Strawberries are prone to physiological diseases such as deformed fruits during the fruiting period. It is common to see the shape of the fruit abnormally disorderly. Sometimes, it is an albino fruit with an abnormal color or abnormal color, and a rigid fruit with a thin fruit that does not grow long. The occurrence of these phenomena during the fruiting period will affect the quality and yield of strawberries, and reduce the planting efficiency. So how can we prevent the appearance of deformed fruits in production? First of all, we need to understand the manifestations of malformed fruit and the reasons for its formation. 
Messy fruit
Fruit is a fruit with an irregular shape, such as uneven, flattened and irregular. The most common ones are: 1 strawberry stalk with 2 strawberry fruits connected to it, also known as "double fruit", if 3 strawberries are connected to it, it is called "cockscomb" or "poached fruit". The main reason for the disorderly fruit is abnormal pollination during the flower bud differentiation stage. In winter and early spring, low temperature and cloudy days can easily lead to pollen being hindered in growth, affecting subsequent pollination and fruit development, and leading to the occurrence of disorderly fruits. In addition, during the formation of pollen and flowers, insufficient nutrients, wrong medication, and excessive use of nitrogen fertilizer will affect the development of flowers and subsequent pollination. When the shed is closed for a long time and the humidity is too high, the anthers will not crack or pollen poorly and crack, and it will also cause the flowers to not be pollinated properly. 
Prevention of Disorderly Fruits】 In winter, special attention needs to be paid to strengthening the regulation of temperature. It is best to control it at 23-25 degrees Celsius during the day and around 8 degrees Celsius at night. It is best to control the humidity at 50 to 60%, avoid watering on cloudy days, and properly ventilate and drain moisture if it is too high. At the same time, attention should be paid to supplementing boron, zinc, calcium and other trace elements to ensure the quality of pollen and the development of flowers. After entering the flowering period, it is necessary to avoid spraying as much as possible, which can reduce the appearance of disorderly fruits. Albino fruit
The albino fruit of strawberry is also known as albinism, which refers to the inability of strawberries to color normally after they turn green during the ripening period, resulting in white, pale yellow and other variegated colors on the fruit surface when ripe. The inside will also have a pink or white variegated color, and these strawberries will also have a lighter flavor and a softer texture. Strawberries have less light and less sugar accumulation during the fruiting stage, which are important reasons for the appearance of albino fruits. At the peak of fruiting, the weather is warm in the early days, but sudden and continuous rainy days can cause albino fruits to appear in large numbers. When nitrogen fertilizer is used excessively, high nitrogen will make the sugar turn to leaf growth, and the sugar obtained by the fruit is missing, and at the same time, in the fruit stage, the lack of phosphorus, potassium, calcium, magnesium supplementation, the number of fruits and the number of leaves, and the stunted growth of leaves, will directly or indirectly lead to low sugar in the fruit and cause albino fruit. 
Prevention of albino fruit】 Increase the application of organic fertilizer, do not apply excessive nitrogen fertilizer, increase the application of phosphorus, potassium, calcium, magnesium and other fertilizers at the fruit stage to ensure the growth of the whole fruit period, as well as appropriate fruit thinning, and avoid excessive leaf beating. On rainy days, pay attention to the use of fill lights for fill light. Planting varieties that are suitable for the local area and have a high sugar content can reduce the appearance of albino fruits.
Zombie fruit
Stiff fruit is a relatively common phenomenon in strawberry cultivation. It is manifested that after normal pollination, the fruit does not swell for a long time, resulting in a very small fruit, and the stiff fruit will also cause the taste of the strawberry to deteriorate and the texture to become hard. The main cause of stiffness is due to nutrient deficiencies. However, insufficient fertilization at the flowering and fruiting stage, low ground temperature, not large temperature difference, more fruits, fewer leaves, and poor root system will lead to less nutrients accumulated in strawberries, which will affect the development of fruits and cause fruit stiffness. 
Zombie fruit prevention] Pay attention to control the temperature in the shed, widen the temperature difference, and promote the full accumulation of nutrients. Ensure adequate nutrition during the fruiting period, paying special attention to the application of potassium, zinc, boron and calcium to ensure the normal growth of the fruit. At the same time, pay attention to proper thinning of flowers and fruits, film and heat preservation, to avoid the root system being affected, increase the application of organic fertilizer or humic acid for rooting and rooting, improve soil structure, ensure that the root system is healthy and can fully absorb nutrients, and the growth of strawberries. Due to different strawberry varieties, pollen germination rate, disease resistance, dormancy depth, light requirements, etc. are different, which will also affect the proportion of deformed fruits. When cultivating, according to the local climatic conditions, choose suitable strawberry varieties, and do a good job in temperature and humidity, water and fertilizer management to reduce the appearance of deformed fruits. The above content is compiled and edited by the Ask Nong team, for reference only!
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