Name: Cheapest 14.98 Heterorhabditis bacteriophora Nematodes Online
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Heterorhabditis bacteriophora nematodes use a “cruise foraging” strategy. This means that their infective juveniles generally move more actively in search of less mobile insect hosts. They are more effective in killing insect pests in the field when temperature is between 20°C and 29°C.

Facts (show all)

– Effective against the following pests

Annual bluegrass weevil, Listronotus maculicollis

Banana moth, Opogona sachari

Billbug, Sphenophorus spp.

Black vine weevil, Otiorhynchus sulcatus

Borers, Synanthedon spp.

Citrus root weevil, Pachnaeus spp.

Corn rootworm, Diabrotica spp.

Diaprepes root weevil, Diaprepes abbreviatus

Fungus gnats, Diptera, Sciaridae

Grape root borer, Vitacea polistiformis

Iris borer, Macronoctua onusta

Oriental beetle, Anomala orientalis

Oriental fruit moth, Graphiolitha molesta

Sugar beet weevil, Temnorhinus mendicus

Sweet potato weevil, Cylas formicarius

Western corn rootworm, Diabrotica virgifera virgifera

Western flower thrips, Frankliniella occidentalis

White grub (Japanese beetle), Popillia japonica

+ Key factors for Heterorhabditis bacteriophora nematode effectiveness

These nematodes use cruise foraging strategy meaning their infective juveniles generally move actively in search of hosts and therefore, they are distributed throughout the soil profile and are more effective against less mobile hosts such as white grubs and black vine weevils.

Nematode infective juveniles always carry symbiotic bacteria, Photorhabdus spp. in their gut. The bacteria and the nematodes form a powerful team to kill insect pests.

In the body cavity, infective juveniles release symbiotic bacteria, Photorhabdus spp. from their gut in insect blood where multiplying nematode-bacterium complex causes septicemia and kill their insect host usually within 24 – 48 hours after infection.

In the insect cadaver, nematodes use the multiplying bacteria as food for their development and reproduction.

Heterorhabditis bacteriophora nematodes are considered to be warm temperature adapted. They are more effective in killing insect pests in the field when temperature is between 20°C and 29°C.

+ How Heterorhabditis bacteriophora nematodes work in the field

When the infective juveniles of Heterorhabditis bacteriophora are applied to the soil surface in the fields or thatch layer on golf courses, they start searching for their insect hosts.

Once insect larva has been located, the nematode infective juveniles penetrate into the larval body cavity via natural openings (see above).

Once in the body cavity, infective juveniles release symbiotic bacteria, Photorhabdus luminescens in insect blood.

In the blood, multiplying nematode-bacterium complex causes septicemia and kill their insect host usually within 24-48 hours after infection.

Nematodes feed on multiplying bacteria, mature into adults, reproduce and then emerge as infective juveniles from the host cadaver to seek new larvae in the soil and life cycle continues.
See our Nematode Life Cycle Diagram

+ Why you need them

they are natural parasites of insect pests so they do not pollute or harm the environment

they can kill their hosts rapidly within 24-28 hours after infection

they have a broad range of insect hosts

able to search for insect hosts actively, infect and kill them

nematodes can easily reproduce inside the dead insect body and emerge as infective juvenile that start looking for new hosts to continue the life cycle in the soil after first application

they can be easily applied using traditional insecticide spraying equipment

+ Why they are safer than traditional pesticides

they do not damage plants

can be used and applied around children and pets

do not cause any harm to the personnel involved in their production and application

food products are safe to handle and eat when they are treated with nematodes

they do not harm humans, animals, beneficial insects (ie. honey bees), microbial communities and other beneficial nematodes

+ Research Papers

Bracken, 1990 G.K. Bracken, Susceptibility of first-instar cabbage maggot, Delia radicum (L.) (Anthomyiidae: Diptera) to strains of the entomogenous nematodes Steinernema feltiae Filipjev, S. bibionis (Bovien), Heterorhabditis bacteriophora Poinar, and H. heliothidis (Khan, Brooks, and Hirschmann), Can. Entomol. 122 (1990), pp. 633-639.

Ebssa, L., Borgemeister, C., Poehling, H.M., 2004. Effectiveness of different species strains of entomopathogenic nematodes for control of western flower thrips (Frankliniella occidentalis) at various concentrations, host densities and temperatures. Biol. Contrl. 29, 145- 154.

Georgis, R., Koppenhofer, A.M., Lacey, L.A., Belair, G., Duncan, L.W., Grewal, P.S., Samish, M., Tan, L., Torr, P. and van Tol, R.W.H.M. 2006. Successes and failures in the use of parasitic nematodes for pest control. Biological Control. 38: 103-123.

Jagdale, G. B., Casey, M. L., Canas, L. and Grewal, P. S. 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. Biol. Control., 43: 23-30.

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. Biol. Contrl. 29: 296-305.

Jansson, R.K., Lecrone, S.H. and Gaugler, R. 1991. Comparison of single and multiple releases of Heterorhabditis bacteriophora Poinar (Nematoda: Heterorhabditidae) for control of Cylas formicarius (Fabricius) (Coleoptera: Apionidac), Biol. Control 1 (1991), pp. 320-328.

Koppenhöfer, A.M. and Fuzy, E.M. 2003. Effects of turfgrass endophytes (Clavicipitaceae: Ascomycetes) on white grub (Coleoptera: Scarabaeidae) control by the entomopathogenic nematode Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae), Environ. Entomol. 32 (2003), pp. 392-396.

Koppenhofer A.M. and Fuzy, E.M. 2008. Effect of the anthranilic diamide insecticide, chlorantraniliprole, on Heterorhabditis bacteriophora (Rhabditida : Heterorhabditidae) efficacy against white grubs (Coleoptera : Scarabaeldae). Biological Control. 45: 93-102.

Koppenhöfer, A. M., Fuzy, E.M., Crocker, R., Gelernter, W. and Polavarapu, S. 2004. Pathogenicity of Steinernema scarabaei, Heterorhabditis bacteriophora and S. glaseri to twelve white grub species, Biocontrol Sci. Technol. 14 (2004), pp. 87-92.

McGraw, B.A., Vittum, P.J., Cowles, R.S. and Koppenhofer A.M. 2010. Field evaluation of entomopathogenic nematodes for the biological control of the annual bluegrass weevil, Listronotus maculicollis (Coleoptera: Curculionidae), in golf course turfgrass. Biocontrol Science and Technology. 20: 149-163

Pena, J.E., Schroeder, W.J. and Osborne, L.S. 1990. Use of entomogenous nematodes of the families Heterorhabditidae and Steinernematidae to control banana moth (Opogona-sachari). Nematropica. 20: 51-55.

Pilz, C., Keller, S., Kuhlmann, U. and Toepfer, S. 2009. Comparative efficacy assessment of fungi, nematodes and insecticides to control western corn rootworm larvae in maize. Biocontrol. 54: 671-684.

Shields, E.J., Testa, A., Miller, J.M. and Flanders, K.L. 1999. Field efficacy and persistence of entomopathogenic nematodes Heterorhabditis bacteriophora Oswego and H. bacteriophora NC on alfalfa snout beetle larvae (Coleoptera: Curculionidae), Environ. Entomol. 28 (1999), pp. 128-136.

Stefan, T., Ibolya, H.Z., Ehlers, R.U., Peters, A. and Kuhlmann, U. 2010. The effect of application techniques on field-scale efficacy: can the use of entomopathogenic nematodes reduce damage by western corn rootworm larvae? Agricultural and Forest Entomology. 12: 389-402.

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