Damping off in cannabis crops: what is it and how to prevent it?

cannabis art

Damping off in cannabis crops: what is it and how to prevent it?

Few growers may have gotten rid of the so-called Damping Off , also called fungal wilt seedbed disease. It is quite common, from one moment to another we find our small seedlings lying on the substrate and with the stem bent. And in 90% of cases, the plant ends up dying.

It is a cryptogamic disease , that is, a plant disease that is caused by a fungus or any other parasitic filamentous organism. And not because of a specific fungus, but there can be several such as Botrytis, Phythium, Fusarium or Sclerotinia.

The spores of these fungi are generally found in all types of unsterilized substrate. Or it is enough that in a sterilized one, favorable conditions are met for its development, so that the spores invade it. Lack of ventilation, always flooded substrate, high temperatures and high humidity, are breeding grounds for all types of fungus.

Damping Off generally attacks seeds and young seedlings in their first days of life. And in the vast majority of cases in seedlings, it attacks the stem in the shallow area of ​​the substrate. With the vulnerability shown by the stem of a young plant, as we say, the plant in most cases ends up dying.


The seeds can be infected by any of the fungi that cause Damping Off. In this case it usually causes it to darken and soften, killing it even before it can germinate.

When it attacks seedlings, it produces a whitish spot on the stem at ground level. The fine stem thins, bends, and finally breaks, laying the seedling on the substrate.

By affecting the vascular vessels of the stem, the supply of nutrients and water decreases, later showing the leaves a flaccid appearance, as if they lacked irrigation.

How to avoid damping-off?

We have already seen which were the factors that most influence the appearance of this group of so lethal fungi. So we will try as much as possible to avoid them. For example, grow in well ventilated and not very shady areas.

Dark-colored pots should also be avoided outdoors, since they overheat in the sun and this temperature is transferred to the substrate. In addition, you should avoid watering in excess or doing it in the hours of sun or maximum daytime heat.

And with regard to the substrate, always use a preferably sterilized substrate. And if it is not possible, at least use a well composted substrate , since decomposing organic debris attracts many pathogens.

Can damping off be treated?

Being such an aggressive disease and that it attacks during short periods (germination and first days of the seedling), the possible treatments do not usually act in time. The best weapon will always be prevention.

It also spreads very quickly, so if several plants are grown, it is not surprising that they all have the same conditions. If it develops in one, let us fear for all the others.

It is convenient to discard the substrate of a plant attacked by Damping Off, as well as to disinfect the pot well before using it again

The Trichoderma fungus is very effective, widely used for the treatment of seeds and soil for the control of various diseases caused by pathogenic fungi.

indoor cannabis growroom

How to grow cannabis indoors according to genetics?

You could say that all cannabis strains can be grown indoors, but not all can be grown outdoors.

You could say that all cannabis strains can be grown indoors, but not all can be grown outdoors. In Atlantic climates, for example, long-flowering sativa varieties under normal conditions would have serious difficulties to finish their flowering in the months of November or December, since they are areas in which autumns are usually more like winters.

But indoors, certain varieties can be a headache for any grower, since we will struggle with a limited space in all its dimensions, mainly in height. But all this will be easier if you take into account some aspects.

Indic varieties and indic dominance hybrids

They are undoubtedly the most recommended varieties for indoors. They are usually compact growing plants and medium / low stretch. Genetics such as Northern Light, Hindu Kush, Black Domina, Super Skunk or Critical Mass are some of the most mythical varieties grown with artificial lights.

Whether starting from seed or cutting, it is very rare that they cause problems with their height or excessive growth. They are also the most appropriate for the high-performance SOG technique, although not so much for other techniques that require pruning or guidance such as SCROG or Main Lining.

They have a tendency to columnar growth and are not usually excessively branched. When starting from seed, around 4-5 weeks the plants can go to flowering, harvesting in another 7-9 weeks. The effects are mainly relaxing.

Sativa and hybrid varieties with indic / sativa dominance

They are at the other extreme, since they are undoubtedly the most complicated varieties and not recommended for beginning growers. In a short time after germination, they will show sometimes exaggerated growth. They are also highly branched plants, so an excess of plants per m2 can cause both height problems and competition between them. Haze, Amnesia, Kali Mist, AK47, Super Silver Haze or Jack Herer are great indoor classics.

Its cultivation is practically impossible if some cultivation technique is not used that limits vertical growth in exchange for promoting horizontal growth. Both SCROG, as Main Lining or Super Cropping, are the most used. Also the SOG when starting from cuttings, but taking into account that a small 10cm cutting can be transferred to flowering can exceed 50cm in the first weeks of this phase.

