Nematode Information » Research papers on EPNs

Entomopathogenic nematodes symposia at 50th Annual Meeting of the Society of Nematologists held in Corvallis, Oregon (July 17-20, 2011)

Ganpati Jagdale — Mon, 05 Sep 2011 22:16:01 +0000

Four symposia on entomopathogenic nematodes were organized by Drs. Ganpati B. Jagdale, Raquel Campos-Herrera, Claudia Dolinski, David I. Shapiro-Ilan and Parwinder S. Grewal at 50^th Annual meeting of the Society of Nematologists which was held at the Oregon State University Corvallis, Oregon from July 17 to July 20, 2011. A total of 22 invited speakers shared their research and extension experience in the field of Entomopathogenic Nematology. Following is a list of topics covered by various speakers in each symposium.

SYMPOSIUM I: Entomopathogenic Nematodes as Model Systems in Ecology

Convener: Raquel Campos-Herrera.

Poinar, G.O.Jr. 2011. Legacy of entomopathogenic nematology: The early Years (1930-1990).

Barbercheck, M. 2011. Peering into the black box: building an understanding of the population biology of entomopathogenic nematodes.

Stock, P. 2011. Entomopathogenic nematodes and their bacterial Symbionts: how many, where and how?

Griffin, C. 2011. Behavioural ecology of entomopathogenic nematodes: Past, present and future.

Hoy, C.W. and Grewal, P.S. 2011. Entomopathogenic nematode ecological modeling, from frontiers of Ecology to the future of agriculture.

Gaur, H. 2011. The impact of climate change on plant-parasitic nematodes.

SYMPOSIUM II: Entomopathogenic Nematodes as Model Systems in Stress Physiology and Evolutionary Biology

Conveners: Ganpati B. Jagdale and Parwinder S. Grewal

Grewal, P.S. 2011. Entomopathogenic nematology since the 1990’s: the openings of a new era.

Itamar Glazer, I. 2011. How to manage daily stresses: the entomopathogenic nematode perspective.

Perry, R. N. and Ehlers, R.-U. 2011. Enhancing survival attributes of entomopathogenic Nematodes.

Adler R. Dillman, A.R., Mortazavi, A. and Sternberg, P.W. 2011. Genomic analysis of steinernema: informing functional Biology and Ecology.

Sternberg, P.W. and Xiaodong Bai, X. 2011. Genome sequencing and beyond.

SYMPOSIUM III: Entomopathogenic Nematodes as Model Systems: Contributions to Symbiosis

Convener: Raquel Campos-Herrera

Somvanshi,V.S., Sloup, R. E., Crawford, J.M., Martin, A. R., Heidt, A.J., Clardy, J.C. and Ciche, T.A. 2011. How Heterorhabditis Bacteriophora handle their insect pathogenic symbionts.

Goodrich-Blair, H. and Forst, S. 2011. Understanding microbial symbiosis using the association between Xenorhabdus bacteria and Steinernema nematodes.

Clarke, D.J. 2011. The regulation of symbiosis in Photorhabdus.

An, R. and P.S. Grewal, P.S. 2011. In-vivo gene expression reveals differences in molecular features used by Photorhabdus and Xenorhabdus for virulence and symbiosis.

ffrench-Constant, R.H., Wilkinson, P. and Dowling, A.J. 2011. The worm that turned: bacterial symbionts of entomopathogenic nematodes as a potent source of novel bacterial toxins.

SYMPOSIUM IV: Entomopathogenic Nematodes as Biological Control Agents in Sustainable Agriculture.

Convener: Claudia Dolinski

Georgis, R. 2011. Commercialization of entomopathogenic nematodes: an insider’s perspective.

Lacey, L.A. and Koppenhöfer, A.M. 2011. Successes with entomopathogenic nematodes for control of insect pests above and below ground.

Han, R. 2011. Production technology and field application of entomopathogenic nematodes in china.

Shapiro-Ilan, D. I. and Dolinski, C. 2011. Application technology for entomopathogenic nematodes.

Ganguly, S. and Dolinski, C. 2011. New advances in entomopathogenic nematodes around the world.

Duncan, L. 2011. Grower acceptance of entomopathogenic nematodes in Florida.

Please see the official program booklet of the Society of Nematologists for the abstracts of individual talks.

