Cereal Aphid and Natural Enemy Populations in Cereal Production Systems in Eastern Washington

Clement, Stephen L.; Elberson, Leslie R.; Youssef, Nabil N.; Young, Frank L.; Evans, Marc A.

doi:10.2317/0311.19.1

Cited by 17 publications

(23 citation statements)

References 12 publications

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“…Susceptible spring wheat cultivars exhibited stunted tillers, broken stems, and reduced grain size and number near Pendleton during 2001 and, with the exception of reduced grain size, during 2002. Yield and economic losses reported here are far greater than a recent estimate (up to 405 kg/ha) in a dryland area of central Washington (Clement et al 2003) but are comparable with those reported for winter wheat in the southeastern United States Raymer 1989, Buntin 1999) and spring wheat in North Africa (Amri et al 1992. For example, yield reductions nearing 2,000 kg/ha were reported for winter wheat in Georgia (Buntin 1999) and for spring wheat in Oregon (this study).…”

Section: Discussionsupporting

confidence: 84%

“…Although 11 biotypes of Hessian ßy have been reported in the PaciÞc Northwest, the compositions of populations were heavily dominated by the relatively less virulent biotype GP (Ratcliffe et al 2000, Clement et al 2003. Proportions of the populations comprised of more-virulent biotypes may be expected to increase with time and as additional genes for resistance are deployed in the region and as the proportion of the crop carrying resistance genes is expanded (El Bouhssini et al 1996, 2001.…”

Section: Discussionmentioning

confidence: 96%

“…One gene, H3, for Hessian ßy resistance is speciÞ-cally deployed in Oregon and Washington (Clement et al 2003), although an earlier survey of Hessian ßy biotypes in the region suggested that populations have also been exposed to genes H5 and H6 (Ratcliffe et al 2000). During 2001, cultivars carrying the H3-resistance gene were planted on Ϸ5 and 22% of the spring wheat acreage in Oregon (Goodwin 2002) and Washington (Garibay 2002), respectively.…”

mentioning

confidence: 98%

“…Each biotype except H, J, M, and N was detected at a site near the OregonÐWashington border, suggesting that they may also be present in northeast Oregon. Biotype GP represented 47 to 75% of the population at Þve Washington sites examined (Ratcliffe et al 2000, Clement et al 2003. Biotypes comprising at least 5% of the population at one or more Washington sites included E, F, G, and O. Biotype E is virulent to the H3 gene, F is virulent to H6, G is virulent to H3 and H6, and O is virulent to genes H3, H5, and H6 (Patterson et al 1992).…”

mentioning

confidence: 99%

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Economic Impact of Hessian Fly (Diptera: Cecidomyiidae) on Spring Wheat in Oregon and Additive Yield Losses with Fusarium Crown Rot and Lesion Nematode

Smiley¹,

Gourlie²,

Whittaker³

et al. 2004

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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 & Aoki), and economic damage by lesion nematode, Pratylenchus neglectus (Rensch, 1924) (Filipjev Schuurmanns & Stekhoven, 1941) and Pratylenchus thornei (Sher & 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 dollar 112 to dollar 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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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 96%

mentioning

confidence: 98%

mentioning

confidence: 99%

See 2 more Smart Citations

Economic Impact of Hessian Fly (Diptera: Cecidomyiidae) on Spring Wheat in Oregon and Additive Yield Losses with Fusarium Crown Rot and Lesion Nematode

Smiley¹,

Gourlie²,

Whittaker³

et al. 2004

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“…In NT systems, the soil is not disturbed before seeding, and crop residue is left on the surface of the soil, whereas in conventional tillage (CT) systems the soil is subjected to primary tillage, usually chisel or moldboard plowing before planting, and little crop residue is left on the soil surface (Stinner and House 1990). Hessian ßy abundance can be affected by tillage practices (Chapin et al 1992, Zeiss et al 1993, Clement et al 2003. No-tillage results in more surface residue, including Hessian ßy-infested wheat stubble, and may allow greater survival of the pest, resulting in increased population densities relative to CT (Pike et al 1993).…”

mentioning

confidence: 99%

Impact of Tillage Practices on Hessian Fly-Susceptible and Resistant Spring Wheat Cultivars