They are neither varieties for impatient nor for those who first of all seek production. Those with longer blooms can last up to 16 weeks just flowering, to which must be added about 5-6 weeks of growth since they also generally take longer to mature sexually than indica. In other words, in the duration of a 16-week flora cultivation of a sativa, 2 crops of a fast indica could be grown.

Indica / sativa hybrids

Indica / sativa hybrids are a middle ground. They are not as overgrown as sativas, nor are they as compact as indica. But you still have to take into account their growth, which is also usually fast and abundant. Varieties such as White Widow, Skunk or Chronic are preferred indoors.

They are suitable for both seed and cutting crops. They are usually adapted to any cultivation technique, having the same facility to concentrate the production in generous apicals in SOG cultures, or to branch and cover large cultivation spaces in SCROG or Main Lining cultures.

Flowering periods are usually around 8-9 weeks, being more typical of indica than sativas. The effects are also usually balanced, neither overly relaxing nor overly active.

can MJ cause Obesity

Is it possible to treat Obesity with the Marijuana plant?

Medical marijuana is believed to be helpful for people with various health problems, sleep problems, and stress, aiding in treatments like cancer or epilepsy. There are many possible uses of medical or therapeutic marijuana for adults, children, and even pets, and even more are yet to be discovered, as researchers believe that we are still well below the capacity of the marijuana plant. And one of the newest ideas on how to benefit from using medical marijuana has to do with weight management.

Does the marijuana plant make it thinner?

A group of scientists at Beth Israel Deaconess Medical Center suggests that marijuana may be beneficial in lowering your blood sugar level. Further research showed that cannabis can also speed up your metabolism, allowing you to burn more calories without excessive effort. And while it is a common opinion that cannabis stimulates appetite, this fact does not mean that marijuana smokers overeat on a regular basis.

The fact that some of the strains can calm the mind and relax your body enough to be very relaxed, calm and anxiety-free, which makes us not constantly want to dock the fridge. People don’t eat when they sleep, do they?

How Can Marijuana Help You Lose Weight?

The marijuana can help you lose some extra kilos. However, according to a recent study conducted by a group of researchers at Cornell University and San Diego State University, this beneficial side effect of marijuana use has less to do with marijuana itself.

Marijuana Exercises

Exercises are an integral part of the weight loss process. According to a study published in the journal Futuro Medicinal Chemistry, cannabis contains chemical compounds that are similar to the natural endorphins of the human body. Additionally, the marijuana plant has an anti-inflammatory effect, making marijuana users more likely to develop a higher pain threshold. And this means that it will be easier for you to go through a tough workout without any further hassle.

Food made with Marijuana

And thanks to some manufacturers, you don’t really need to smoke marijuana in order to get a little slimmer. There are plenty of low-calorie, sugar-free, and fat-free edible foods made from marijuana. So even though obesity isn’t on the updated list of medical marijuana-treated conditions yet, you might at least give it a try.

The importance of the specialist doctor

But nothing is impossible, and it is not necessary to treat obesity with marijuana, it is important to deal with a doctor who specializes in this matter, follow his recommendations, contact an endocrine and follow a strict diet of food and exercise, because also exercising is vitally important to lose weight and stay fit.

girl smoking THC

Marijuana can improve women’s health

There are many possibilities to do business with marijuana, and every day there are new opportunities to work with the marijuana plant. Marijuana-related products improve and new products come out that can help us in some of our needs, especially in relation to women’s health. Women are a very high percentage when it comes to marijuana use, it is not the same as the male gender but it is close.

In both women and men, the cannabinoids in marijuana interact in the endocannabinoid system and play a very important role in our health. This endocannabinoid system has a very important role in the receptor systems, influencing the central and peripheral nervous systems, altering memory, mood, pain sensation, appetite.

Most important cannabinoids THC and CBD

Marijuana and the cannabinoids associated with it, the most important being THC and CBD, can affect many parts of the human body, improving them in some cases and making them worse in others, depending on the use that is given.

If marijuana is treated with respect, moderate and disease-oriented consumption can do a lot of good for the body. But if the marijuana plant is used for recreational use without any control, in an excessive and abusive way, the consequences can be disastrous.

Marijuana and its use as medical marijuana is more than proven

Marijuana and its use as medical marijuana is more than proven, being able to help the endocannabinoid system. The doses of medical marijuana for certain discomforts can vary according to the person, since there are people who with a low dose is more than enough and others are not worth it. Also depending on the variety of marijuana that is being consumed, that is why it is important to have medical help, but in the topic of doctors and marijuana is not yet highly developed.

