Tomato flower face disease how to prevent

Diagnosis of illness This is a physiological disease, also known as tendon rot, strip rot, and rot, which mainly damage the fruit. Commonly there are two types. Tomato tendon rot is generally not seen on stems and leaves, but the stem is cut at a distance of 70 cm from the root. The brown culprit tissue of the tomato stalk can be seen to have been damaged, resulting in the appearance of the above symptoms. Viral diseases vary from place to place.

The appearance of tomato face disease in tomato is closely related to the unfavorable conditions such as temperature and nutrient supply.

Symptoms show a red and green fruit, uneven coloration, and the longitudinal section of the fruit shows that the vascular bundle is brown.

Etiology This is a physiological disease. The extent of the damage depends on the species, the number of hours of sunlight, the intensity of the light, and the proportion of nitrogen, phosphorus, and potassium in the soil. When the temperature is high, this type of disease is likely to occur.

Control methods

Mainly in the management efforts, appropriate increase in light, scientific determination of sowing, planting period, the use of formula fertilization, the above-mentioned symptoms of the disease can be sprayed to restore multi-element fertilizer.

1, the application of humic acid fertilizers or biological fertilizer or fully cooked organic fertilizer, pay attention to the proportion of nitrogen, phosphorus, potassium should be coordinated, and less nitrogen fertilizer, potassium fertilizer, appropriate increase in the amount of application, especially in fruit growth and development.

2, small water pouring. Keep the soil dry and eat less.

3, the temperature difference between day and night should not be too large. Should pay attention to increase the temperature of the greenhouse, and to ensure a certain temperature difference, but not too large, the general daytime temperature control below 30 °C, at night to 12 °C ~ 18 °C appropriate.

4, pay attention to pruning. Plant density should not be too large, we must ensure that the shed ventilation and light transmission, so that the chance of plant rot tend to decrease.

5, spray leaf fertilizer. Can spray boron, calcium compound fertilizer.

After the appearance of tomato flowers, the use of hormones such as erythromycin is not very effective. It will also affect the quality of tomatoes. It is best not to use such hormones for treatment.

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