You know this is a big issues for me. I think that many of us gardeners would like to have crops that just flourish. Yet for reasons unknown to us many of our plants end up with some sort of disease. There are two different types of bacterial disease. One is abiotic (non living). Abiotic diseases are non contagious and are not transferred from one plant to the next. Examples of abiotic plant diseases include air pollutants such as nitrogen oxide that comes off of a cars exhaust or sulfur dioxide that come off of factories. Then we have biotic diseases that are caused by pathogens and are often thought o as infectious because they can be spreed between plants. Pathogens may attack all types of plant tissues to include but not limited to stem, leaves, root, fruit and seed and can cause many disease types ranging from blight, root rot and wilt to name a few. Most plants are immune to pathogens, however not to all. So the plant is susceptible to one type or an other.
Organisms that make plants sick are called pathogens. Pathogens are responsible for causing most plant biotic which included viruses, bacteria, fungi, nematodes to name a few.
Viruses are intracellular (inside the cells) pathogenic particles that infect other living organisms. They live off the host’s nutrients.
Bacteria are microscopic, single-celled organisms that reproduce asexually by binary fission (one cellsplitting into two).
Phytoplasmas are a certain type of bacteria that lack a cell wall.
Fungi and Fungal-Like Organisms fungi and fungal-like organisms (FLOs) cause more plant diseases
than any other group of plant pathogens. Fungi and FLOs are heterotrophic (cannot make their own food), organisms that have a filamentous growth habit and which may or may not produce spores.
Nematodes : Nematodes are simple, microscopic, multi-cellular animals-typically containing 1,000 cells or less. They are worm-like in appearance but are taxonomically distinct from earthworms or flatworms
For an infectious disease to develop there must be a susceptible host, a pathogen capable of causing disease, and a favorable environment for pathogen development.
In order for pathogens to survive the following must occur.
come into contact with a susceptible host
penetrate the host through either a wound, a natural opening or via direct penetration of the host
establish itself within the plant
spread to other plants
survive long periods of unfavorable environmental conditions in the absence of a t host.
How to fight aganist plant diseases
Unfavorable conditions for plant diseases
Stress on plants can lead to diseases. Winter time is normally stressful to plants, so please make sure that you are taking propper care of your plants during these cold times.
Too much too little or irregular watering can cause stress to your plants as well. This can predispose them to bacterial infection.
Other items that cause stress to your plants can included low light intensity, temperature going too high up or to low, poor soil drainage as well as aeration, or if the pot is too big or too small for your plant.
Bacteria is normally present on your plants surface and will only cause a problem is the conditions are favorable. So remember to check for crowding, humidity as well as aeration. These are some of the ways that we can stop the diseases that attack our plants before they have the time to grow and multiply.
I hope that this helped some of you out there. I have a tendency to over crowd my garden and I have to work on that. I just want to be able to get the most out of my garden that I can that I end up with sickly plants. I also tend to have this problem if it is with a crop that I have never experimented with before and just not sure how big they will get as this past summer my tomatoes plants grew well over 8 feet tall.
Please feel free to share your thoughts and ideas as well.
Plantstay your plants will love you for it.