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Use of Ground Covers to Control Three-Cornered Alfalfa Hopper, Spissistilus festinus (Hemiptera: Membracidae), and Other Suspected Vectors of Grapevine Red Blotch Virus.
J Econ Entomol. 2021 08 05; 114(4):1462-1469.JE

Abstract

Grapevine red blotch virus (GRBV) is the causal agent of grapevine red blotch disease, which affects wine grapes and leads to reduced crop yield and quality. The pathogen-plant-vector relationship of GRBV is not well understood; however, some possible vectors have been identified: Caladonus coquilletti (Van Duzee; Hemiptera: Cicadellidae), Colladonus reductus (Van Duzee; Hemiptera: Cicadellidae), Erythroneura spp., Melanoliarus sp. (Hemiptera: Cixiidae), Osbornellus borealis DeLong. & Mohr (Hemiptera: Cicadellidae), Scaphytopius granticus (Ball; Hemiptera: Cicadellidae), Spissistilus festinus (Say). Of these species, S. festinus has been shown to transmit the virus to uninfected grapevines, making it of particular interest. Since the pathogen-plant-vector relationship of GRBV is not yet completely understood, pesticide use is not necessarily the best way to manage these possible vectors. Here we test if ground cover removal, by discing in spring, could reduce the activity of potential GRBV vectors. We show that S. festinus presence in the canopy was reduced in disc rows compared to just mowing the ground vegetation, whereas there were no differences in presence in the canopy between disc and mow rows of the other possible insect vectors. Erythroneura elegantula (Osborn; Hemiptera: Cicadellidae), a common pest of grapevines but not a candidate GRBV vector, was found to have higher densities in the canopy in disc rows compared to mow rows, an effect possibly mediated by changes in vine vigor associated with ground covers. We conclude that if S. festinus is a primary vector of GRBV, discing ground covers in early spring may be a viable way to reduce their presence in the vine canopy.

Authors+Show Affiliations

Department of Environmental Science, Policy and Management, University of California - Berkeley, 130 Mulford Hall #3114, Berkeley, CA 94720, USA.Department of Environmental Science, Policy and Management, University of California - Berkeley, 130 Mulford Hall #3114, Berkeley, CA 94720, USA.Department of Environmental Science, Policy and Management, University of California - Berkeley, 130 Mulford Hall #3114, Berkeley, CA 94720, USA.Department of Environmental Science, Policy and Management, University of California - Berkeley, 130 Mulford Hall #3114, Berkeley, CA 94720, USA.Dept. Entomology, University of California - Riverside, 900 University Ave., Riverside, CA 92521, USA.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

34132345

Citation

Billings, Alexis C., et al. "Use of Ground Covers to Control Three-Cornered Alfalfa Hopper, Spissistilus Festinus (Hemiptera: Membracidae), and Other Suspected Vectors of Grapevine Red Blotch Virus." Journal of Economic Entomology, vol. 114, no. 4, 2021, pp. 1462-1469.
Billings AC, Flores K, McCalla KA, et al. Use of Ground Covers to Control Three-Cornered Alfalfa Hopper, Spissistilus festinus (Hemiptera: Membracidae), and Other Suspected Vectors of Grapevine Red Blotch Virus. J Econ Entomol. 2021;114(4):1462-1469.
Billings, A. C., Flores, K., McCalla, K. A., Daane, K. M., & Wilson, H. (2021). Use of Ground Covers to Control Three-Cornered Alfalfa Hopper, Spissistilus festinus (Hemiptera: Membracidae), and Other Suspected Vectors of Grapevine Red Blotch Virus. Journal of Economic Entomology, 114(4), 1462-1469. https://doi.org/10.1093/jee/toab115
Billings AC, et al. Use of Ground Covers to Control Three-Cornered Alfalfa Hopper, Spissistilus Festinus (Hemiptera: Membracidae), and Other Suspected Vectors of Grapevine Red Blotch Virus. J Econ Entomol. 2021 08 5;114(4):1462-1469. PubMed PMID: 34132345.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Use of Ground Covers to Control Three-Cornered Alfalfa Hopper, Spissistilus festinus (Hemiptera: Membracidae), and Other Suspected Vectors of Grapevine Red Blotch Virus. AU - Billings,Alexis C, AU - Flores,Kristen, AU - McCalla,Kelsey A, AU - Daane,Kent M, AU - Wilson,Houston, PY - 2021/02/03/received PY - 2021/6/17/pubmed PY - 2021/10/26/medline PY - 2021/6/16/entrez KW - Colladonus KW - Scaphytopius KW - Spissistilus KW - grapevine red blotch disease KW - ground covers SP - 1462 EP - 1469 JF - Journal of economic entomology JO - J Econ Entomol VL - 114 IS - 4 N2 - Grapevine red blotch virus (GRBV) is the causal agent of grapevine red blotch disease, which affects wine grapes and leads to reduced crop yield and quality. The pathogen-plant-vector relationship of GRBV is not well understood; however, some possible vectors have been identified: Caladonus coquilletti (Van Duzee; Hemiptera: Cicadellidae), Colladonus reductus (Van Duzee; Hemiptera: Cicadellidae), Erythroneura spp., Melanoliarus sp. (Hemiptera: Cixiidae), Osbornellus borealis DeLong. & Mohr (Hemiptera: Cicadellidae), Scaphytopius granticus (Ball; Hemiptera: Cicadellidae), Spissistilus festinus (Say). Of these species, S. festinus has been shown to transmit the virus to uninfected grapevines, making it of particular interest. Since the pathogen-plant-vector relationship of GRBV is not yet completely understood, pesticide use is not necessarily the best way to manage these possible vectors. Here we test if ground cover removal, by discing in spring, could reduce the activity of potential GRBV vectors. We show that S. festinus presence in the canopy was reduced in disc rows compared to just mowing the ground vegetation, whereas there were no differences in presence in the canopy between disc and mow rows of the other possible insect vectors. Erythroneura elegantula (Osborn; Hemiptera: Cicadellidae), a common pest of grapevines but not a candidate GRBV vector, was found to have higher densities in the canopy in disc rows compared to mow rows, an effect possibly mediated by changes in vine vigor associated with ground covers. We conclude that if S. festinus is a primary vector of GRBV, discing ground covers in early spring may be a viable way to reduce their presence in the vine canopy. SN - 1938-291X UR - https://www.unboundmedicine.com/medline/citation/34132345/Use_of_Ground_Covers_to_Control_Three_Cornered_Alfalfa_Hopper_Spissistilus_festinus__Hemiptera:_Membracidae__and_Other_Suspected_Vectors_of_Grapevine_Red_Blotch_Virus_ DB - PRIME DP - Unbound Medicine ER -