关键词: 甜果螨, 储藏柿饼, 皖北地区

Abstract: Objective To investigate the breeding status of Carpoglyphus lactis(C. lactis) in dried persimmons in the dried fruit stores in northern Anhui Province,so as to provide reference for control of C. lactis infestation in the dried persimmons available on market. Methods Dried persimmon samples which were stored≥6 months were collected from 30 dried fruit stores by the street in 6 counties in northern Anhui Province,each store collected 10g. The mites were initially isolated from the dried persimmons by direct microscopy,and then made into slide specimens,which were observed for the morphology under a light microscope and measured of the size. Finally,the mites were identified and counted comparison with the identification index and atlas of acaroid mites. Results A total of 30 dried persimmon samples were collected,in which C. lactis was detected in 23 samples. The breeding rate of C. lactis was 76. 67% (23 / 30),and the breeding density ranged from the highest being 36 capita to the lowest being 11 capita per gram of sample,with an average breeding density of 48. 71 capita per gram (14 612 capita / 300 g). Totally,12 322 adults (including nymphs),1 752 larvae and 538 eggs were detected. The constituent ratio of C. lactis  in different developmental stage was successively at 84. 33%,11. 99% and 3. 68% for adult,larva and egg,respectively. No hypopus was detected. Conclusion The dried persimmons in the fruit stores in northern Anhui Province were contaminated by C. lactis  to a certain degree,which suggests that corresponding effective prevention and control measures should be taken to reduce economic loss and incidences of acariasis.

Key words: Carpoglyphus lactis, Stored dried persimmon, Northern Anhui Province