Marijuana can help in the physical state of people

Marijuana can help in the physical state of people, since it can improve motivation when practicing a sport. The THC of marijuana can accumulate in body fat, making it necessary for every time we exercise and the body needs energy to take it from the accumulated fat and we can also take THC making us improve the performance of our training. There are some varieties of marijuana that can help when doing sports such as Kalimist, Superilverhaze, Destroyer, Hawaiian snow, cotton candy and critical super silver haze.

Marijuana to be able to replace the dream

We can also take a strain of marijuana to be able to rest the dream and after exercising take it to enjoy a restful sleep. Taking this type of marijuana varieties we will be able to prolong the sleep phase, thus improving, repairing the body of the exercise done and making it rest.

We can choose sedative varieties that relax and help sleep like Taskenty, White Rhino, Great White Shark, Sensi Star, Medicine Man from the Mr. Nice seed bank, the latter is called the Valium of marijuana.

Can help restore physical strength after a workout

The marijuana plant depending on which variety of marijuana you take can help restore physical strength after a hard workout. We can choose a variety of relaxing marijuana that consumed before going to sleep can prolong our deep sleep phase, thus improving our rest, thus making our body recover and gain more strength through rest.

The marijuana plant can relieve menstrual pain

Some varieties of marijuana are excellent for the relief of menstrual pain, since many women experience real pain every time they get it once a month. In many cases, medical marijuana can provide a solution to the problem that many women have. With just a few puffs of marijuana it is possible to turn around the harsh menstrual pain.

In the market there are products made with marijuana that help not to have these effects, you can vaporize marijuana and avoid those pains, or simply take a marijuana infusion and we will achieve the same result.

Well applied and well used marijuana can help a lot of people who need it, making them feel much better and being able to alleviate their ailments. We always say the same thing, use marijuana as long as our doctor is aware of it and can follow us up.

The most resistant cannabis varieties

The most resistant cannabis varieties

The resistance of different marijuana varieties depends on certain specific genetic characteristics. Obviously, both growers and seed banks try to breed the most resistant varieties to obtain crops that are easier to control in all respects.

Regular, feminized and auto-flowering

In general, the regular varieties are considered the most resistant. However, there is a wide variety of feminized and auto-flowering seeds that are also very resistant to pests, bad weather or excesses and deficiencies of various kinds.

Regardless of whether the plant is regular, feminized or auto-flowering, the hybrid varieties are considered more resistant than the so-called “pure” ones. This is because hybrids can combine characteristics from several genetics to bring together the best features of each genetics. In addition, the so-called hybrid vigour makes these descendants more vigorous in their vegetative development than their closest parents.

The most resistant cannabis varieties

Indicas and sativas

It should be borne in mind that Indicas and Sativas genetics have specific varieties that make them more resistant to certain problems. For example, sativa varieties have a flowering that, because of its specific characteristics, is much more resistant to fungal pests. On the other hand, Indica varieties have a compact structure that makes them more resistant to airborne shocks. In addition, Indicas also resist better nutritional and irrigation deficiencies, while sativas need more irrigation and more nutrition.

This makes some hybrids have indicas characteristics in terms of structure, but a sativa flowering that makes it more resistant to rain and the consequent appearance of fungi.

5 more resistant varieties

Power Plant

This genetics of South African descent has been bred since the 1990s to enhance its production and resistance to fungal pests. An ideal variety for growers looking for ease of cultivation and maximum yield.

The most particular feature is that it has obtained a sativa flowering resistant to mold, but shorter than usual in the sativas. In just 8 weeks of flowering, Power Plant will be ready to harvest, with huge buds that will give off a powerful kush smell.

Colombian Gold

This variety is a genetic lineage from Colombia that has been used to produce countless hybrids. Colombian Gold has adapted for centuries to the climate of the mountains of northern Colombia, making it very resistant to cold, humidity, wind and rain. In addition, in production it does not remain behind being a good option to make profitable your culture and to enjoy the sweet and humid flavor of this variety.


This genetics is a mostly Indian hybrid, of fast flowering, very resistant to all kinds of pests and of vigorous growth. In addition, its vegetative structure is compact and highly branched. Ideal for commercial crops and for the reproduction of cuttings. If you are looking for a resistant, productive and very profitable variety, that is without a doubt Matanus-k.

Super Silver Haze

This mythical genetics is the result of combining the best characteristics of well-known classics such as Skunk, Haze and Northern Lights. The fruit obtained is a very productive variety, resistant to pests and diseases. Flowering is a little longer than its competitors in this list, and requires more feeding; but its taste of sugar cane and its huge buds will make the wait worthwhile.

