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Silicon enhances natural enemy attraction and biological control through induced plant defences

Published online by Cambridge University Press:  09 September 2009

O.L. Kvedaras ,
M. An ,
Y.S. Choi  and
G.M. Gurr
O.L. Kvedaras*
Affiliation:
EH Graham Centre for Agricultural Innovation, New South Wales Department of Primary Industries, Private Mail Bag, Wagga Wagga, NSW2650, Australia
M. An
Affiliation:
Environmental and Analytical Laboratories, Faculty of Science & EH Graham Centre for Agricultural Innovation, Charles Sturt University, Locked Bag 558, Wagga Wagga, NSW2678, Australia
Y.S. Choi
Affiliation:
EH Graham Centre for Agricultural Innovation, Charles Sturt University, PO Box 883, Orange, NSW2800, Australia
G.M. Gurr
Affiliation:
EH Graham Centre for Agricultural Innovation, Charles Sturt University, PO Box 883, Orange, NSW2800, Australia
*
*Author for correspondence Fax: +61 (0)26938 1809 E-mail: [email protected]
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Abstract

Silicon (Si) is known to have a role in constitutive plant defence against arthropod pests, and recent work has illustrated involvement in induced plant defences. The present tri-trophic study tested the hypothesis that Si increases natural enemy attraction to pest-infested plants and improves biological control. Cucumber plants treated with potassium silicate (Si+) and untreated control plants (Si−) were maintained in separately vented glasshouse compartments. Y-tube olfactometer studies showed that adult Dicranolaius bellulus were significantly more attracted to Si+ plants upon which Helicoverpa armigera larvae had fed compared with Si−, pest-infested plants. Predators were not significantly more attracted to Si+ plants when comparing uninfested cucumbers. In a field experiment, we placed H. armigera-infested and uninfested Si+ and Si− cucumber plants in a lucerne stand. Removal rates of H. armigera egg baits showed predation was greater for Si+ infested plants than for other treatments. Results suggest that Si applied to plants with a subsequent pest infestation increases the plants' attractiveness to natural enemies; an effect that was reflected in elevated biological control in the field.

Keywords

trophic interactionsherbivore-induced plant volatilesnatural enemiesolfactometer
Type
Short Communication
Information
Bulletin of Entomological Research , Volume 100 , Issue 3 , June 2010 , pp. 367 - 371
Copyright
Copyright © Cambridge University Press 2009