Research papers presented on entomopathogenic nematodes at 49th annual meeting of the Society of Nematologists

Ganpati Jagdale — Sun, 26 Sep 2010 01:05:06 +0000

Recently, 49th annual meeting of the Society of Nematologists was held from July 11- 14, 2010 in Boise, Idaho. This meeting was a great success and was attended by over 200 participants from all over the world. A total of 5 symposiums entitled “Potato Nematology (Convener: David Chitwood), Expanding Frontiers of Nematology (Conveners: Parwinder Grewal and Charles Opperman), Education (Convener: TJ Bliss), Nematode-Microbe Interactions (Conveners: Amy Treonis and Parwinder Grewal) and Frontiers in Insect Nematology (Conveners: David I Shapiro-Ilan and Ganpati Jagdale)” were organised in this meeting. Also, two workshops namely “Molecular Ecology (Conveners: Raquel Campos-Herrera and Byron J. Adams) and Industry (Conveners: Tom Hewlett) were organised to cover topics regarding molecular basis for the nematode- environment interactions and various technologies in nematode research, respectively. There were 7 contributed paper sessions covering various nematode research topics including host-parasite interactions (Convener: Russ Ingham), management 1 (Convener: Maurice Moens) & 2 (Convener: Shabeg Briar), registance and genetics (Convener: Richard Davis), biological control (Convener: Kris Lambert), ecology/evolution/behavior (Convener: George Bird) and variou topics (Convener: Robin Giblin-Davis).

Following is the list of papers presented on entomopathogenic nematodes at the meeting

Following papers were presented in the symposium on entomopathogenic nematodes (Frontiers in Insect Nematology).

Abd-Elgawad, Mahfouz M. M., A.S. Abdel-Razek, and A.E. Abd El-Wahab. 2010. Protection of citrus fruits against the medfly using entomopathogenic nematodes and fungi.

Bal, Harit K., R. A. J. Taylor, and P.S. Grewal. 2010. Do ambusher and cruiser entomopathogenic nematodes disperse differently in soil in the absence of hosts?

Campos-Herrera, Raquel, E. Pathak, R.J., Stuart, F.E. El-Borai, C. Gutiérrez, J.H. Graham, and L.W. Duncan. 2010. Entomopathogenic nematode ecology as a basis for their use in pest management.

Dolinski, Claudia 2010. Recent advancements in applied entomopathogenic Nematology in South America.

Grewal, Parwinder S., and R. An. 2010. Partnership between entomopathogenic nematodes and bacteria.

Holmes, Len D. and F.L. Inman III. 2010. Learning to raise the entomopathogenic nematode Heterorhabditis bacteriophora in submerged culture.

Moens, Maurice and R.-U. Ehlers. 2010. The latest developments in applied entomopathogenic nematology in Europe.

Pathak, Ekta, R. Campos-Herrera, R.J. Stuart, F.E. El-Borai, A.W. Schumann, J.H. Graham, and L.W. Duncan. 2010. The impact of a new tactic to manage a citrus disease on biological control of a citrus pest by entomopathogenic nematodes.

Shapiro-Ilan, David I., and Lawrence A. Lacey. 2010. Novel entomopathogenic nematode formulations and targets in north american orchards.

Biological control of various insect pests with entomopathogenic nematode S. carpocapsae

Ganpati Jagdale — Mon, 23 Nov 2009 19:10:58 +0000

Apopka weevil (Diaprepes abbreviatus): This insect was named as Apopka weevil (Snout beetles) because it was first reported from Apopka, Florida. This is also recognized as a Diaprepes root weevil and considered as a very damaging pests of Citrus, many agricultural crops and ornamental plants throughout the United States.

