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research-article | 29-March-2019

Survival of entomopathogenic nematodes in oil emulsions and control effectiveness on adult engorged ticks (Acari: Ixodida)

their interaction with the insect-pest. Hence, in an effort to increase the survival time and infectivity of EPNs on ticks, this study aimed to evaluate: (i) the effect of five vegetable oil emulsions on the survival and infectivity of S. carpocapsae, S. websteri and H. bacteriophora on ticks in laboratory and (ii) the control effectiveness (CE) of application of EPNs in oil emulsion on ticks present in infested dogs (Canis lupus familiaris) in field conditions. Materials and methods Description

Teodulfo Aquino-Bolaños, Jaime Ruiz-Vega, Yolanda D. Ortiz Hernández, Julio C. Jiménez Castañeda

Journal of Nematology, Volume 51 , 1–10

research-article | 30-November-2020

Infected host responses across entomopathogenic nematode phylogeny

) that describes three clades within the genus Heterorhabditis (Fig. 1). We chose at least one species from each Heterorhabditis clade, two from the clade containing H. bacteriophora, and a single Steinernema species (S. feltiae). We assessed the responsiveness of five species to their own macerate, and then tested the responses of all five species to H. bacteriophora-derived macerate in a common experiment. We hypothesized that responsiveness to host cues would be conserved, while species-specific

Hilal Erdogan, Glen Stevens, Asa Stevens, David Shapiro-Ilan, Fatma Kaplan, Hans Alborn, Edwin Lewis

Journal of Nematology, Volume 53 , 1–9

research-article | 30-November-2020

Intraspecific virulence of entomopathogenic nematodes against the pests Frankliniella occidentalis (Thysanoptera: Thripidae) and Tuta absoluta (Lepidoptera: Gelechiidae)

D. balteata, the infectivity varied for the sequestering D. virgifera virgifera. Also, they detected some intraspecific variability in the impact of the benzoxazinoids on the infectivity of H. bacteriophora populations, although most of them were resistant. Finally, a recent study by Levy et al. (2020) revealed intraspecific variability on the tolerance to heat and desiccation. By using several bioassays, Levy et al. (2020) defined which populations performed better under stressing conditions

Raquel Campos-Herrera, Ignacio Vicente-Díez, Magda Galeano, Maryam Chelkha, María del Mar González-Trujillo, Miguel Puelles, David Labarga, Alicia Pou, Javier Calvo, José Eduardo Belda

Journal of Nematology, Volume 53 , 1–14

research-article | 30-November-2020

The impact of chemical nematicides on entomopathogenic nematode survival and infectivity

EPN species like H. bacteriophora and S. carpocapsae (Browning et al., 2004; Glazer et al., 1997; Hara and Kaya, 1982; Rovesti et al., 1988, Rovesti and Deseo, 1990). These studies mostly aimed to assess the compatibility of these compounds with EPNs based on the survival and infectivity of IJs. There, however, is a need to expand on the diversity of nematicides that are tested for impact on EPN, and their effects on the penetration efficacy and reproductive capacity; chemotaxis and longer-term

Mustapha Touray, Harun Cimen, Sebnem H. Gulsen, Derya Ulug, Dolunay Erdogus, David Shapiro-Ilan, Selcuk Hazir

Journal of Nematology, Volume 53 , 1–17

research-article | 30-November-2020

Laboratory virulence of entomopathogenic nematodes to the sweetpotato whitefly, Bemisia tabaci

move after probing using a needle, the nymphs were regarded to be dead. In the second virulence experiment, four EPN species [H. bacteriophora (VS strain), H. floridensis (K22 strain), S. carpocapsae (All strain), and S. rarum (17C&E)] with high virulence to MEAM1 nymphs were selected based on the outcome of the first virulence experiment above. The virulence to MEAM1 third instar nymphs was assessed on snap bean and tomato leaves. The first evaluation was conducted three times (3 trials over time

Yinping Li, George N. Mbata, David I. Shapiro-Ilan

Journal of Nematology, Volume 53 , 1–8

research-article | 30-November-2018

Hatching and Mortality of Meloidogyne enterolobii Under the Interference of Entomopathogenic Nematodes In vitro

. enterolobii to tomato in the presence of Steinernema brazilense PONTO2C, S. feltiae (Filipjev) IBCB47, S. rarum (Doucet) PAM25 (Rhabditida: Steinernematidae), Heterorhabditis amazonensis IBCB10 and H. bacteriophora (Poinar) HB (Rhabditida: Heterorhabditidae) in vitro, in order to verify if the EPNs promote mortality or interfere in the hatching of juveniles of M. enterolobii. Material and methods The experiments were carried out in incubator chambers (biochemical oxygen demand—BOD) at 25°C, 70% of

Alixelhe Pacheco Damascena, Júlio César Antunes Ferreira, Marylia Gabriella Silva Costa, Luis Moreira de Araujo Junior, Silvia Renata Siciliano Wilcken

journal of nematology, Volume 51 , 1–8

research-article | 30-November-2019

First record of native entomopathogenic nematodes from Montana agroecosystems

, KM016361.1, KM016345.1, JN098451.1, AB243439.1). Similarly, S. feltiae 2 species was found 100% identical to S. feltiae (Accessions: MK294325.1, MK294320.1, KM016352.1, KM016339.1, AF121050). Heterorhabditis bacteriphora was 100% conspecific to a number of H. bacteriophora isolates in NCBI (MK072810.1, MK421482.1, MG551676.1, KT378450.1, KT378448). Discussion The purpose of this survey was to see if EPNs were present in the Golden Triangle area of Montana, and if so, to explore the patterns of their

Ramandeep K. Sandhi, Ratnasri Pothula, Satyendra K. Pothula, Byron J. Adams, Gadi V.P. Reddy

Journal of Nematology, Volume 52 , 1–11

research-article | 30-November-2019

Potential of entomopathogenic nematodes against the pupal stage of the apple maggot Rhagoletis pomonella (Walsh) (Diptera: Tephritidae)

cups and placing them in the incubator, we observed the cups daily for adult emergence until 30 days post treatment application. Adults that successfully emerged were considered to have survived the nematode treatment. All other experimental parameters were the same as described above except we used 10 pupae per replicate (based on the availability of insects). Pot bioassay Five nematode species, S. riobrave, S. carpocapsae, S. feltiae, H. indica, and H. bacteriophora were selected for the pot

Muhammad Usman, Sehrish Gulzar, Waqas Wakil, Jaime C. Piñero, Tracy C. Leskey, Laura J. Nixon, Camila Oliveira-Hofman, Shaohui Wu, David Shapiro-Ilan

Journal of Nematology, Volume 52 , 1–9

Article | 21-July-2017

Are Entomopathogenic Nematodes Effective Biological Control Agents Against the Carob Moth, Ectomyelois ceratoniae?

, H. bacteriophora demonstrated low virulence on the pest larvae in petri tests with a LC50 = 426.92 IJ/larva. Hence, both Steinernema species were selected for subsequent experiments. The penetration rate for S. feltiae and S. carpocapsae into the hemocoel of the pest was 43% and 31%, respectively, and the corresponding reproduction rate was 15,452 IJ/larva for S. feltiae and 18,456 IJ/larva for S. carpocapsae. The gathered data from those in vitro tests were used for a field assay

ZAHRA MEMARI, JAVAD KARIMI, SHOKOOFEH KAMALI, SEYED HOSSEIN GOLDANSAZ, MOJTABA HOSSEINI

Journal of Nematology, Volume 48 , ISSUE 4, 261–267

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