A preliminary survey of acaroid mite breeding in farmer home storages

Abstract

Objective To investigate the densities and species of acaroid mites in stored products in farmer home storages.

Methods The mite samples which were collected from the farmers’home in Linquan County, Anhui Province included grains, foods, condiments, fruits and vegetables, and the breeding mites were isolated, then identified and classified after using the mites to make slide specimens.

Results Twenty-one species of acaroid mites were obtained, belonging to 7 families and 15 genera. The highest breeding density was in the millet (3 888.89 mite/g) and the lowest was in the fennel (2.03 mite/g), and the frequent breeding species of storages were Tyrophagus putrescentiae and Lepidoglyphus destructor. The average breeding density of acaroid mites in grains was 383.94 mite/g, and the dominant mite species was T. longior. The average breeding density of acaroid mites in condiments was 149.53 mite/g, and the dominant mite species were L. destructor and Chortoglyphus arcuatus. The average breeding density of acaroid mites in foods was 85.15 mite/g, and the dominant mite species were T. putrescentiae, T. longior, T. palmarum, Glycyphagus domesticus and Dermatophagoides farina. The average breeding density of acaroid mites in fruits and vegetables was 49.15 mite/g, and the dominant mite species were Rhizoglyphus robini and T. palmarum. The average breeding density of acaroid mites in other stored products was 25.05 mite/g, and the dominant mite species were T. putrescentiae and L. destructor.

Conclusion The species of acaroid mites in home storages are very rich, and it is necessary to take positive measures to reduce the infestation of acaroid mites.

Abstract

[ 摘要] 目的 调查农户储藏物中孳生粉螨的密度及种类。 方法 采集安徽省临泉县农户家中的储藏粮食、调味品、食 物、果蔬等储藏物样本, 分离其中的孳生粉螨, 制作成玻片标本并进行螨种的鉴定、分类。 结果 从 66 种储藏物样本中 共分离出粉螨 21 种, 隶属于 7 科 15 属, 其中以小米中粉螨的孳生密度最高 (3 888.89 只/g), 茴香中粉螨的孳生密度最低 (2.03 只/g); 以孳生腐食酪螨 ( Tyrophagus putrescentiae) 及害嗜鳞螨 ( Lepidoglyphus destructor) 的储藏物种类最多。粮食类 粉螨平均孳生密度为 383.94 只/g, 优势螨种为长食酪螨 ( Tyrophagus longior); 调味品类粉螨平均孳生密度为 149.53 只/g, 优势螨种为害嗜鳞螨和拱殖嗜渣螨 ( Chortoglyphus arcuatus); 食物类粉螨平均孳生密度为 85.15 只/g, 优势螨种为腐食酪 螨、长食酪螨、阔食酪螨 ( Tyrophagus palmarum) 、家食甜螨 ( Glycyphagus domesticus) 和粉尘螨 ( Dermatophagoides farinae); 果蔬类粉螨平均孳生密度为 49.15 只/g, 优势螨种为罗宾根螨 ( Rhizoglyphus robini) 和阔食酪螨; 其他粉螨平均孳生密度为 25.05 只/g, 优势螨种为腐食酪螨和害嗜鳞螨。 结论 农户储藏物中孳生的粉螨物种丰富, 应采取积极措施控制粉螨孳生 以降低其危害。