Conte

Bosque‐Pérez

Schotzko

et al. 2005

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Hessian fly, Mayetiola destructor (Say), is a residue-borne pest of spring wheat that can become important in reduced tillage production systems. The relative abundance of Hessian fly was examined on spring wheat cultivars grown under conventional tillage (CT) and no-tillage (NT) practices in northern Idaho from 2000 to 2002. Six cultivars were tested: Hessian fly-susceptible 'Penawawa' and'Westbred 936' and -resistant (H3 gene) 'Wawawai', 'Jefferson', 'Hank', and 'Westbred 926.' Hessian fly egg densities were not significantly different among treatments, indicating ovipositing females showed no preference for tillage treatment or cultivar. Mean number of Hessian fly puparia per plant was significantly greater in CT plots during the last sampling in 2000; however, in 2001, NT plots had significantly more puparia than CT plots. Tillage had no significant effect on mean Hessian fly per plant in 2002. Significantly more puparia were observed on susceptible compared with resistant cultivars in 2000 and 2002. In 2001, susceptible Penawawa had significantly more puparia than resistant cultivars, whereas puparial densities on susceptible Westbred 936 were higher than on resistant cultivars other than Wawawai. Yield and 100-seed weight were not affected by tillage treatment. Significant variation in yield among cultivars was observed only in 2000, when fly-resistant Hank yielded the highest. Hank had the highest 100-seed weight in 2000 and 2001, whereas Penawawa and Jefferson had the lowest 100-seed weights each year. Reduced tillage had no consistent effect on spring wheat yield or abundance of Hessian fly under the conditions of our trials, which evaluated small plots.

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A preview of perennial grain agriculture: knowledge gain from biotic interactions in natural and agricultural ecosystems

et al. 2017

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Abstract. Compared to their annual analogues, perennial grain cropping systems provide various beneficial attributes for the environment and ecosystem services related to resource use efficiency, soil erosion, and soil conservation. However, there is only limited understanding of the multiple biotic interactions in perennial cropping systems and their potential effects on the crop, involving plant growth-promoting and pathogenic microorganisms, beneficial and detrimental faunal organisms below-and above-ground, weeds, and overall biodiversity effects. We use information from studies carried out in managed and natural perennial systems of analogous structure such as perennial energy crop production systems and grasslands to highlight and specify biotic interactions and processes, which potentially constitute advantages and constraints in developing perennial grain cropping systems. Concerning the relevance of soil microorganisms and potential perennial crop breeding goals, we focus on a range of plant-microbe interactions in the rhizosphere involved in biofertilization, phytostimulation, and biological control of soil pathogens. We consider relationships within the faunal community emphasizing arthropod pests and their natural enemies, as well as crop-weed interactions. Based on these outcomes and in comparison with annual systems, we discuss and compile benefits, options, and limitations of management of crop-associated biotic interactions and biodiversity, which might contribute to reproducible and sustainable effects of perennial grain crop productivity. We conclude that management strategies for perennial grain cropping systems depend much more on ecological processes and interactions operating in natural ecosystems than those in annual cropping systems. Consequently, the use of agrochemicals for pest, weed, and disease control, as well as the use of synthetic fertilizers, counteracts the principle functions of the system and would strongly degrade the potential of biotic benefits. We also found that there is only vague information on the long-term productivity and cultivation period of perennial grain crops, the specific management operations of replacement, and the potential development and management of weed and pest populations. Overall, an advanced understanding of interactions between the crop and its biotic environment provides the opportunity to manipulate specific functional traits of crop-associated organisms for improved management and crop productivity, but significant research challenges for implementation of perennial grain crops still remain.

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Cereal Aphid and Natural Enemy Populations in Cereal Production Systems in Eastern Washington

Cited by 17 publications

References 12 publications

Economic Impact of Hessian Fly (Diptera: Cecidomyiidae) on Spring Wheat in Oregon and Additive Yield Losses with Fusarium Crown Rot and Lesion Nematode

Economic Impact of Hessian Fly (Diptera: Cecidomyiidae) on Spring Wheat in Oregon and Additive Yield Losses with Fusarium Crown Rot and Lesion Nematode

Impact of Tillage Practices on Hessian Fly-Susceptible and Resistant Spring Wheat Cultivars

A preview of perennial grain agriculture: knowledge gain from biotic interactions in natural and agricultural ecosystems

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