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Influence of Riparian Habitat and Ground Covers on Threecornered Alfalfa Hopper (Hemiptera: Membracidae) Populations in Vineyards.
J Econ Entomol. 2020 10 16; 113(5):2354-2361.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. While some virus spread can be attributed to the propagation of infected plant material, a greenhouse assay recently demonstrated that the threecornered alfalfa hopper (Membracidae: Spissistilus festinus Say) can transmit GRBV between grapevines. While S. festinus is not considered an economic pest of wine grapes, this species is present in California vineyards and their feeding can cause petiole girdling. Recent surveys have noted a correlation between S. festinus populations and GRBV-positive vines in vineyard areas adjacent to riparian habitat. Here, S. festinus populations were monitored over a 2-yr period at multiple vineyard sites adjacent to riparian habitats. At each site, insects were sampled from ground covers and the vine canopy at the vineyard edge and interior, and vines in both locations were evaluated for petiole girdling. Results indicate that there was no difference in abundance of S. festinus at the vineyard edge and interior. Populations in the vine canopy were highest in the late spring and early summer, and this was followed by the appearance of petiole girdling, indicating a key period of potential GRBV transmission. Furthermore, activity in the vine canopy appears to be amplified when the quality of ground covers is reduced as the season progresses. That said, overall populations of S. festinus were relatively low and additional work is needed to characterize the timing and efficiency of transmission under field conditions.

Authors+Show Affiliations

Department of Entomology, University of California-Riverside, Riverside, CA. Kearney Agricultural Research and Extension Center, Parlier, CA.Department of Environmental Science, Policy and Management, University of California-Berkeley, Berkeley, CA.Department of Environmental Science, Policy and Management, University of California-Berkeley, Berkeley, CA.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32696968

Citation

Wilson, Houston, et al. "Influence of Riparian Habitat and Ground Covers On Threecornered Alfalfa Hopper (Hemiptera: Membracidae) Populations in Vineyards." Journal of Economic Entomology, vol. 113, no. 5, 2020, pp. 2354-2361.
Wilson H, Yazdani AS, Daane KM. Influence of Riparian Habitat and Ground Covers on Threecornered Alfalfa Hopper (Hemiptera: Membracidae) Populations in Vineyards. J Econ Entomol. 2020;113(5):2354-2361.
Wilson, H., Yazdani, A. S., & Daane, K. M. (2020). Influence of Riparian Habitat and Ground Covers on Threecornered Alfalfa Hopper (Hemiptera: Membracidae) Populations in Vineyards. Journal of Economic Entomology, 113(5), 2354-2361. https://doi.org/10.1093/jee/toaa151
Wilson H, Yazdani AS, Daane KM. Influence of Riparian Habitat and Ground Covers On Threecornered Alfalfa Hopper (Hemiptera: Membracidae) Populations in Vineyards. J Econ Entomol. 2020 10 16;113(5):2354-2361. PubMed PMID: 32696968.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of Riparian Habitat and Ground Covers on Threecornered Alfalfa Hopper (Hemiptera: Membracidae) Populations in Vineyards. AU - Wilson,Houston, AU - Yazdani,Armand S, AU - Daane,Kent M, PY - 2020/04/21/received PY - 2020/7/23/pubmed PY - 2021/2/11/medline PY - 2020/7/23/entrez KW - ground cover KW - red blotch KW - riparian KW - threecornered alfalfa hopper KW - vineyard SP - 2354 EP - 2361 JF - Journal of economic entomology JO - J Econ Entomol VL - 113 IS - 5 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. While some virus spread can be attributed to the propagation of infected plant material, a greenhouse assay recently demonstrated that the threecornered alfalfa hopper (Membracidae: Spissistilus festinus Say) can transmit GRBV between grapevines. While S. festinus is not considered an economic pest of wine grapes, this species is present in California vineyards and their feeding can cause petiole girdling. Recent surveys have noted a correlation between S. festinus populations and GRBV-positive vines in vineyard areas adjacent to riparian habitat. Here, S. festinus populations were monitored over a 2-yr period at multiple vineyard sites adjacent to riparian habitats. At each site, insects were sampled from ground covers and the vine canopy at the vineyard edge and interior, and vines in both locations were evaluated for petiole girdling. Results indicate that there was no difference in abundance of S. festinus at the vineyard edge and interior. Populations in the vine canopy were highest in the late spring and early summer, and this was followed by the appearance of petiole girdling, indicating a key period of potential GRBV transmission. Furthermore, activity in the vine canopy appears to be amplified when the quality of ground covers is reduced as the season progresses. That said, overall populations of S. festinus were relatively low and additional work is needed to characterize the timing and efficiency of transmission under field conditions. SN - 1938-291X UR - https://www.unboundmedicine.com/medline/citation/32696968/Influence_of_Riparian_Habitat_and_Ground_Covers_on_Threecornered_Alfalfa_Hopper__Hemiptera:_Membracidae__Populations_in_Vineyards_ DB - PRIME DP - Unbound Medicine ER -
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