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References

Bélanger, R.R., Benhamou, N. & Menzies, J.G. (2003) Cytological evidence of an active role of silicon in wheat resistance to powdery mildew (Blumeria graminis f. sp tritici). Phytopathology 93, 402–412.CrossRefGoogle ScholarPubMed
Chérif, M., Asselin, A. & Bélanger, R.R. (1994) Defense responses induced by soluble silicon in cucumber roots infected by Pythium spp. Phytopathology 84, 236–242.CrossRefGoogle Scholar
Djamin, A. & Pathak, M.D. (1967) Role of silica in resistance to Asiatic rice borer, Chilo suppressalis Walker, in rice varieties. Journal of Economic Entomology 60, 347–351.CrossRefGoogle Scholar
Fauteux, F., Rémus-Borel, W., Menzies, J.G. & Bélanger, R.R. (2005) Silicon and plant disease resistance against pathogenic fungi. FEMS Microbiology Letters 249, 1–6.CrossRefGoogle ScholarPubMed
Gatehouse, J.A. (2002) Plant resistance towards insect herbivores: a dynamic interaction. New Phytologist 156, 145–169.CrossRefGoogle ScholarPubMed
Gomes, F.B., Moraes, J.C., Santos, C.D. & Goussain, M.M. (2005) Resistance induction in wheat plants by silicon and aphids. Scientia Agricola 62, 547–551.CrossRefGoogle Scholar
Gomes, F.B., Moraes, J.C., dos Santos, C.D. & Antunes, C. (2008) Use of silicon as inductor of the resistance in potato to Myzus persicae (Sulzer) (Hemiptera: Aphididae). Neotropical Entomology 37, 185–190.CrossRefGoogle ScholarPubMed
Goussain, M.M., Moraes, J.C., Carvalho, J.G., Nogueira, N.L. & Rossi, M.L. (2002) Efeito da aplicacao de silicio em plantas de milho no desenvolvimento biologico da lagarta-do-cartucho Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae). Neotropical Entomology 31, 305–310.CrossRefGoogle Scholar
James, D.G. & Grasswitz, T.R. (2005) Synthetic herbivore-induced plant volatiles increase field captures of parasitic wasps. Biocontrol 50, 871–880.CrossRefGoogle Scholar
Jones, L.H.P. & Handreck, K.A. (1967) Silica in soils, plants and animals. Advances in Agronomy 19, 107–149.CrossRefGoogle Scholar
Kvedaras, O.L. & Keeping, M.G. (2007) Silicon impedes stalk penetration by the borer Eldana saccharina in sugarcane. Entomologia Experimentalis et Applicata 125, 103–110.CrossRefGoogle Scholar
Kvedaras, O.L., Keeping, M.G., Goebel, F.R. & Byrne, M.J. (2007a) Water stress augments silicon-mediated resistance of susceptible sugarcane cultivars to the stalk borer Eldana saccharina (Lepidoptera: Pyralidae). Bulletin of Entomological Research 97, 175–183.CrossRefGoogle Scholar
Kvedaras, O.L., Keeping, M.G., Goebel, F.R. & Byrne, M.J. (2007b) Larval performance of the pyralid borer Eldana saccharina Walker and stalk damage in sugarcane: influence of plant silicon, cultivar and feeding site. International Journal of Pest Management 53, 183–194.CrossRefGoogle Scholar
Kvedaras, O.L., Byrne, M.J., Coombs, N.E. & Keeping, M.G. (2009a) Influence of plant silicon and sugarcane cultivar on mandibular wear in larval Eldana saccharina Walker (Lepidoptera: Pyralidae). Agricultural and Forest Entomology 11, 301–306.CrossRefGoogle Scholar
Kvedaras, O.L., Keeping, M.G. & Meyer, J.H. (2009b) Silicon-augmented resistance of plants to herbivorous insects: a review. Annals of Applied Biology 155, in press.Google Scholar
Ma, J.F. & Yamaji, N. (2006) Silicon uptake and accumulation in higher plants. Trends in Plant Science 11, 392–397.CrossRefGoogle ScholarPubMed
Massey, F.P. & Hartley, S.E. (2009) Physical defences wear you down: progressive and irreversible impacts of silica on insect herbivores. Journal of Animal Ecology 78, 281–291.CrossRefGoogle ScholarPubMed
Menzies, J., Bowen, P. & Ehret, D. (1992) Foliar applications of potassium silicate reduce severity of powdery mildew on cucumber, muskmelon, and zucchini Squash. American Society for Horticultural Science 117, 902–905.CrossRefGoogle Scholar
Moraes, J.C., Goussain, M.M., Basagli, M.A.B., Carvalho, G.A., Ecole, C.C. & Sampaio, M.V. (2004) Silicon influence on the tritrophic interaction: wheat plants, the greenbug Schizaphis graminum (Rondani) (Hemiptera: Aphididae), and its natural enemies, Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) and Aphidius colemani Viereck (Hymenoptera: Aphidiidae). Neotropical Entomology 33, 619–624.CrossRefGoogle Scholar
Rodrigues, F.A., McNally, D.J., Datnoff, L.E., Jones, J.B., Labbé, C., Benhamou, N., Menzies, J.G. & Bélanger, R.R. (2004) Silicon enhances the accumulation of diterpenoid phytoalexins in rice: a potential mechanism for blast resistance. Phytopathology 94, 177–183.CrossRefGoogle Scholar
Sabelis, M.W., Janssen, A., Pallini, A., Venzon, M., Bruin, J., Drukker, B. & Scutareanu, P. (1999) Induced Plant Defenses Against Pathogens and Herbivores. pp. 269–296 in Agrawal, A.A., Tuzun, S. & Bent, E. (Eds). Induced Plant Defenses Against Pathogens and Herbivores: Biochemistry, Ecology, and Agriculture. St Paul, Minnesota, USA, APS Press.Google Scholar
Savvas, D., Giotis, D., Chatzieustratiou, E., Bakea, M. & Patakioutas, G. (2009) Silicon supply in soilless cultivations of zucchini alleviates stress induced by salinity and powdery mildew infections. Environmental and Experimental Botany 65, 11–17.CrossRefGoogle Scholar