Tao Ning, Zhan Xiao-dong, Sun En-tao, Li Chao-pin
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2015 Dec;27(6):634-7.
To study the species and density of Acaroid mites breeding in stored dry fruits.
The samples from the dried fruit stores and warehouses were collected, and the mites breeding in them were separated, then the slides with mites were prepared and observed by a light microscope for species identification and counting. The indexes such as the breeding density, species richness index, diversity index and evenness index were calculated.
Totally 12 species of Acaroid mites belonging to 6 families and 10 genera were obtained from the total 49 samples. The dominant mite species were Carpoglyphus lactis, Tyrophagus putrescentiae, Acarus siro, and Caloglyphus berlesei. The breeding densities of mites in longans, filberts and plum candies were 79.78, 48.91, 35.73 mites/g, respectively, which were higher than those in other dry fruits. The seasonal variation experiment of mites found that the average breeding density of acaroid mites was higher in July and October, the richness index and diversity index reached the highest value in July, and the evenness index was higher in January and April. The observation of the growth and decline of Acaroid mites under the artificial condition found the number of Caloglyphus berlesei declined sharply and Tyrophagus putrescentiae first increased and then decreased.
The pollution of Acaroid mites is serious in the stored dried fruits, for which the positive prevention and control measures to the mite breeding should be taken to reduce the harm.
研究仓储干果中粉螨的种类及密度。
采集干果店和仓库的样本，分离其中孳生的螨类，制作螨玻片，用光镜观察进行种类鉴定和计数。计算孳生密度、种类丰富度指数、多样性指数和均匀度指数等指标。
从49份样本中共获得隶属于6科10属的12种粉螨。优势螨种为粗脚粉螨、腐食酪螨、椭圆食粉螨和伯氏嗜木螨。龙眼、榛子和话梅中螨的孳生密度分别为79.78、48.91、35.73只/克，高于其他干果。螨的季节变化实验发现，粉螨平均孳生密度在7月和10月较高，丰富度指数和多样性指数在7月达到最高值，均匀度指数在1月和4月较高。人工条件下粉螨消长观察发现，伯氏嗜木螨数量急剧下降，腐食酪螨先增加后减少。
仓储干果中粉螨污染严重，应采取积极的防治措施控制螨类孳生，以减少危害。
