also appear once it has been harvested. When a harvest is not carried out under good hygienic conditions, it can infect the plant at this time. Then it usually decomposes the dry, stored buds, and can be transmitted through the seeds. As it affects compact, heavy buds more often, the perfect places for this fungus to flourish, those cannabis strains lacking these characteristics will be less susceptible to Botrytis.

In more advanced cases one can see the fungus develop on the surface of tissues, forming a grey mycelium. As the disease progresses the foliage becomes necrotic. The affected area is dry to the touch and usually falls apart. Of a greyish-white to teal colour, the fungus usually attacks the densest and fullest parts of the flower, but it can also appear on stems, leaves and seeds. Thus, we advise looking for leaves that appear to mysteriously dry up, or for dry stems that are dying, or even dry, brown buds with a dead look.

Another thing to remember to prevent botrytis is the elimination of all petioles remaining on branches when removing damaged leaves, as dead and decaying foliage favours the development of botrytis.

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One of the keys to preventing botrytis correct and constant observation of one’s plants, to avert a potential outbreak after the first symptom. But, how do you identify Botrytis? It is a fungus that is very easy to spot. Able to affect any part of the plant (roots, stems, leaves, buds), it is identifiable by its colour and texture, as these areas turn brown or grey, and exhibit a dry, lifeless appearance.

Botrytis, also known as grey mould, is one of the most common and damaging fungi that can attack your cannabis plants. It usually occurs when temperature and humidity levels are high. Spreading rapidly, it is capable of destroying a cannabis crop in no time. Hence the importance of adequately preventing and eradicating it in time, as botrytis is capable of ruining months of work in just days. We take it step by step so that this fungus does not come between you and your crop.

In fact, this grey mould spreads very rapidly in indoor spaces, able to infect a whole growing room in less than a week when conditions favour it. So, do not underestimate the importance of cleaning and sanitizing everything that comes into contact with your plants.

When it comes to preventing botrytis, cleaning is also relevant. It is a good idea to sterilise your growing tools every time you use them, as in this way you will decrease the likelihood of this grey mould appearing. The fungus is transported by air, and by contaminated hands and tools, hence the importance of sterilisation.

Some smokers might be pleased to see some cannabis seeds in their bag, and might think themselves lucky. However, finding seeds in a bag is bad for various reasons. For one, this means the grower has messed up and allowed their female plants to be pollinated by an invading male. When flowers are pollinated, they stop producing THC-containing resin and divert their energy toward producing seeds. Secondly, the seeds will have added to the overall weight of the bag, which means less weed for your buck.

The fact that cannabis seeds can vary in appearance has led some growers to think that the size, shape, or color of a seed dictates its quality.

It’s important to only conduct this test if you are planning to germinate the seeds immediately afterwards. The viable seeds that sunk to the bottom of the glass will have taken in water, crossing the membrane of the seed and signalling that it’s time to come to life—activating germination.

Germinating All Your Seeds Regardless

If you are still unsure about the quality of your seeds after analysing their appearance and toughness, it’s time to put your lab coat and goggles on. Well, not quite. This test is extremely easy and only has two possible outcomes. Fill up a drinking glass or glass jar with water (preferably spring or distilled) and place your seeds on the surface.

A solid way to obtain great seeds is to find a reputable seed bank. These companies pride themselves of their breeding skills and make sure that their customers receive exactly what has been advertised. They have reputations to cater to, so delivering anything less would only harm their image.

We hear this question all the time from clients and beginner growers, and the answer is a resounding no. There is simply no way to tell the sex of a cannabis seed just by looking at it.

However, slight patience is required when conducting the float test, as results are not immediately apparent. You’ll have to wait for approximately 1–2 hours before confirming the results. Some good-quality seeds will need adequate time to absorb enough water for them to sink. Use this time to go water the garden and get some much needed pruning done. Upon your return, any seeds that remain on the surface are most likely not viable and won’t be worth further time and effort.

Here you have a list of marijuana strains resistant to fungus , like Green Poison, High Level or Philo Skunk / Gokunk from Philosopher Seeds.

Pruning the lower part of the plants is also advisable, since it is where we find the higher humidity level. Outdoors, avoid placing your plants in humid zones, it is always better placing them on the most sunny space.

Botrytis Cinerea is a fungus that colonises healthy plant tissues (parasitism), infected tissues (opportunism) and also dead ones (saprotrophic nutrition).

Which are the most resistant strains to Botrytis?

Gray Mold is clearly visible

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 .

To do so, we can either improve our ventilation system (air extractor, interior fans, etc.) and/or use a dehumidifier.

Outdoors, Botrytis attacks can be devastating, especially in crops that may take a little longer to flower, as well as in those plants that develop hard and dense buds. During Autumm most nights are humid and cold, what greatly favours the appearance of fungal attacks.