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Aim: Our study aimed at investigating the risk perception of nurses and related factors in the era of COVID‐19 period. Design: Cross‐sectional study. Methods: Four hundred and forty‐two participants completed an online questionnaire relating to their risk perception on public health emergencies. Data were collected between 25 November 2020 and 1 December 2020. Kruskal–Wallis test, Mann–Whitney U test and Ordinal logistic regression analysis were used to examine factors impacting on risk perception. Results: 65.2% of nurses' risk perception of COVID‐19 was the moderate level even below the moderate level in the postperiod of COVID‐19. Kruskal–Wallis test results indicated significant differences in gender, age, education status, working years, professional title, postlevel, COVID‐19 contact experience, marital status and health status (p < 0.05). Ordinal logistic regression showed that gender, education status, professional title, work department, COVID‐19 contact experience, character, health status and nursing work environment are associated with risk perception (p < 0.05). No Patient or Public Contribution. [ABSTRACT FROM AUTHOR]

Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is a serious pest that prefers fresh fruits and is native to Southeast Asia. In our study, apple cider vinegar bait traps were used to capture and monitor the population dynamics of this native pest in Wuhu City, China, from May/June 2017 to May 2018. The research was conducted at 15 locations in two fruit orchards in Wuhu. Traps caught more adults in general in a Meiling blueberry orchard than in a Xicun mixed orchard, and the highest trap counts occurred near harvest time (October). Females had more mature eggs from September to November, and the number of mature eggs declined thereafter. We found several non‐crop hosts, which can provide food and reproductive resources for D. suzukii and are common in forests and field margins. By comparing the number of captured adults in the Meiling and Xicun orchards, we found that blueberry was preferred by D. suzukii among the fruits in our search. Fruit ripening times differed among crops; therefore, fly populations moved between crop and non‐crop habitats during the year or had varying population dynamics on different crops in different seasons. The D. suzukii population and the number of mature eggs decreased in summer and winter but increased in spring and autumn. Drosophila suzukii had higher survival rates with blueberry than those with other fruits, and D. suzukii could use four non‐crop species growing around the orchards as host plants. [ABSTRACT FROM AUTHOR]