The cause of the latest tomato yellow fruit and its preventive measures

In the process of tomato cultivation, the phenomenon of tomato yellow fruit often occurs due to the influence of a variety of environmental factors, but once the yellow fruit occurs, it is very difficult to treat. It can only be dealt with or abandoned at a low price, resulting in greater economic losses to farmers. So what is the cause of tomato yellow fruit? How to prevent it? Come and have a look with the editor.

1. Variety reasons

Due to the influence of environmental factors such as soil, water and climate, the performance of varieties varies greatly, and some varieties perform well in some areas, but if they are cultivated by land exchange, their performance will be different.

Preventive measures: so the selection should be carried out according to the local actual situation, selecting varieties with high yield, good quality, anti-green skin, anti-yellow skin, anti-cracking fruit, anti-virus and so on.

2. the reason of fertilizer and water.

According to the observation, it is found that in the land with sufficient fertilizer and water, serious overgrowth and poor ventilation, the yellow fruit phenomenon is more serious, and there are also more yellow fruit phenomenon in the land where there is too much nitrogen fertilizer and insufficient potassium fertilizer.

Preventive measures: therefore, it is necessary to apply reasonable fertilization according to different growth periods of tomato to reduce the phenomenon of yellow fruit. More nitrogen fertilizer can be applied to promote plant growth before fruit setting, and more base fertilizer can be applied to promote fruit development after fruit setting. In addition, spraying chitin and compound micro-fertilizer and 6000 times of Aiduo harvest during fruit expansion could improve plant resistance and reduce the occurrence of yellow fruit.

3. Temperature reason

The suitable temperature for tomato growth is about 25-28 degrees during the day and 12-15 degrees at night. In the stage of tomato turning red, when the temperature exceeds 32 degrees, lycopene formation will be inhibited, and green or yellow fruits are easy to appear. When the fruit turns red, the formation of lycopene will also be destroyed by chilling injury below 8 degrees, which is very easy to form yellow fruit.

Preventive measures: tomato is a temperature-loving vegetable, the suitable temperature for growth is 20-30 degrees, the autumn night temperature had better not be lower than 15 degrees, in the afternoon to close the vent to maintain the indoor temperature. The yellow skin fruit phenomenon caused by temperature difference can hang a layer of film near the vent, so that the colder air outside does not directly stimulate tomatoes, which has a certain preventive effect.

4. Causes of diseases and insect pests

A variety of diseases and insect pests can also cause the occurrence of tomato yellow fruit phenomenon, the main diseases are virus disease, leaf mold, sooner or later blight and so on, while the main pests are whitefly, mites, Liriomyza huidobrensis and so on.

Preventive measures: timely prevention and control of diseases and insect pests, timely prevention and control of diseases, spraying chemical treatment, insect pests can be set up in the vent to prevent insect pests, hanging yellow armyworm board and chemical control and other measures to comprehensively control insect pests.

The above is the introduction of tomato yellow fruit causes and preventive measures, hope to help you, want to know more related knowledge, please follow us.