Journal Article Performance of Arrhenotokous and Thelytokous Thrips tabaci (Thysanoptera: Thripidae) on Onion Cabbage Its Implications Evolution Pest Management Get access Xiao-Wei Li, Li 1Department Entomology, Cornell University, New York State Agricultural Experiment Station, Geneva, NY 14456.2Key Laboratory Plant Protection Resources Management, Ministry Education, Northwest A&F Yangling, Shaanxi 712100, China. Search for other works by this author on: Oxford Academic PubMed Google...

The main purpose of this study was to reveal if the UV-A, and visible light reflection leaves white cabbage varieties is correlated resistance against onion thrips. antixenotic (AR) thrips damage differed between Balashi, Bloktor, Riana – considered resistant Green Gem, Hurricane, Quisor susceptible. solar UV-A (340–400 nm) (401–650 were recorded. Correlation AR in range studied computed. According evaluation density always higher on susceptible than varieties. head forming contrast exterior...

Onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae), is a worldwide pest of onion, Allium cepa L. In field studies on onion resistance conducted in 2007 and 2008 using 49 cultivars, 11 showed low leaf damage by T. tabaci. laboratory studies, the along with two susceptible checks four additional were evaluated to characterize determine if color and/or light reflectance associated No-choice tests performed adults numbers eggs larvae counted each cultivar after three 10 d,...

Populations of Thrips tabaci are known to have two sympatric but genetically isolated reproductive modes, arrhenotoky (sexual reproduction) and thelytoky (asexual reproduction). Herein, we report behavioral, ecological genetic studies determine whether there is gene flow between arrhenotokous thelytokous T. tabaci. We did not detect significant preference by males mate with females a particular mode, nor behavioral differences mated or in their pre-copulation, copulation duration mating...

Although it is generally assumed that one or a few matings are sufficient to maximize female fitness and mating be costly females, multiple of females have been reported across wide taxonomically diverse set animals. Here, we investigated frequency male harassment rate in arrhenotokous Thrips tabaci. In addition, the cost mating, matings, was evaluated. We found T. tabaci mated times during their lifetime were subjected high at all ages tested. Mating terms reducing longevity delaying...

Abstract Most of the current understanding orientation and communication jewel beetles arose from research on Asian emerald ash borer (EAB), Agrilus planipennis, which has become one most destructive invasive forest insect pests in history following its introduction to North America European Russia. From a perspective, number have high risk similar that borer, including potential threat bronze birch anxius, goldspotted oak auroguttatus, twolined chestnut bilineatus. Native expanding their...

Abstract The onion thrips ( Thrips tabaci Lindeman, 1889) is a key pest of wide range crops because its ecological attributes such as polyphagy, high reproduction rate, ability to transmit tospoviruses and resistance insecticides. Recent studies revealed that T. cryptic species complex it has three lineages (leek-associated arrhenotokous L1-biotype, leek-associated thelytokous L2-biotype tobacco-associated T-biotype), however, the adults remain indistinguishable. individuals were collected...

Sitona weevils (Coleoptera: Curculionidae) are a species complex comprising pests of many leguminous crops worldwide, causing damage to young plants as adults and rootlets larvae, resulting in significant yield losses. Timely detection migrating adult is needed determine when deployment control measures becomes necessary. With the aim developing plant volatile-based lures for spp. detection, we investigated responses S. humeralis host plant-related aromatic compounds.In olfactometer studies,...

A faunal survey was carried out in Hungary between 2011 and 2014 order to monitor the occurrence of tydeoid species 139 vineyards located five distinctive wine regions. Twenty four belonging families Tydeidae, Iolinidae Triophtydeidae have been identified, which Tydeus californicus (Banks) most dominant species. The following thirteen species, viz. reticoxus Ueckermann, T. spathulatus Oudemans, Brachytydeus falsa (Livshitz), B. latiuscula (Kuznetzov), longiuscula matura opima (Kuznetzov...

Abstract The brown marmorated stink bug ( Halyomorpha halys ) is an invasive pest insect species, which was recently introduced from Asia to America and then Europe. Besides causing serious damage in agriculture, this species also represents a source of intense annoyance for humans residential areas, because large amounts individuals can aggregate on buildings while seeking shelter before overwintering. Taking into account the need pesticide-free management methods, example light trapping ,...

