Good afternoon, my reader. The appearance of brownish-brown spots on tomato bushes is an alarming signal for a summer resident, talking about the defeat of a garden crop with a fungal disease. This pattern is especially common in damp and warm weather. Fungus-affected tomato planting should receive emergency assistance, otherwise there is a risk of losing most of the crop.
Please like and subscribe to the channel " About Fasenda". This will allow us to publish more interesting garden articles.
Why tomato bushes get sick
Tomatoes are a vegetable crop that is especially susceptible to various diseases. When brown spots appear on the leaves, the gardener must, first of all, find out what the tomatoes in the beds have suffered from. Knowing what caused their morbidity, the summer resident will be able to provide adequate assistance to the planting.
In order not to start the problem, it is required to inspect the tomato bushes daily. The measure will allow to identify signs of infection of a vegetable crop at an early stage, to prevent the spread of infection on the site.
Fungal infection of tomatoes is promoted by warm and rainy weather during the summer season, reduced plant immunity.
The disease resistance of the tomato plant is reduced for many reasons. In their list you can see:
- excessive or extremely poor watering;
- sharp temperature drops;
- thickening of the planting;
- abuse of nitrogen fertilizers, illiterate use of dressings.
What diseases lead to the appearance of rusty spots on tomato bushes
The appearance of brown or brown spots on the foliage of tomatoes is a sign of many diseases, in particular fungal ones. You can find out what kind of disease caused the deterioration of the appearance of the plants in the garden by studying other symptoms.
Cladosporium
The appearance of yellow spots in the upper part of the leaves testifies to the defeat of this disease. Below, the spots have a darker, brownish color. They tend to grow, gradually occupying the entire surface of the leaf plate.
With the incidence of cladosporia, drying and shedding of foliage on tomato bushes is observed.
This disease is very contagious, tends to spread quickly in the area. Its pathogens are very tenacious. They live in garden soil.
Planting tomatoes is infected with this fungal disease at the beginning of summer, when the temperature reaches +20 ° C. At this temperature, the pathogen of cladosporiosis awakens.
Late blight
With the incidence of late blight, brown specks appear on tomato bushes, which quickly spread over the entire surface of the leaf plate. In this case, the foliage turns black, and the plants dry out.
Suffer from infection and stems with fruits. Tomatoes infected with late blight should not be eaten.
The peak incidence occurs in the last month of summer. Infection of tomato planting with a fungus is facilitated by rainy weather, temperature drops.
Macrosporiasis
This fungal disease of tomatoes is also known under other names - dry spot, alternaria. With her, the lower tier of foliage on a tomato bush is first affected. Small specks of brownish-gray color appear there. They gradually increase in size and cover the entire surface of the plant.
Macrosporiasis is dangerous. A diseased bush may die if the summer resident does not take timely measures to save it.
Hot, windy and rainy weather contributes to the development of the disease.
Gray rot
A characteristic symptom of this fungal infection of tomatoes is the appearance of wet spots on the foliage that have a brown color.
Disease development is favored by cool and damp weather.
Methods of dealing with fungal infection of tomato bushes
Fungicidal agents, in particular copper-containing preparations, help to fight the fungus that has infected the tomato bushes in the beds. They treat both a sick vegetable planting and a healthy one in order to prevent its morbidity.
The use of fungicides for bushes affected by fungal infection helps only at an early stage of the disease. Before treating the planting with the drug, you will need to cut off all the foliage covered with brown spots.
To avoid tomato infection will help:
- preventing thickening of the planting;
- compliance with crop rotation standards;
- preventive tillage in the autumn.
It is desirable to process the garden soil with a Bordeaux mixture in the spring months on the eve of planting tomato seedlings in the beds.
Do you know why brownish-brown spots appear on tomato bushes?
Original articleand many other materials, you can find on ourwebsite.
About transplanting flowers in the fall, read the following article: Autumn flower transplant