Publications

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effect of storage temperature on survival and infectivity of steinernema rarum (oli strain) (rhabditida: steinernematidae).nematode strains of the entomopathogenic family steinernematidae differ in their ability to infect insects at different temperatures. survival and infectivity of infective juveniles (ijs) of steinernema rarum (oli) were studied after their storage at 23+/-2 degrees c and at 5+/-1 degrees c. survival at 23+/-2 degrees c was always above 95%. at 5+/-1 degrees c, survival decreased at week 5, but infectivity did the same after week 2. unlike other steinernematids, both infectivity and survival of i ...200818387629
description of four novel species of xenorhabdus, family enterobacteriaceae: xenorhabdus budapestensis sp. nov., xenorhabdus ehlersii sp. nov., xenorhabdus innexi sp. nov., and xenorhabdus szentirmaii sp. nov.the taxonomic affiliation was determined for four xenorhabdus strains isolated from four steinernema hosts from different countries. as compared to the five validly described xenorhabdus species, i.e., x. nematophila, x. japonica, x. beddingii, x. bovienii and x. poinarii, these isolates represented novel species on the basis of 16s rrna gene sequences and riboprint patterns, as well as by physiological and metabolic properties. they were named xenorhabdus budapestensis sp. nov., type strain dsm ...200515830803
draft genome sequence and annotation of the entomopathogenic bacterium xenorhabdus szentirmaii strain dsm16338.we report the genome sequence of xenorhabdus szentirmaii dsm16338 (4.84 mb), a symbiont of the entomopathogenic nematode steinernema rarum. this strain produces antimicrobial activity.201424625876
host range, specificity, and virulence of steinernema feltiae, steinernema rarum, and heterorhabditis bacteriophora (steinernematidae and heterorhabditidae) from argentina.infections were carried out in the laboratory to determine the host range, specificity, and virulence of steinernema rarum, s. feltiae, and heterorhabditis bacteriophora that were isolated from different regions of argentina. all insect orders showed a remarkable susceptibility to the three nematode species, showing mortality values higher than 66%, except for anoplura. the mortality of the insects of agronomic interest was more than 90%. as for insects of sanitary importance, s. feltiae and s. ...199910222175
taxonomic and biological characterization of steinernema rarum found in the southeastern united states.two steinernema isolates found in louisiana and mississippi were later identified as isolates of s. rarum. dna sequences of its regions of the united states isolates are identical with sequences of argentinean s. rarum strains samiento and noetinger and differ by two bases from the arroyo cabral isolate from córdoba, argentina. sem observations revealed several new structures in the isolates from the us: female face views have a hexagonal-star perioral disc and eye-shaped lips; some females do n ...200619259427
control of grapholita molesta (busck, 1916) (lepidoptera: tortricidae) with entomopathogenic nematodes (rhabditida: heterorhabditidae, steinernematidae) in peach orchards.oriental fruit moth grapholita molesta (busck, 1916) (lepidoptera: tortricidae) is considered a major pest in temperate fruit trees, such as peach and apple. entomopathogenic nematodes (epns) are regarded as viable for pest management control due to their efficiency against tortricid in these trees. the objective of this study was to evaluate the effectiveness of native epns from rio grande do sul state against pre-pupae of g. molesta under laboratory and field conditions. in the laboratory, pre ...201323994482
evaluation of efficacy of 18 strains of entomopathogenic nematodes (rhabditida) against planococcus citri (risso, 1813) (hemiptera: pseudococcidae) under laboratory conditions.planococcus citri (risso, 1813) (hemiptera: pseudococcidae) is an important plant virus vector in grapevine crops in brazil and other countries. the mealybug grows in roots and leaves of the grapes. entomopathogenic nematodes (epns) are efficient control agents against insects associated to the soil and could be applied with the same equipment used for chemical insecticides. the aim of this study was to select effective epns for controlling p. citri females in laboratory conditions (25±1°c, ur 6 ...201323458234
entomopathogenic nematodes in agricultural areas in brazil.entomopathogenic nematodes (epns) (steinernematidae and heterorhabditidae) can control pests due to the mutualistic association with bacteria that kill the host by septicemia and make the environment favorable for epns development and reproduction. the diversity of epns in brazilian soils requires further study. the identification of epns, adapted to environmental and climatic conditions of cultivated areas is important for sustainable pest suppression in integrated management programs in agricu ...201728382937
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