Randy Gaugler

Transcriptomic analysis of the entomopathogenic nematode Heterorhabditis bacteriophoraTTO1 (2009)

Bai, Xiaodong, Adams, Byron J, Ciche, Todd A, Clifton, Sandra, Gaugler, Randy, Hogenhout, Saskia A, ...

Abstract Background The entomopathogenic nematode Heterorhabditis bacteriophora and its symbiotic bacterium, Photorhabdus luminescens , are important biological control agents of insect pests. This...

Transcriptomic analysis of the entomopathogenic nematode Heterorhabditis bacteriophora TTO1 (2009)

Bai, Xiaodong, Adams, Byron J., Ciche, Todd A., Clifton, Sandra, Gaugler, Randy, Hogenhout, Saskia A., ...

Background: The entomopathogenic nematode Heterorhabditis bacteriophora and its symbiotic bacterium, Photorhabdus luminescens, are important biological control agents of insect pests. This...

Laboratory Colonization of Aedes japonicus japonicus (2008)

Eric Williges, Ary Farajollahi, Jamesina J. Scott, Linda J. Mccuiston, Wayne J. Crans, Randy Gaugler

We describe methodology used for the laboratory colonization of Aedes japonicus japonicus, an exotic mosquito species native to eastern Asia and first collected in New Jersey as larvae in 1999. We...

Temporal and Spatial Synchrony of Culex territans (Diptera: Culicidae) with Their Amphibian Hosts (2008)

Kristen Bartlett-Healy, Wayne Crans, Randy Gaugler

Culex territans Walker (Diptera: Culicidae) larvae share nonpolluted freshwater habitats with amphibians, which are bloodmeal hosts of their adults. To examine synchrony of Cx. territans with...

Phonotaxis to Amphibian Vocalizations in Culex territans (Diptera: Culicidae) (2008)

Kristen Bartlett-Healy, Wayne Crans, Randy Gaugler

Culex territans Walker (Diptera: Culicidae) acquires bloodmeals from amphibian hosts. Females overwinter as inseminated adults and exit diapause in New Jersey when spring peepers (Pseudacris...

EXPRESSED SEQUENCE TAG ANALYSIS OF GENE REPRESENTATION IN INSECT PARASITIC NEMATODE HETERORHABDITIS BACTERIOPHORA (2007)

Xiaodong Bai, Parwinder S. Grewal, Saskia A. Hogenhout, Byron J. Adams, Todd A. Ciche, Randy Gaugler, ...

We compared Heterorhabditis bacteriophora GPS11 expressed sequence tags (ESTs) to the ESTs of animal-parasitic, human-parasitic, plant-parasitic, and free-living nematodes. We identified 127...

Biological Control Agents for White Grubs (Coleoptera: Scarabaeidae) in Anticipation of the Establishment of the Japanese Beetle in California (2000)

Albrecht M. Koppenhöfer, Michael Wilson, Ian Brown, Harry K. Kaya, Randy Gaugler

We tested biological control agents for the control of 3rd-instar scarab turfgrass pests, both for the masked chafer Cyclocephala hirta LeConte and the Japanese beetle, Popillia japonica Newman. The...

Effect of Entomopathogenic Nematode Concentration on Survival during Cryopreservation in Liquid Nitrogen

Bai, Cheng, Shapiro-Ilan, David I., Gaugler, Randy, Yi, Shuxia

Entomopathogenic nematodes are used for biological control of insect pests. A method for improved cryopreservation of infective juvenile stage nematodes has been developed using Steinernema...

Effects of Etomopathiogenic Nematodes on Meloidogyne javanica on Tomatoes and Soybeans

Fallon, Declan J., Kaya, Harry K., Gaugler, Randy, Sipes, Brent S.

Two Hawaiian isolates of Steinernema feltiae MG-14 and Heterohabditis indica MG-13, a French isolate of S. feltiae SN, and a Texan isolate of S. riobrave TX were tested for their efficacy against the...

Mating and Sexual Communication by Steinernema carpocapsae (Nemata: Steinernematidae)

Lewis, Edwin E., Barbarosa, Bruno, Gaugler, Randy

Entomopathogenic nematodes are lethal insect parasites that reproduce exclusively inside their hosts in nature. Infection decisions made by the free-living infective-stage juveniles have an impact on...

Optimization of Inoculation for In Vivo Production of Entomopathogenic Nematodes

Shapiro-Ilan, David I., Gaugler, Randy, Tedders, W. Louis, Brown, Ian, Lewis, Edwin E.

Entomopathogenic nematodes are potent biopesticides that can be mass-produced by in vitro or in vivo methods. For in vivo production, consistently high infection rates are critical to efficiency of...

Compatibility of Soil Amendments with Entomopathogenic Nematodes

Bednarek, Andrzej, Gaugler, Randy

The impact of inorganic and organic fertilizers on the infectivity, reproduction, and population dynamics of entomopathogenic nematodes was investigated. Prolonged (10- to 20-day) laboratory exposure...

Variations in Immune Response of Popillia japonica and Acheta domesticus to Heterorhabditis bacteriophora and Steinernema Species

Wang, Yi, Gaugler, Randy, Cui, Liwang

The infectivities of Steinernema carpocapsae, S. glaseri, S. scapterisci, and Heterorhabditis bacteriophora to Japanese beetle larvae, Popillia japonica, and house cricket adults, Acheta domesticus,...

Genetic Variability among Strains of the Entomopathogenic Nematode Steinernema feltiae

Gaugler, Randy, McGuire, Terry, Campbell, James

A systematic program of genetic improvement was initiated by assessing the phenotypic variation of Steinernema feltiae strains for two traits assumed to limit efficacy: ultraviolet tolerance and...

Influence of Soil pH and Oxygen on Persistence of Steinernema spp.

Kung, Shang-Ping, Gaugler, Randy, Kaya, Harry K.

Survival of infective juveniles of Steinernema carpocapsae and Steinernema glaseri gradually declined during 16 weeks of observation as the tested soil pH decreased from pH 8 to pH 4. Survival of...

Genetics of the Nematode Heterorhabditis bacteriophora Strain HP88: The Diversity of Beneficial Traits

Glazer, Itamar, Gaugler, Randy, Segal, Daniel

Genotypic variation among infective juveniles of Heterorhabditis bacteriophora (strain HP88) in heat, desiccation, ultraviolet tolerance, and host-finding ability was assessed by comparing the...

Instar Susceptibility of Simulium vittatum (Diptera: Simuliidae) to the Entomogenous Nematode Neoaplectana carpocapsae

Gaugler, Randy, Molloy, Daniel

Laboratory bioassays showed that the susceptibility of Simulium vittatum to Neoaplectana carpocapsae increased with successive larval instars. First, second, and third instar larvae were resistant to...

Biological Control Potential of Neoaplectanid Nematodes

Gaugler, Randy

The neoaplectanids are among the most studied of all entomogenous nematodes. Because these nematodes kill their insect hosts, they are regarded as having excellent potential as biological control...

Krüppel-like family of transcription factors: an emerging new frontier in fat biology

Brey, Christopher W., Nelder, Mark P., Hailemariam, Tiruneh, Gaugler, Randy, Hashmi, Sarwar

In mammals, adipose tissue stores energy in the form of fat. The ability to regulate fat storage is essential for the growth, development and reproduction of most animals, thus any abnormalities...