Sweet Thai

If we’re talking about resistant strains, Sweet Thai couldn’t miss it. This genetics comes from a lineage that has evolved over hundreds of years in the Thai rainforests, with high humidity, heat and pests of all kinds. As a result, it is a strain that can withstand whatever is thrown at it. The only problem is its long flowering period, which can last until December. Therefore, if you grow in a geographical area with short summers, you have a serious problem to get to grow this magnificent variety.

Medical marijuana for cancer patients

Medical marijuana for cancer patients

Marijuana, or also known as cannabis, has always been a subject of controversy, especially in the field of traditional medicine, since in recent years a wide variety of options have emerged for consuming the plant and obtaining benefits in the body, especially in people suffering from cancer.

Chemical compounds of Marijuana 

First of all, it is important to understand its origin and natural composition, which is why we will now talk about the plant and then the benefits that certain components bring to the health of many people.

The main chemical compound that predominates in the cannabis plant is tetrahydrocannabinol, known by the acronym THC. However, the plant is home to more than 400 different chemical compounds among which we find 66 cannabinoids different from THC, some of the most representative being the following:

Cannabidiol or CBD. It has an anxiolytic and relaxing effect.

Cannabinol or CBN. Its consumption usually implies a reduction of the heart rate and some anticonvulsive effects. It has hardly any psychoactive action.

Tetrahydrocannabivarin THCV

Cannabigerol or CBG. It does not have psychoactive properties of any kind but it does have important antibiotic properties. It also serves to reduce intraocular pressure.

Cannabicromene or CBC. It has anti-inflammatory and sedative effects.

All these chemical components of cannabis cause different effects from THC but they all have one thing in common: they act directly on our central nervous system when we consume them.

Medical use of CBD for cancer patients

Medical use of CBD for cancer patients 

However, the use of cannabidiol, in the form of an extract or oil of CBD, has gained much attention in recent years because of its potential therapeutic properties, especially for the management of the complications and symptoms inherent in different types of cancer. 

In the United States, the use of medical marijuana is legal in 33 states. 

“Cannabidiol offers hope for a non-toxic therapy that can treat aggressive forms of cancer without any of the side effects of chemotherapy,” says McAllister, who is seeking support for clinical trials of the marijuana compound in breast cancer patients. Cannabis and Cannabinoids (PDQ®)–Health Professional Version

While marijuana becomes a topic of discussion because of its chemical components and recreational use, it is clear that on a medical level its properties are promising, even in very advanced cancer cases, not only for treatment but also for prevention.

Its use in traditional medicine is resonating more and more and is being studied to obtain more precise results and to start applying them in certain types of cancer and treatments. If there is one thing that is indisputable, it is that within the medical scientific community, the discovery of the anti-tumour properties of cannabinoids is being increasingly recognised as a seminal advance in cancer therapy.

Medical marijuana, everything you need to use it 100%

Medical marijuana, everything you need to use it 100%

The benefits of the therapeutic use of marijuana are well known. Although prohibition makes it difficult to conduct scientific studies on medical marijuana, there are more and more that corroborate its usefulness for different pathologies.

The benefits of the therapeutic use of marijuana are well known. Although prohibition makes it difficult to carry out scientific studies on medical marijuana, there are more and more that corroborate its usefulness for different pathologies.

Furthermore, although they cannot be used as the results of a scientific study, we have the experiences and testimonies of many patients who claim to have been able to alleviate the effects of their illnesses thanks to Cannabis.

Medical marijuana, everything you need to use it 100%
hands doctor with marijuana medical cannabis icon

Medical marijuana: a brief history

Cannabis is recognized as one of the first plants cultivated and used by man. In fact there is evidence of its use in China 4,000 years before Christ.

During the 19th century it was introduced into Western medicine by the French psychiatrist Jacques-Joseph Moreau and the Irish doctor William B. O’Shaughnessy.

During the 20th century, the prohibition of the use of Cannabis, both recreational and medicinal, is materialized. The persecution of Cannabis begins in the USA with the publication in 1937 of the Marijuana Tax Act and extends throughout the planet with the 1961 UN Single Convention on Narcotic Drugs.

Medical marijuana: the cannabinoids

It is the cannabinoids, substances present in the resin of Cannabis, that provide the medicinal effects of marijuana. Possible therapeutic benefits of terpenes and flavonoids (odorous and taste substances) are also currently being studied.

Of the cannabinoids, THC was the most studied, as it is responsible for the psychoactive effects of marijuana. Many therapeutic applications for CBD are also known today.

