| role of mites and thrips in the agrobiocoenosis of the soybean. | soy beans dangerous pests are mites and thrips, that is why the present paper aims at the examination of the changes in their numbers and dominance relations of some varieties of different maturity groups. the small plot experiments were conducted in kisalföld region with the following soybean varieties: early ripening bólyi 38, evans, mccall, middle ripening bólyi 45 and late ripening eszter, zsuzsanna and borza, in mosonmagyaróvár. mites and thrips were collected every week with berlese-extrac ... | 2003 | 15149112 |
| the occurrence and composition of thrips (thysanoptera) species on leek. | the aim of the present research work was to investigate the population density and species composition of thrips infesting crops of leek in south poland. the flight activity of thrips was monitored using blue sticky traps and plant samples were taken to record the number of adult and larvae of thrips on leek. in 2004, the thrips were caught into blue sticky traps from the middle of june to the end of second decade of october. the first peak flight activity was noticed on the beginning of the thi ... | 2006 | 17385528 |
| the occurrence and species composition of thrips (thysanoptera) on onion. | the aim of the present research work was to investigate the population density and species composition of thrips infesting crops of onion in south poland. the flight activity of thrips was monitored using blue sticky traps and plant samples were taken to record the number of adult and larvae of thrips on onion. in 2004 the thrips were caught into blue sticky traps from the start of june to the end of the first decade of september. the peak flight activity was noticed in the middle of july. in 20 ... | 2007 | 18399478 |
| analysis of the thrips fauna (thysanoptera) on flowers of herbs. | studies of thysanoptera were realized at the agricultural experimental station in mydlniki near cracow over the years 2003-2005. this research work covers the observations of the species composition of thrips and the periods of the occurrence of the particulars species of thrips and their numerousness. the thrips were collected from flowers of valeriana officinalis l., hypericum perforatum l. and levisticum officinale koch. following thrips species dominated samples collected directly from plant ... | 2007 | 18399479 |
| impact of six transgenic bacillus thuringiensis rice lines on four nontarget thrips species attacking rice panicles in the paddy field. | as a key component of ecological risk assessments, nontarget effects of bacillus thuringiensis (bt) rice have been tested under laboratory and field conditions for various organisms. a 2-yr field experiment was conducted to observe the nontarget effects of six transgenic rice lines (expressing the cry1ab or fused protein of cry1ab and cry1ac) on four nontarget thrips species including frankliniella intonsa (trybom), f. tenuicornis (uzel), haplothrips aculeatus (f.), and h. tritici (kurd), as com ... | 2013 | 23339799 |
| development of a protocol for the identification of tospoviruses and thrips species in individual thrips. | a protocol for identifying tospovirus and thrips species in an individual thrips sample was successfully developed. first, an individual thrips was soaked in an rna stabilization solution to preserve protein and nucleic acids and ground in a carbonate buffer containing 0.2% sodium diethyldithiocarbamate. initially, the thrips extracts were screened for tospovirus infection by dot blot analysis using antibodies to nucleocapsid (n) proteins of tospoviruses. thrips extracts with positive results by ... | 2015 | 26141731 |
| life history characteristics of frankliniella occidentalis and frankliniella intonsa (thysanoptera: thripidae) in constant and fluctuating temperatures. | frankliniella occidentalis (pergande) and frankliniella intonsa (trybom) are sympatric pests of many greenhouse and field crops in korea. we compared the influence of constant (27.3°c) and fluctuating temperatures (23.8-31.5°c, with an average of 27.3°c) on the life table characteristics of f. occidentalis and f. intonsa held at a photoperiod of 16:8 (l:d) h and 45±5% relative humidity. the development times of both f. occidentalis and f. intonsa were significantly affected by temperature fluctu ... | 2015 | 26470222 |
