BACKGROUND Cutaneous manifestations of avian mite bites are not well recognized by physicians or patients. Clinical signs and symptoms are usually caused by bites from avian mites that have infested domestic poultry or birds nesting in or near human habitation. This report details 2 cases of pruritic papules acquired from avian mites that had infested pet gerbils and reviews the dermatologic li...

In order to contribute to taxonomic information on Tetranychid mites (Acari: Tetranychidae) in South America, surveys were conducted in Brazil (15 States and the Federal District) and Uruguay (one Department); 550 samples of 120 plant species were collected. Tetranychid mite infestations were confirmed in 204 samples, and 22 species belonging to seven genera of the Bryobiinae and Tetranychinae ...

Sorghum is one of the most important cereals in the semi-arid tropics. Nearly 150 insect specieshave been reported to damage the crop worldwide, causing an estimated loss of over US$ 1 000million annually. Of these, shoot fly, stem borers, greenbug, sugarcane aphid, shoot bug, spidermites, armyworms, midge, head bug, and head caterpillars are the major pests. Plant resistance to...

Four insects species have emerged as important pests of alfalfa in the Western United States during the past decade. Cowpea aphid has long been a resident insect of the Western United States, but became a significant alfalfa pest during the past two years. The silverleaf whitefly has been a serious pest of alfalfa since 1991. Silverleaf whitefly reduces hay yield and contaminates alfalfa hay wi...

Environ Entomol 17(3). 551-559 (1988) ABSTRACT The season-long population dynamics and within-plant distribution of the thrips Frankliniella occidentalis (Pergande) were examined. Thrips density was highly variable and peaked in midseason. Fluctuations in density in combination with changing age structure of the population suggest that migration plays an important role in the population dynamic...

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Studying antagonistic coevolution between host plants and herbivores is particularly relevant for polyphagous species that can experience a great diversity of host plants with a large range of defenses. Here, we performed experimental evolution with the polyphagous spider mite Tetranychus urticae to detect how mites can exploit host plants. We thus compared on a same host the performance of rep...

Amaranthus cruentus Solanum macrocarpon Tetranychus ludeni T. ludeni A. cruentus S. macrocarpon A. cruentus S. macrocarpon T. ludeni T. ludeni rm Ro T. ludeni T. ludeni S. macrocarpon A. cruentus. T. ludeni Amaranthus cruentus Solanum macrocarpon Tetranychus ludeni Journal of Insect Science