What diseases are tomatoes prone to

Tomatoes are also one of the most common ingredients, and when grown in greenhouses they can basically be supplied year-round, but some tomato diseases are unavoidable. Below, Qinnong Web introduces some of the more common disease situations so you have some understanding, and when you run into them you will know what is going on.

1. Hollow heart

The symptoms of hollow heart in tomatoes are not obvious, and more often you may have to press and squeeze them yourself. It occurs mostly in winter, and is prone to appear when the temperature varies greatly and nutrition is poor. When the plant is stunted, you can pick a few at random and test them; 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. Rib rot

This is also one of the more common diseases, where you normally see something like scar-shaped marks on the tomatoes. When it occurs it is very easy to identify: first there is localized abnormal color, then the color deepens, and finally a brown knife-scar shape forms, and it may even slowly spread inward. Only the affected area looks like this, while the other parts are normal. Do not confuse it with other diseases. When preventing and controlling it, be sure to watch the use of nitrogen fertilizer and not use too much, then spray the plants with a 0.2% potassium dihydrogen phosphate solution.

3. Blossom-end rot

Blossom-end rot is a disease caused by the environment, and it rarely appears when daily management is done well. The cause is poor pollination leading to poor later development, plus frequent temperature changes in the later period, so the tomato cannot develop completely. It shows as smoke-like spots appearing at the bottom of the tomato, slowly becoming stiff and dry, then spreading over the whole fruit. The main thing is to do the early prevention work well; in the early stage you can use 0.3% potassium dihydrogen phosphate for prevention and control, and in the later stage do the management work well.

4. Gray mold

This is a disease that does relatively great harm to the fruit, and it spreads very quickly after onset, 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 soft-rots, and finally molds, 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; be sure to spray thoroughly at the removed affected areas.

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 you must manage properly, and do not still hold the attitude of planting and then ignoring it, as this easily leads to reduced yield.