The latest course of techniques and methods for flower and fruit protection of strawberries

The fruit yield of strawberries will be reduced after falling flowers, but sometimes there will be the phenomenon of natural physiological fruit drop, so the yield will be greatly reduced and the loss will be serious, so it is necessary to do a good job of prevention before and during flowering, as well as during the fruiting period. we should grasp the reasons behind the falling flowers and fruits, and then needle the reasons to improve the prevention and do not deal with them casually.

First, the reason for falling flowers and fruits

1. Poor pollination

The first is caused by poor pollination and fertilization. The field is wet after rain, the pollen breaks or sticks together, the ability to pollinate is lost, the pollen dies, or the pollen is washed away, and the other is extreme weather, such as high temperature and strong light. Make flowers underdeveloped, do not grow smoothly, unable to accept pollen.

two。 Disease

The main inducement of flower drop caused by virus disease. Other diseases, such as Botrytis cinerea and powdery mildew, are harmful to the organs or inflorescences and rachis of flowers, directly causing a large number of flowers to fall, and Botrytis cinerea and black pox disease will also cause fruit decay and fall. In addition, the harm of green bug bug will drop a large number of flowers and fruits.

II. Measures to protect flowers and fruits

1. Growth regulation

Pollination treasure is used during flowering to improve the success rate of pollination and fertilization, so that more fruit can be produced and more flowers can develop into fruit. After the result, you should use Liangguoan to protect the fruit, which can prevent physiological fruit drop. Or 24D and gibberellin suitable for flower preservation are used to protect flowers, which are to prevent falling flowers and fruits by regulating the density of hormones in the plant.

two。 Plant new virus-free seedlings cultivated by detoxification technology, and then disinfect, sterilize and kill insects, and then spray chlorothalonil, carbendazim and other corresponding agents in the initial stage to control the disease. Don't let the fruit and flowering be harmed by diseases and pests.

3. Thinning flowers and fruits

High-quality flowers are selected only in the right nodes of suitable branches and vines. After fruit setting, small fruits, completely malformed fruits, incomplete fruits, and fruits harmed by diseases and insect pests should be removed. Remove the rainy branches and old leaves in the field. Supply nutrients to blossom and bear fruit, reduce field humidity and reduce diseases.

There are two main reasons for strawberry falling fruit, and there are many solutions, but it is necessary to find the most suitable way to solve the problem, so as to ensure that it blossoms and sits and does not drop too much fruit. Increase the yield of strawberries and ensure the harvest.