Journal of Economic Entomology (2004) 97, 397-408

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Richard W. Smiley, Jennifer A. Gourlie, Ruth G. Whittaker, Sandra A. Easley and Kimberlee K. Kidwell (2004)
Economic impact of Hessian fly (Diptera: Cecidomyiidae) on spring wheat in Oregon and additive yield losses with Fusarium crown rot and lesion nematode
Journal of Economic Entomology 97 (2), 397-408
Abstract: Damage caused by Hessian fly, Mayetiola destructor (Say), was quantified in spring wheat, Triticum aestivum L., trials near Pendleton and Moro, OR, during 2001 and 2002. Five field experiments were established to examine genetic resistance to Fusarium crown rot, Fusarium pseudograminearum (O'Donnell and Aoki), and economic damage by lesion nematode, Pratylenchus neglectus (Rensch, 1924) (Filipjev Schuurmanns and Stekhoven, 1941) and Pratylenchus thornei (Sher and Allen, 1941). Hessian fly became the dominant factor affecting grain yield in four experiments. Genotypes carrying the H3-resistance gene had grain yields 66 and 68% higher than susceptible genotypes in cultivar trials during 2001 and 2002, respectively. Yield reductions were detected when Hessian fly infestation rates exceeded 50% plants during 2001 and 15% plants (8% tillers) during 2002. In two trials during 2001, in-furrow application of aldicarb (Temik) at planting improved yields of four Hessian fly-susceptible cultivars by 72 and 144% (up to 1,959 kg/ha) and yields of one Hessian fly-resistant cultivar by 2 and 3%. Resistant cultivars and aldicarb improved grain quality as much as two market grades during 2001. The value of increased grain production with Hessian fly-resistant cultivars in four field experiments ranged from anddollar;112 to anddollar;252/ha, excluding price incentives for improved market quality. Yield reduction due to combined damage from Hessian fly and either Fusarium crown rot or lesion nematode was additive. This report seems to be the first quantitative yield loss estimate for Hessian fly in spring wheat in the semiarid environment of the inland Pacific Northwest.
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Research topic(s) for pests/diseases/weeds:
damage/losses/economics
resistance/tolerance/defence of host


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Mayetiola destructor Wheat (Triticum) U.S.A. (NW)
Pratylenchus neglectus Wheat (Triticum) U.S.A. (NW)
Pratylenchus thornei Wheat (Triticum) U.S.A. (NW)
Fusarium pseudograminearum Wheat (Triticum) U.S.A. (NW)