The swarm spores germinate best at a temperature of around 15 degrees C., while the rest spores start growing in the warmth, so at about 28 degrees C. There are two types of spore formed: swarm spores and rest spores. The spores of Pythium are only spread via water. Pythium is a mould, which thrives best in wet and moist environments. In the beginning, the brown scale can easily be removed, later the rotting process goes even deeper into the base of the plant. Pythium can be recognized by the way the bark turns brown at the base of the stem. We don’t have to spell out what that means. In serious infestations of Pythiumm, the plant gets ‘toppling disease’. Bigger, healthier plants are much less susceptible to Pythium. It usually attacks young plants and clones. This mould leads to root rot and rotting of the lowest section of the stems. The most usual cause and a very common fungal disease in cannabis is Pythium. The causes of bud rot include dead leaves falling with the arrival of autumn, spiders webs, the larvae and cocoons of insects. When this takes on a strange colouration (see photos below) and is effortlessly pulled free from the bud with a gentle tug, then you can be 99% certain that there’s rot inside that bud. One way of catching the presence of bud rot in good time is to keep a close eye on the leaf that grows out of the bud. Recognizing Bud Rot, also known as Botrytis Cinerea or Grey Mould), is something every grower needs to learn. Sealing-off cannabis plants helps to avoid involuntarily introducing sickly invaders. Poor hygiene in the growing area is an open invitation to pathogens. Good housekeeping goes a long way with weed. Second, it must be quarantined as much as possible. First, the grow space should be clean and tidy. But even if you grow outdoors, two basic principles can and should be applied to every grow-op. Indoor growers have far greater control over the environment. That being said, you can take a number of preventative measures to increase your chances of a healthy, trouble-free crop. Unfortunately, whether you choose to cultivate cannabis indoors or outdoors with the greatest care and attention, things can still go wrong. Marijuana certainly ranks amongst the hardiest of crops and grows on every continent assuming the pyramids hidden in Antarctica have a few grow rooms. Examine your unhealthy cannabis plants and carefully read the next section for a solution. This can only be accomplished if you know what to look for. It’s the grower’s responsibility to accurately diagnose and apply treatment. Your cannabis plants can’t tell you what’s wrong with them.
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