fourteen accessions and cultivars of lycopersicon spp. were studied to evaluate their resistance to two-spotted spider mite, tetranychus urticae koch, under laboratory and greenhouse conditions. in vitro studies were carried out using thumbtack and leaf disk bioassays. lycopersicon hirsutum and l. pennellii accessions supported more mites on the tack. the highest number of eggs (5.15 â± 0.48 eg...

The citrus Hindu mite, Schizotetranychus hindustanicus (Hirst), is reported for the first time in Brazil and for the second time in South America. Mite specimens were collected from citrus in the municipality of Boa Vista, State of Roraima, northern Brazil. Symptoms associated with S.hindustanicus infestations on citrus are described. The importance of avoiding dissemination of this mite to the...

greenhouse whitefly and two-spotted spider mite are two important pests on greenhouse crops. the polyphagous predatory mite amblyseius swirskii preys on both of these pests. in this research, predation of the predatory mite on different stages of both pests, prey stage preference of pests, prey preference and switching behavior of predator between preferred stage of greenhouse whitefly and two-...

sugarcane mite, oligonychus sacchari mcgregor, is one of the most important pests of sugarcane plant in khuzestan province, southwest of iran. during a two-year study (2007-2008), the biology of the sugarcane mite, o. sacchari, was investigated on three commercial varieties cp48-103, cp57-614 and cp69-1062 under laboratory conditions (temperature 30±1° c, rh% 60±5 and a photoperiod of 16:8 (l:d...

Mite allergens in a house are considered to sensitize the residents at levels more than 2μg/g fine dust and may cause bronchial asthma at the level over 10 μg/g. The floor materials were substituted to cork and the bedding to mite-free one, and reduction of mite allergens and improvement of the symptoms and signs of bronchial asthma were observed in two houses where there are children with bron...

Background Seafood is one of the most important causes of anaphylaxis worldwide and considered to be closely associated with house dust mite allergy due to cross-reactivity of mite trypomyosin (Der p 10) with the tropomyosins from shrimps and molluscs. We assessed the prevalence of sensitization to tropomyosin and other shrimp allergens in seafood-allergic subjects from Central Europe and explo...

New hosts and parasitism notes for the mite Leptus (Acari: Erythraeidae) in Brazil. Larval erythraeid mites are common ectoparasites of harvestmen (Opiliones). Studies describing insects as potential hosts have received little attention. Specimens of an undescribed species of the genus Leptus were collected in association with predatory and phytophagous Heteroptera bugs in a secondary forest in...

BACKGROUND The most effective measure in house dust mite antigen reduction is mattress encasing with an impermeable membrane. A reduction in encasing costs will help increase patients' compliance in mite antigen avoidance. OBJECTIVE To investigate the effectiveness of partial mattress encasing with a nylon sheet produced in Thailand on the reduction of group I mite antigens from beddings. M...

We studied the amount of house dust antigen in the beds of 55 patients with atopic dermatitis, eleven patients with psoriasis and ten healthy volunteers using a commercial ELISA which can determine the amount of antigen from Dermatophagoides pteronyssinus, D. farinae and D. microseras expressed as nanogram (ng) antigen per gram of house dust. The World Health Organization has indicated that 10,...