Armyworm (Heliothis armigera): This insect belongs to order Lepidoptera. These insect are called armyworms because their caterpilars (larvae) accumulated in large numbers and crawl in masses across fields defoliating everything in their path. These insect have wide host range but commonly cause a serious damage to cotton, maize, tobacco and chickpeas throughout the world. All larval stages of this insect are susceptible to S. carpocapsae. Read paper entitledle “Glazer I, Klein M, Navon A, et al. 1992 Comparison of efficacy of entomopathogenic nematodes combined with antidesiccants applied by canopy sprays against 3 cotton pests (lepidoptera, noctuidae). Journal of Economic Entomology. 85: 1636-1641″
Billbugs (Sphenophorus purvulus): These weevils (Snout beetles) are also called the bluegrass billbugs because they prefer to feed on Kentucky blue- grass. This insect is also a serious pest of perennial rygrass, hybrid bermudagrass, bahiagrass, centipedegrass, St. Augustinegrass and fine-leaf fescue. Larval stages of this insect are susceptible to S. carpocapsae
Black vine weevil (Otiorhynchus salcatus): This is a British native weevil and currently considered as the most serious garden pest, causing the most damage on evergreen trees and shrubs in the Europe and North America. All larval stages of this insect are susceptible to S. carpocapsae.
Blue grass weevil (Listronotus maculicollis): Blue grass weevil is prevalent in the northeastern part of the US and primarily feeds on annual bluegrass. This insect has also been found to feed on perennial ryegrass and creeping bentgrass. The insect larvae feed inside the stem whereas adults feed on foliage. The damaged turf turns yellow and symptoms resemble drought stress. All larval stages of this insect are susceptible to S. carpocapsae.
Codling moth (Cydia pomonella): Codling moth is a major pest of apples but it can also cause a serious damage to pears, walnut, crabapples, hawthorn, apricots and stone fruits. Insect larvae cause damage feeding on tissue and making tunnels in the fruits. This tunnels also serves as entry points for other disease causing organisms. All larval stages of this insect are susceptible to S. carpocapsae.
Crane flies (Tipula spp.): The larvae of these European crane flies are called as leatherjackets. These leatherjackets generally feed on the roots and crowns. This direct damage cause yellowing and patchy appearance of turf on the golf courses and home lawns. These insects also cause serious damage to many cereals and forage crops. Larval stages of this insect are susceptible to S. carpocapsae.
Cutworms (Agrotis ipsilon, A. segetum): The common cutworm (Agrotis segetum) and the black cutworm (A. ipsilon) are serious soil pests of many vegetable and field crops all over the world. These insects are called cutworms because their larva (caterpillar) cut off seedlings at ground level while feeding. The caterpillars are generally dark green, brown or yellow and voracious feeders of leaves, buds and stems of plants. Since theses spend most of their time in the soil environment, they are easy target of entomopathogenic nematodes. All larval stages of this insect are susceptible to S. carpocapsae.

Billbugs (Sphenophorus purvulus): These weevils (Snout beetles) are also called the bluegrass billbugs because they prefer to feed on Kentucky blue- grass. This insect is also a serious pest of perennial rygrass, hybrid bermudagrass, bahiagrass, centipede grass, St. Augustine grass and fine-leaf fescue. Larval stages of this insect are susceptible to S. carpocapsae.

Scientific publications on Entomopathogenic Nematodes

Ganpati Jagdale — Sat, 22 Mar 2008 19:25:21 +0000

Scientific Publications by Dr. Ganpati B. Jagdale on insect-parasitic nematodes (EPNs)

I. Book Chapters

Tomalak, M., Piggott, S. and Jagdale, G. B. 2005. Glasshouse applications. In: Nematodes As Biocontrol Agents. Grewal, P.S. Ehlers, R.-U., Shapiro-Ilan, D. (eds.). CAB publishing, CAB International, Oxon. Pp 147-166.