Abstract Certain fungus gnats, like Lycoriella ingenua are notorious pests in agriculture, especially mushroom production. While larvae cause mainly direct crop damage, adults vectors of several dangerous fungal pathogens. To promote the development pesticide-free management methods, such as light trapping, we measured spectral sensitivity L. compound eyes with electroretinography and performed two different behavioural experiments to reveal wavelength dependence phototaxis this species. The...

Abstract The chemical signatures emitted by fungal substrates are key components for mycophagous insects in the search food source or suitable oviposition sites. These volatiles usually fruiting bodies and mycelia. attract fungivorous insects, like flowers pollinators; certain mimic shape of mushroom even produce a typical odor to exploit on fungus-insect mutualism. There numerous which eat fungi additionally, but only few considered threat agriculture. Lycoriella ingenua is one most serious...

Abstract There is an urgent need in Europe to prepare resources for the arrival of emerald ash borer, Agrilus planipennis (Buprestidae, Coleoptera) from European Russia, and possibly other invasive jewel beetles. A lightweight, easy handle, non‐sticky trap could facilitate monitoring detection derive information about borer beetle populations. In two experiments carried out over consecutive years oak forest, a new multi‐funnel design with light‐green (sometimes described as fluorescent...

Aproceros leucopoda (Hymenoptera: Argidae), native to East Asia, is an invasive pest of elms (Ulmus spp.) recently reported from several European countries.The identification effective and practical tools suitable for detecting monitoring the species has become necessary.As no trapping methods have been developed A. yet, in this study we compared white, yellow fluorescent sticky "cloak" traps their applicability catching adults.The experiment was carried out a mixed forest plantation black...

Onion thrips (Thrips tabaci Lindeman) has become a significant pest of cabbage (Brasssica oleracea L.) in regions with dry continental climate. Thrips-resistant varieties have been developed breeding programs, but the mechanisms resistance remain largely unknown. Antixenosis, one three mechanisms, may play role no plant trait identified as source antixenosis. A series studies were conducted to identify this insect–crop interaction and seek traits that correlated resistance. In first article...

The onion thrips, Thrips tabaci (Lindeman, 1889), is a cosmopolitan pest of economic importance on wide range crops. Despite being one the most studied thrips species, there very limited knowledge available about its ability to perceive light. T. cryptic species complex consists tobacco-associated (T) and two leek-associated (L1, L2) biotypes. We made electroretinogram recordings widespread thelytokous (where unfertilized eggs produce females) L2 biotype measured attraction light sources in...

The molecular polymorphism between the specimens of Thrips tabaci Lindeman collected from tobacco (Nicotiana tabacum) and onion (Allium cepa) was observed by RAPD-PCR-analysis. amplified DNA-banding patterns Ttabaci populations propagate on were significantly different those onion. In total, 54 DNA-bands scored. Of these, 39 (72.0%) different, 7 (13.0%) bands mutual two populations. A slight dissimilarity females larvae T. propagating basis one (1.9%) discriminating PCR-fragment six ones...

The onion thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae) has been recognized as a severe worldwide pest of white cabbage ( Brassica oleracea L. convar. capitata provar. Duch.) for almost three decades. Although the most effective control measure is use resistant varieties, little known about resistance mechanism(s) involved. In 2007, study at Tordas, Hungary, was carried out with 6 varieties to confirm that antixenosis least partly responsible against thrips. number adult thrips...

Abstract Polyphagous thrips, like western flower thrips Frankliniella occidentalis and onion Thrips tabaci, are major pests in various ornamental vegetable crops greenhouses throughout the world. In Hungary, both of these polyphagous species frequently cause severe damage many greenhouse crops, especially commercial sweet pepper. Chemical control is not always feasible because certain ecological characteristics species. The commercially available phytoseiid predatory mites Amblyseius...

Several synthetic floral lures have been described for the cetoniin scarabs Cetonia aurata L. and Potosia cuprea Fabr. (Coleoptera, Scarabaeidae), exploiting their olfaction-guided behavioural preference a wide range of flower volatiles. A ternary mixture 3-methyl eugenol, 1-phenylethanol (E)-anethol has previously as powerful attractant both C. a. P. . The first objective present research was to test whether isoeugenol with very similar molecular structure can substitute eugenol in blend....