| intra- and interspecific molecular polymorphism of thrips species. | molecular polymorphism of six species of thysanoptera of both sexes, collected from different locations and host plants in hungary was studied by using rapd-pcr technique. the specimens were classified according to sampling sites (gödöllö, nagykovácsi and valkó), host plants (lathyrus tuberosus, medicago sativa, taraxacum officinale, trifolium pratense), sexes, and larvae in case of aeolothrips intermedius. on the basis of the total of 103 fragments generated by 15 rapd primers the genetic dista ... | 2002 | 12371611 |
| the influence of elevated co2 concentration on the fitness traits of frankliniella occidentalis and frankliniella intonsa (thysanoptera: thripidae). | development and fecundity were investigated in an invasive alien thrips species, frankliniella occidentalis (pergande), and a related native species, frankliniella intonsa (trybom), under high co2 concentration. results show that the two thrips species reacted differently toward elevated co2 concentration. developmental duration decreased significantly (11.93%) in f. occidentalis at the co2 concentration of 800 µl/liter; survival rate of all stages also significantly increased (e.g., survival ra ... | 2017 | 28472267 |
| x-ray irradiation control of frankliniella occidentalis and frankliniella intonsa (thysanoptera: thripidae) in the exportation of freshly cut lily flowers. | lily (lilium longiflorum thunb.) is the most representative bulb flower, and it is the third most important flower in the flower industry of south korea after rose and chrysanthemum. to determine the efficacy of x-ray irradiation for use in quarantine processing, two species of flower thrips (frankliniella intonsa (trybom) and frankliniella occidentalis (pergande)) were placed in the top, middle, and bottom locations of lily boxes and irradiated with different x-ray doses. after irradiation with ... | 2017 | 28334123 |
| development of species-specific primers for agronomical thrips and multiplex assay for quarantine identification of western flower thrips. | while morphological identification of thrips species has been difficult because of their minute size and a lack of easily recognizable characteristics, molecular identification based on the development of specific molecular markers can be easily and reliably carried out. among the known molecular markers, the nuclear internal transcribed spacer (its) exhibits distinguishable variations among thrips species. in this study, sequences of its2 region of 10 agriculturally important thrips were establ ... | 2014 | 26309260 |
| an evaluation of frankliniella occidentalis (thysanoptera: thripidae) and frankliniella intonsa (thysanoptera: thripidae) performance on different plant leaves based on life history characteristics. | to compare the performance of frankliniella occidentalis (pergande) and native frankliniella intonsa (trybom) on cucumber and tomato leaves in laboratory, life history characters were investigated, and life tables were constructed using the method of age-stage, two-sex table life. compared with tomato leaf, there were shorter total preoviposition period (tpop), higher fecundity, longer female longevity, and higher intrinsic rate of increase (r) of both f. occidentalis and f. intonsa on cucumber ... | 2015 | 25673049 |
| the mitochondrial genome of frankliniella intonsa: insights into the evolution of mitochondrial genomes at lower taxonomic levels in thysanoptera. | thrips is an ideal group for studying the evolution of mitochondrial (mt) genomes in the genus and family due to independent rearrangements within this order. the complete sequence of the mitochondrial dna (mtdna) of the flower thrips frankliniella intonsa has been completed and annotated in this study. the circular genome is 15,215bp in length with an a+t content of 75.9% and contains the typical 37 genes and it has triplicate putative control regions. nucleotide composition is a+t biased, and ... | 2014 | 25128725 |
| insecticidal activity of α-methylene-γ-butyrolactone against several insect pests. | α-methylene-γ-butyrolactone (tulipalin a), which has been found to possess effective insecticidal activity against thrips palmi (thysanoptera; thripinae), was examined on several insect pests. this compound caused high mortality against thrips species such as frankliniella occidentallis and frankliniella intonsa. in addition, some mortality was observed against other agricultural pest species. it is considered that α-methylene-γ-butyrolactone has a wide spectrum of insecticidal activity. | 1999 | 27389105 |