Spiders constitute one of the most successful clades of terrestrial predators. Their extraordinary diversity, paralleled only by some insects and mites, is often attributed to the use of silk, and, in one of the largest lineages, to stereotyped behaviors for building foraging webs of remarkable biomechanical properties. However, our understanding of higher-level spider relationships is poor and...

Twelve field experiments and one laboratory experiment were conducted to determine the effects of furrow applied aldicarb and seed treatments of thiamethoxam, imidacloprid, Avicta (thiamethoxam + abamectin), Aeris (imidacloprid + thiodicarb), and acephate on twospotted spider mite, Tetranychus urticae Koch, on cotton, Cossypium hirsutum L. For the field experiments, data were pooled across all ...

Identification of spider mites based on morphological characteristics is difficult because morphological differences between species may be subtle and in some groups, including the Tetranychus Dufour species, detectable only in adult males, which usually correspond to a small proportion of a population. The utility of an alternative method, phosphoglucomutase (PGM) zymogram, is demonstrated in ...

The article presents materials on the study of effectiveness Hamla-550 EC (a.v., Chlorpyriphos 50% + Cypermethrin 5% permeate common spider mite an apple tree. preparation was tested at a consumption rate 1.0 l/ha. Ramboll high rates against thin mites trees; biological after treatment with drug 1.0l/ha 74.6%; maximum effect observed day 7 and amounted to 86.2%. Standard Nurel-D 55% fee l/ha sh...

During the period 2004-2006, 1691 samples of different origin were examined at the Diagnostic Centre for Plants. We received 1046 samples of imported plant material for detection and identification of quarantine organisms. More than 200 samples were checked on mites and insects to get a phytosanitary certificate for export and 391 samples were investigated for diagnostic reason. The Berlese-fun...

Experiments were carried out at ten locations of Saran district, Bihar during kharif season 2017 with okra crop cv ‘Supper green’. The assessment reveled that module (M4) proved the most effective treatment against pest and diseases i.e. shoot fruit borer, Earias vittella F., yellow vein mosaic virus, Bemisia tabaci (Genn.) red spider mites, Tetranychus urticae Koch in which lowest incidence wa...

We present results of the inventory spider mites Massane Forest Nature Reserve made during several field samplings from 2013 to 2017. Nineteen species have been recorded, which represents more than one third known mite fauna in France. Among them, three new were disclosed and are described: Bryobia (Bryobia) alberensis sp. nov. collected on Phyteuma spicatum Helichrysum stoechas, B. (Periplanob...

The two-spotted spider mite (Tetranyus urticae Koch) is a polyphagic pest of various crops. consequence its feeding on sugar beet leaves the disturbance photosynthesis and, as result, inhibition plant growth and development decrease in content roots. In climatic conditions Poland, number generations growing season may be from 4 to 6. aim field research was at assessing degree threat plantations...

This research investigates the capability of field-based spectroscopy (350–2500 nm) for discriminating banana plants (Cavendish subgroup Williams) infested with spider mites from those unaffected. Spider are considered a major threat to agricultural production, as they occur on over 1000 plant species, including varieties. Plants were grown under controlled glasshouse environment remove any inf...