medicinal plants were used from past to present. different small arthropods such as acari were found on these plants. therefore a study on the acari fauna associated with some medicinal plants (family: asteraceae) in hamedan region was carried out during 2008–2009. in this survey, 23 species belonging 18 genera from 15 different families of the subclass acari were collected and identified. two ...

Of 100 asthmatic patients prick tested for allergy to Dermatophagoides pteronyssinus, 88% were positive compared with only 14% of controls. A significantly greater proportion of dust samples from the houses of the asthmatics contained Dermatophagoides mites. The house-dust mite D. pteronyssinus, constituted 90% of the mites identified, other pyroglyphid mites, Cheyletus and Glycophagus making u...

Twenty four species of pygmephoroid mites (Acari: Pygmephoroidea: Neopygmephoridae, Scutacaridae, Microdispidae) are recorded from the ant Lasius flavus (Fabricius) or from its nests from Western Siberia and Crimea. Four of them of the genus Scutacarus Gros, 1845 (Acari: Scutacaridae), S. insolitus sp. nov., S. heterotrichus sp. nov., S. moseri sp. nov. and S. sibiriensis sp. nov. are described...

during 2005-2006, an investigation was carried out on the mites associated with stored rice in guilan province, iran. two species of phytoseiid mites were collected and identified as proprioseiopsis bregetovae (abbasova, 1970) and typhlodromus (anthoseius) transvaalensis (nesbitt, 1951). both are reported here for the first time from iran. the association of these two species with the habitat o...

In the screening trial, among nineteen sugarcane genotypes screened for reaction to rust mite, Abacarus sacchari, only 2 (009-64 and 0961-07) harboured >1 mites /2 cm2 leaf area while remaining all <2 mites/2 entire crop duration. Morphological characters of revealed that interveinal distance, trichome density were found influence A. sacchari negatively. The genotype with high phenol lowe...

Alkaloids in the skin glands of poison frogs serve as a chemical defense against predation, and almost all of these alkaloids appear to be sequestered from dietary arthropods. Certain alkaloid-containing ants have been considered the primary dietary source, but dietary sources for the majority of alkaloids remain unknown. Herein we report the presence of approximately 80 alkaloids from extracts...

lations sometimes develop. Such variations are apparently the result of predators and parasites, climatic differences, varying tree conditions such as tree vigor and the plant growth cycle, all o€ which affect the feeding mites. The effects of temperature and humidity were the only considerations in the study reported here. Climatological conditions were found to vary from grove to grove and fr...

Mites in the genus Chorioptes cause a mild form of skin disease in both domestic and wild ruminants. In July 2006, dermatitis characterized by alopecia, marked lichenification, accumulation of crust, and fissuring was recognized in 14 out of 200 Holstein dairy cattle raised in the cattle farm of the National Institute of Animal Science in Cheonan, Republic of Korea. Skin lesions were distribute...

Developmental stress can alter resource allocation in early life, and in altricial birds with rapid developmental trajectories and high resource demands, nestlings may adjust early resource partitioning to cope with challenging environments. We experimentally manipulated ectoparasite levels in nests and assessed whether ectoparasites affected somatic and physiological development in European st...

Coevolutionary associations between hosts and symbionts (or parasites) are often reflected in correlated patterns of divergence as a consequence of limitations on dispersal and establishment on new hosts. Here we show that a phylogenetic correlation is observed between chaetodactylid mites and their hosts, the long-tongued bees; however, this association manifests itself in an atypical fashion....