The greenhouse method of growing vegetables and other crops does not guarantee that you will not have to face the characteristic diseases and pests. So prevention of phytophthora at the start will be one of the most effective methods in greenhouses to protect their tomato crop from losses. To ensure that all efforts are not in vain, you should familiarize yourself with the mechanism for the occurrence of this problem and then find ways to prevent this natural disaster.
The cause of phytophthora on tomatoes
So, the problem lies in two main points. First, it is important to understand where the root cause lies, in general - the fungus spores. Fungus perfectly tolerates winter frost in potato tubers. With a warming mycelium safely begins its journey. You put it in the greenhouse on the garden tools, with the infected soil, and the fungus feels great in the seeds of Solanaceae. So, in the circle of the likely peddler, we can determine both the soil itself and the planting material.
Further concerning the mechanism of infection. Why is the plant not sick, or rarely sick, at the stage of active growth? Yes, because almost all of them have excellent immunity to this kind of diseases. But with the onset of maturation, all the forces rush precisely on the formation of the fetus, so it is simply impossible to cope with the fungus. Very often, such problems arise with varieties, in which the characteristics indicate a harmonious maturation and high yield.
How to protect tomatoes from phytophthora?
Now that we understand the mechanism of infection on tomatoes, we can tackle the most effective remedy for phytophthora. Nothing to invent here is not necessary and it is enough to simply proceed from all of the above. So, what to process tomatoes for prevention of phytophthora and what can you do here:
- if the beginning of mass destruction occurs approximately in the middle of summer, then it is logical to give preference to early varieties, this will save tomatoes from phytophthora, since we will harvest the crop before its mass distribution;
- do not want early varieties, then we choose only those that are highly resistant to this disease;
- in search of how to treat tomatoes, pay attention to the long-established and proven method for prevention of phytophthora with potassium permanganate for seeds (by the way, own seeds are only used if they have three years);
- To protect tomatoes from phytophthora can be both treatment and more radical methods, namely, the destruction of all pegs and plant remains, removing the top layer of the soil by at least 5 cm.
If you are determined to protect tomatoes from phytophthora, how should you disinfect the greenhouse after harvesting chemicals or sulfur beads, it's a good idea to steal the soil. As a result, the prevention of phytophthora on tomatoes is reduced to the processing of planting material in the greenhouse, its careful selection, processing of the greenhouse and soil.