Do you know what damping off is?
It would be best if you studied this article, as damping off could affect a high percentage of the seedlings that you are trying to grow. As such, you could use a large number of plants. Let’s go through it.
How damping off is caused
The plant becomes dampened by fungi and fungi-like organisms such as Pythium, Phytophthora, Rhizoctonia, and Fusarium that are growing in the soil, causing seedlings to die and fall off the plant.
There are a number of reasons that cause seedlings to become damp or infected with damping off, depending on their location, the quality of the air they are exposed to, or how thickly the seeds are planted.
Therefore it stands to reason that there is a distinct possibility that the problem will affect seedlings sown under glass or indoors too. early, but it may also affect seedlings outside.
When light levels and temperatures are low during the spring and seedlings are growing slowly, damping off has a particularly damaging effect, but it can occur at any time.
· A small number of seeds may not germinate (pre-emergence damping off)
· When the young plant is affected by white fungal growth (post-emergence damping off), the plant collapses.
Non-chemical methods of control
The reason fungicides do not currently control that damping off is that they cannot be prevented.
· Commercial compost, which typically does not contain damping off organisms can be used to raise seedlings. To ensure that pathogens are eliminated, steam sterilization of homemade compost should be considered.
· It is advisable to raise seedlings in new pots or trays whenever possible. In case they have to be reused, it is important to brush off the soil, wash them and preferably disinfect them with Jeyes Fluid. Items that are wet should not be stored. If a pot or a tray has been exposed to dampness in the past, reusing them is never recommended.
· It is advisable to thinly sow seedlings in order to avoid crowding them
· Watering seedlings by using the mains water supply should be used whenever seedlings are planted in a container or tray. It is recommended to cover the water butt if using rainwater to prevent the entry of leaves and other organic matter, which may harbour some damping-off pathogens.
· Make sure not to overwater your plants.
· Make sure that seedlings are well ventilated in order to reduce humidity
· Waterbutts and greenhouses should be cleaned regularly. Water tanks or butts that have been subject to damping off or have grown algae should be cleaned and refilled with a proprietary butt cleaner after they have been thoroughly cleaned
Chemical methods of control
It is not possible to control dampness with the use of fungicides.
Soil is home to a large number of fungi-like organisms called Phytophthora and Pythium. Rhizoctonia and Fusarium are also true fungi found in the soil, and they are considered important to the ecosystem.
The delicate tissues of young seedlings can be infected and killed by many of these organisms and some others as well. It is possible for the seed to become infected before it emerges (pre-emergence damping off), which will lead to uneven emergence. In addition to infections occurring during emergence,
seedlings can also be infected after emergence, especially in situations where they are heavily crowded, resulting in rapid collapse. There may be a visible growth of mould on the rotting plants that indicates a causal organism’s presence.
Check out the study by the University of Minnesota re damping off
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