Biocontrol Centre for Africa, International Institute of Tropical Agriculture, 08 BP 0932, Cotonou, Benin, West Africa,
Exp Appl Acarol. 2013 Dec;61(4):449-70. doi: 10.1007/s10493-013-9714-6. Epub 2013 Jun 22.
After insects, mites are the major arthropod pests that inhabit stored agricultural products worldwide. To determine the acarofauna that infests cowpea, maize, paddy rice and sorghum in Benin (West Africa), surveys were conducted in some principal markets (Dantokpa, Glazoue and Parakou) of this country. A total of 555 samples of grains and debris were collected in May and September 2011. More than 56 species belonging to 24 mite families were recorded in the four products. These mite species included predators, parasites, fungivorous, phytophagous and other groups whose feeding habits are not well known. The family Cheyletidae was the most prevalent and the most diverse predatory mite family encountered, in which Cheyletus malaccensis Oudemans was the most abundant species. Several families of mite pests and mites responsible for allergies (Acaridae, Glycyphagidae, Pyroglyphidae, Pyemotidae and Saproglyphidae) were also detected. The three most dominant and frequent species were C. malaccensis, Suidasia nesbitti (Hughes) and Suidasia sp. Statistical analysis showed that densities of these three mite species were higher in Parakou than in Glazoue and Dantokpa, on one hand, and higher in debris than in grains, on the other hand. The densities of S. nesbitti and Suidasia sp. decreased significantly during the dry season, whereas C. malaccensis remained stable throughout the two samplings. Of all grains, sorghum was the least infested with mites. This study shows that in Benin mites are present in stored agricultural products to which they cause serious damage, and may cause various allergies to people.
在昆虫之后，螨虫是全球范围内栖息在储存农产品中的主要节肢动物害虫。为了确定在贝宁（西非）的豇豆、玉米、稻谷和高粱上的螨类区系，在该国的一些主要市场（Dantokpa、Glazoue 和 Parakou）进行了调查。2011 年 5 月和 9 月共收集了 555 份谷物和残渣样本。在这四种产品中记录了超过 56 种属于 24 个螨科的螨类。这些螨类包括捕食者、寄生虫、真菌食者、植食者和其他其取食习性尚不清楚的类群。螨科是最普遍和最多样化的捕食性螨科，其中最丰富的物种是马来西亚恙螨 Cheyletus malaccensis Oudemans。还检测到了一些螨类害虫和引起过敏的螨类（粉螨科、革螨科、嗜甜螨科、Pyroglyphidae 和 Saproglyphidae）。三种最占优势和频繁的物种是 C. malaccensis、Suidasia nesbitti (Hughes) 和 Suidasia sp. 统计分析表明，一方面，这三种螨类的密度在 Parakou 高于 Glazoue 和 Dantokpa，另一方面，在残渣中高于在谷物中。S. nesbitti 和 Suidasia sp. 的密度在旱季显著下降，而 C. malaccensis 在两次采样期间保持稳定。在所有谷物中，高粱受螨类的侵害最少。这项研究表明，在贝宁，螨虫存在于储存的农产品中，对它们造成严重的损害，并可能对人类造成各种过敏反应。