II. Research Publications

Jagdale, G.B., Kamoun, S., Grewal, P.S. 2009. Entomopathogenic nematodes induce components of systemic resistance in plants: Biochemical and molecular evidence. Biol. Control.51: 102-109
Hoy, C. W., Grewal, P. S., Lawrence, J. L., Jagdale, G., Acosta, N. 2008. Canonical correspondence analysis demonstrates unique soil conditions for entomopathogenic nematode species compared with other free-living nematode species. Biol. Control. 46: 371-379.
Jagdale, G. B. and Grewal, P. S. 2008. Influence of the entomopathogenic nematode Steinernema carpocapsae infected host cadavers or their extracts on the foliar nematode Aphelenchoides fragariae on Hosta in the greenhouse and laboratory. Biological Control 44: 13-23.
Shabeg, S .B., Jagdale, G. B., Cheng, Z, Hoy, C. W., Miller, S. A. and. Grewal, P. S. 2007. Indicative value of soil nematode food web indices and trophic group abundance in differentiating habitats with a gradient of anthropogenic impact. Environmental Bioindicators 2: 146-160.
Jagdale, G. B., Casey, M. L., Grewal, P. S. and Luis Cañas. 2007. Effect of entomopathogenic nematode species, split application and potting medium on the control of the fungus gnat, Bradysia difformis (Diptera : Sciaridae), in the greenhouse at alternating cold and warm temperatures. Biological Control 43: 23-30.
Jagdale, G. B. and Grewal, P. S. 2007. Storage temperature influences desiccation and ultra violet radiation tolerance of entomopathogenic nematodes. Journal of Thermal Biology 32: 20-27.
Jagdale, G. B., Saeb, A. T., Nethi Somasekhar and Grewal, P. S. 2006. Genetic variation and relationships between isolates and species of the entomopathogenic nematode genus Heterorhabditis deciphered through isozyme profiles. Journal of Parasitology 92: 509- 516.
Sandhu, S. K., Jagdale, G. B., Hogenhout, S. A. and Grewal, P. S. 2006. Comparative analysis of the expressed genome of the entomopathogenic nematode, Heterorhabditis bacteriophora. Molecular and Biochemical Parasitology 145: 239-244.
Grewal, P. S., Susan Bornstein-Forst, S., Burnell, A. M., Glazer, I. and Jagdale, G. B. 2006. Physiological, genetic, and molecular mechanisms of chemoreception, thermobiosis and anhydrobiosis in entomopathogenic nematodes. Biological Control 38: 54- 65.
Jagdale, G. B., Grewal, P. S. and Salminen, S. O. 2005. Both heat-shock and cold-shock influence trehalose metabolism in entomopathogenic nematodes. Journal of Parasitol 91: 988-994.
Jagdale, G. B., Casey, M. L., Grewal, P. S. and Lindquist, R. K. 2004. Application rate and timing, potting medium and host plant on the efficacy of Steinernema feltiae against the fungus gnat, Bradysia coprophila, in floriculture. Biological Control 29: 296-305.
Jagdale, G. B., and Grewal, P. S. 2003. Acclimation of entomopathogenic nematodes to novel temperatures: trehalose accumulation and the acquisition of thermotolerance. International Journal for Parasitology 33: 145-152.
Grewal, P. S. and Jagdale, G. B. 2002. Enhanced trehalose accumulation and desiccation survival of entomopathogenic nematodes through cold preacclimation. Biocontrol Science and Technology 12: 533- 545.
Jagdale, G. B. and Gordon, R. 1998. Effect of propagation temperatures on temperature tolerances of entomopathogenic nematodes. Fundamental and Applied Nematology 21: 177-183.
Jagdale, G. B. and Gordon, R. 1998. Variable expression of isozymes in entomopathogenic nematodes follows laboratory recycling. Fundamental and Applied Nematology 21: 147-155.
Jagdale, G. B. and Gordon, R.1997. Effect of temperature on the activities of glucose-6-phosphate dehydrogenase and hexokinase in entomopathogenic nematodes (Nematoda: Steinernematidae). Comparative Biochemistry and Physiology 118A: 1151-1156.
Jagdale, G. B. Gordon, R. 1997. Effect of temperature on the composition of fatty acids in total lipids and phospholipids of entomopathogenic nematodes. Journal of Thermal Biology 22: 245-251.
Jagdale, G. B. and Gordon, R. 1997. Effect of recycling temperature on the infectivity of entomopathogenic nematodes. Canadian Journal of Zoology 75: 2137-2141.
Jagdale, G. B., Gordon, R. and Vrain, T. C. 1996. Use of cellulose acetate electrophoresis in the taxonomy of steinernematids (Rhabditida, Nematoda). Journal of Nematology 28: 301-309.
Jagdale, G. B. and Gordon, R. 1994. Distribution of catecholamines in the nervous system of a mermithid nematode, Romanomermis culicivorax. Parasitology Research 80: 459-466.
Jagdale, G. B. and Gordon, R. 1994. Distribution of FMRF-amide-like peptide in the nervous system of a mermithid nematode, Romanomermis culicivorax. Parasitology Research 80: 467-473.
Jagdale, G.B. and Gordon, R. 1994. Role of catecholamines in the reproduction of Romanomermis culicivorax. Journal of Nematology 26: 40-45.
Jagdale, G.B. and Gordon, R. 1994. Caudal papillae in Romanomermis culicivorax. Journal of Nematology 26: 235-237.