For this reason many of the most sought-after strains of marijuana currently for medical use are known to have a 1:1 ratio. These varieties produce plants that contain similar percentages of THC as CBD.

Synthetic cannabinoids, such as Nabilone (Cesamet) in the case of THC, have been manufactured. But it seems that for many diseases, it is the combination of all cannabinoids in the plant that produces the medicinal effect.

According to information disclosed by Canna Research Laboratories, the differences between the characteristics of the main cannabinoids present in marijuana

Cannabigerol (CBG)

  • The first cannabinoid produced by the plant
  • Precursor of CBD and TCH.
  • Non-psychoactive.
  • Predominantly soporific.
  • Cannabidiol (CBD)

It is created by degradation of the CBG.

  • Precursor of THC.
  • Slightly psychoactive.
  • Suppresses feelings of fear and panic.
  • Reduces the effect of THC

Delta-9-tetrahydrocannabinol (THC)

  • It’s created by CBD degradation.
  • CBN precursor.
  • Main psychoactive component of marijuana.
  • Its effects can be: relaxants, stimulants or hallucinogens and raise the pulse

Cannabinol (CBN)

  • It is created by degradation of THC.
  • Present in poorly preserved plants or cut too late.
  • Slightly psychoactive.
  • Relaxing.

When cannabinoids are in the plant it has an acid form, a bud does not contain THC but THCA, which is much less powerful.

The difference is that THCA has a tail composed of a carbon molecule, which must be lost to become THC. This is known as decarboxylation. The easiest way is to heat it up to a certain level. This is easily done with cannabis that’s smoked, steamed or cooked.

If, for example, you want to consume the buds directly, without burning or cooking them, it is recommended that you leave them in a bain-marie for two hours to decarboxylate them, transform the THCA into THC and thus achieve the same effect using a smaller amount of marijuana.

Marijuana Growing Guide for Beginners - Part 1

Marijuana Growing Guide for Beginners – Part 1

The beginner’s guide to growing marijuana is simply a general review of the first steps and concepts you should learn to take in order to obtain a quality harvest without much effort, but above all without much knowledge on the subject.

We have created this post mainly thinking about people who would like to start growing, but don’t know very well where to start or what the steps are when it comes to growing. In this way and in a very simple way, everyone can learn to cultivate without being an expert in the field.

Now we are going to take the first steps, so take a pen and paper and make notes on the most important aspects.

Outdoor cultivation or indoor cultivation

The first choice you should make is the type of crop you are going to grow, indoor or outdoor seeds. Since this choice will directly condition the marijuana seed you must grow. In the market there are varieties designed specifically for indoor cultivation and the same goes for outdoor cultivation, which is why it is so important.

Marijuana seeds for indoor cultivation

The most recommended genetics for indoor cultivation are usually 100% Indica strains, hybrids with a high percentage of Indica or hybrids with a high percentage of Sativa developed for optimal indoor cultivation. Indica varieties are usually chosen, as they are the fastest flowering. Sativa varieties can be grown indoors, although it is necessary to have previous experience.

Outdoor Marijuana Seeds

The most recommended genetics for outdoor cultivation as a rule, are plants (regardless of the percentage of sativa / indica) of great resistance to attack by pests and fungi. Since in this type of crop plants are continuously exposed to the weather and any insect that passes through the area.

On the other hand you can also grow most of the genetics that exist on the market, although they have been developed specifically for indoor cultivation. In this type of crop can be grown sativa varieties without having the same disadvantages as indoors, but will have to arm themselves with patience, since the flowering period of these is usually more than 10 weeks. So they are usually ready for harvest from April.

What variety of marijuana to plant?

The second choice you should make is which variety of marijuana you want to grow, which will depend on your needs and where you are going to plant it. There are thousands of varieties of marijuana on the market and each one has different characteristics and a different way of growing it.

What variety of marijuana to plant?

In this aspect you can differentiate between, medical marijuana varieties and recreational marijuana varieties. Within these you can find auto-flowering plants, which flower automatically after a certain time of growth. And non-auto-flowering or photo-dependent plants, which flower when the number of hours they receive decreases with the arrival of autumn.

There are two versions of marijuana on the market that encompass all the others, we mean the regular marijuana varieties and the feminized marijuana varieties. Regular plants are characterized by producing both male and female plants. This fact can slow them down a lot in cultivation and lose valuable time for nothing. Feminized plants produce 99% female plants, so if you are looking for a variety to grow, the first thing you should choose is a feminized variety. This will save you time and money.