What are the common diseases of tomatoes? Latest summary

Tomatoes are also one of the most common ingredients for everyone. When grown as greenhouse vegetables, they can basically be supplied all year round, but some diseases of tomatoes are unavoidable. Below, Qinong Network introduces some of the more common disease situations so everyone can have some understanding, and when they run into them, they will clearly know what is going on.

1. Hollow heart

The symptoms of hollow heart in tomatoes are not obvious. More often than not, you may need to press and squeeze them yourself. It mostly appears in winter, and is prone to occur when the temperature changes greatly and nutrition is poor. When the plant is growing poorly, you can pick a few to test. When you find an obvious sunken feeling when pressing, it is most likely this. It shows as a hollow state inside. At this time, be sure to control the temperature and fertilize in time, and later it can still grow back.

2. Stem rot

This is also one of the more common diseases, which is the scar-like thing everyone usually sees on tomatoes. When it occurs, it is very easy to identify. First, there will be abnormal color in a local area, then the color deepens, and finally it forms a brown scar-like shape, and may even slowly spread inward. Only the affected area will be like this, while the other parts are normal. Do not confuse it with other diseases. When preventing and controlling it, be sure to pay attention to the use of nitrogen fertilizer, do not use too much, and then spray the plants with a 0.2% potassium dihydrogen phosphate solution.

Blossom-end rot is a disease caused by the environment, and it rarely occurs when daily management is in place. The reason is poor pollination leading to poor later development, plus frequent temperature changes in the later period, which prevents the tomato from developing fully. It shows as smoky spots appearing at the bottom of the tomato, slowly becoming hard and dry, and then spreading over the entire fruit. The main thing is to do the early prevention work well. In the initial stage, 0.3% potassium dihydrogen phosphate can be used for prevention and control, and in the later stage, do a good job of management.

4. Gray mold

This is a disease that is relatively harmful to the fruit, and it spreads very quickly, so it must be dealt with in time. It is mostly caused by pathogens. When it occurs, it is mostly concentrated at the stem end of the tomato. The stem end begins to turn brownish yellow, then slowly softens and rots, and finally becomes moldy, causing the fruit to fall off. Directly remove the affected parts, and take them out of the field, then use a 2000-fold dilution of 50% procymidone wettable powder for prevention and control. The removed affected areas must be sprayed thoroughly.

The above are some common diseases of tomatoes. These diseases mainly harm the fruit, so everyone must pay attention to prevention and control. Nowadays, planting emphasizes scientific management, so when planting, management must be in place. Do not still hold the mindset of planting and then ignoring it, as this can easily lead to reduced yield.