The application of spore traps in the study of the spore diffusion dynamics of Botrytis cinerea in facilities

The popularization and application of greenhouses has promoted the development of facility agriculture. Tomato planting in the facility, Botrytis cinerea is a relatively serious plant disease that harms the growth of tomatoes. Therefore, in order to strengthen the management of tomato facilities, people use spore capture devices. The conidiospores were captured and their diffusion dynamics were measured to predict the occurrence period of Botrytis cinerea and the control period.
Tomato Botrytis cinerea is a typical epidemic. In recent years, with the development of facilities and vegetables, it is gradually increasing. It has caused great damage to tomato cultivation facilities, and for airborne diseases, pathogenic bacteria reproduction. The number or density of bodies or carriers is an important factor in their occurrence and prevalence. Therefore, the use of spore capture devices to capture and observe the temporal and spatial dynamics of the conidial proliferation of Botrytis cinerea has become a predictor of Botrytis cinerea The important basis can help the user to grasp the appropriate period of application, and to achieve good control effect while reducing the amount of low chemical pesticides.
The monitoring results of the spore trapping instrument showed that the conidia of Botrytis cinerea were randomly distributed in the greenhouse, and there was no significant difference in the spore capture at different heights. The spores proliferation of Botrytis cinerea was mainly concentrated in the daytime. From 8:00 to 20:00, the total amount of spore catching stations was 88.4% of the whole day, while the spore catching amount was smaller before 8:00 and after 20:00. Only accounted for 11.6% of the total number of days. After 10:00 every day, the amount of catch began to increase rapidly. After 16:00, the amount of catch began to increase rapidly. After 16:00, the catch amount decreased significantly. The catch amount from 10:00 to 16:00 was the most stable and the largest in the day. The catch occurred at 12:00-14:00. Concentric spores were positively correlated with the field disease index, which also indicated that the capture of conidia by the spore capture instrument and the detection of its diffusion dynamics were feasible for predicting the growth and control of tomato gray mold.

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