Key points of strawberry flower and fruit preservation techniques: do this to increase the fruit-setting rate

After strawberries finish flowering, the amount of fruit set will decrease, but sometimes natural physiological fruit drop still occurs, which greatly reduces yield and causes serious losses. Therefore, preventive work must be done well before flowering, during flowering, and throughout the fruiting period. You must grasp the reasons behind flower and fruit drop, and then target those reasons to improve prevention rather than handling things randomly.

I. Causes of flower and fruit drop

1. Poor pollination

The first cause is poor pollination and fertilization. After rain in the field, conditions are humid; pollen absorbs water and ruptures or clumps together, losing its ability to pollinate, and the pollen dies, or the pollen is washed away and lost. Another cause is extreme weather, such as high temperature and strong light, which makes flowers develop incompletely and grow poorly, so they cannot receive pollen.

2. Disease

When flower and fruit drop is caused by viral disease, disease is the main trigger of flower drop. In addition, several diseases such as gray mold and powdery mildew damage the floral organs or the inflorescence and flower axis, directly causing a large number of flowers to drop; gray mold and black pox can also cause fruit to rot and drop. In addition, damage from green plant bugs causes heavy flower and fruit drop.

II. Measures to preserve flowers and fruit

1. Growth regulation

During the flowering period, use pollination booster to increase the success rate of pollination and fertilization, so that more fruit can set and more flowers can develop into fruit. After fruit set, use Liangguoan to preserve fruit, which can prevent physiological fruit drop. Alternatively, use 24D and gibberellin at a concentration suitable for flower preservation to preserve flowers. All of these prevent flower and fruit drop by regulating hormone secretion in the plant.

2. For planting, use new virus-free seedlings cultivated through virus-free technology, then disinfect, sterilize, and treat the planting site for insects. Then, if any disease is found during planting, promptly spray chlorothalonil, carbendazim, and other corresponding agents at the early stage for treatment to bring the disease under control. Do not let fruit and flowers suffer pest and disease damage during flowering.

3. Flower and fruit thinning

Only retain high-quality flowers on suitable nodes of suitable vines. After fruit set, remove small fruit, completely undeveloped deformed fruit, incomplete fruit, and fruit damaged by pests and diseases. Remove overly dense vines and old leaves in the field. Supply all nutrients to flowering and fruiting, reduce field humidity, and reduce disease.

There are two main causes of strawberry flower and fruit drop, and there are also many solutions, but you must find the most suitable method to solve the problem. Only in this way can flowering and fruit set be well ensured and too much flower and fruit drop be avoided. Increase strawberry yield and ensure the harvest.