California mealybugs can spread grapevine leafroll disease
AuthorsDeborah A. Golino
Susan T. Sim
Hilgardia 56(6):196-201. DOI:10.3733/ca.v056n06p196. November 2002.
UC Davis's Foundation Plant Materials Service (FPMS) maintains the disease-tested, professionally identified collection of grape scion and rootstock varieties, which is the core of the California Grapevine Registration and Certification Program. In 1992; newly developed serological testing techniques revealed the presence of grapevine leafroll-associated viruses (GLRaVs) in previously healthy vines in an older foundation propagating block, indicating active and recent virus spread. FPMS responded by increasing isolation distances and implementing a comprehensive virus screening program using the new methodology. The critical problem was the lack of information on leafroll virus epidemiology. When the distribution of infected plants in the old vineyard was mapped, new infections were frequently adjacent to known diseased grapevines. This study examined the ability of mealybugs, a putative leafroll vector, to transmit this group of viruses. We were able to confirm that four species found in California — obscure, longtailed, citrus and grape mealybug — can transmit GLRaV-3 isolates. This is the first experimental evidence of grapevine leafroll virus transmission by obscure and grape mealybug. In addition, we report for the first time that GLRaV-5 can be transmitted by longtailed mealybug.
Alley L, Golino D. The origins of the grape program at Foundation Plant Materials Service. Proc 50th Annu Am Soc Enol Viticulture meeting, Seattle, WA. Am J Enol Vitic. 2000. 51:222-30.
Cabaleiro C, Segura A. Field transmission of grapevine leafroll associated virus 3 (GLRaV-3) by the mealybug Planococcus citri.. Plant Dis. 1997. 81:283-7. https://doi.org/10.1094/PDIS.19126.96.36.1993
Engelbrecht DJ, Kasdorf GGF. Field spread of corky bark, fleck, leafroll and Shiraz decline diseases and associated viruses in South African grapevines. Phytolactica. 1990. 22:347-54.
Goheen A. Virus diseases and vine selection. Am J Enol Vitic. 1989. 40:67-72.
Golino D. The Davis grapevine virus collection. Am J Enol Vitic. 1992. 43:200-5.
Gonsalves D. Progress towards understanding the genomic organization and expression of grapevine closteroviruses. 2000. pp.6-7. Proc 13th International Committee on Study of Virus and Virus-like Diseases of Grapevine, Adelaide, Australia
Habili N, Fazeli DF, Ewart A, et al. Natural spread and molecular analysis of grapevine leafroll-associated virus 3 in Australia. Phytopathol. 1995. 85:1418-22. https://doi.org/10.1094/Phyto-85-1418
Jordan D, Peterson C, Morgan L, Segaran A. Spread of grapevine leafroll and its associated virus in New Zealand vineyards. 1993. pp.113-4. Proc 12th International Committee on Study of Virus and Virus-like Diseases of Grapevine, Montreauz, Switzerland
Martelli GP. Graft-transmissible Diseases of Grapevines: Handbook for Detection and Diagnosis.. 1993. UN FAO, Rome, Italy, 262 p.
Martelli GP. Major graft-transmissible diseases of grapevines: Nature, diagnosis and sanitation. Proc 50th Annu Am Soc Encl Viticulture meeting, Seattle, WA. Am J Enol Vitic. 2000. 51:231-6.
Rosciglione B, Casteliano MA. Further evidence that mealybugs can transmit grapevine virus A (GVA) to herbaceous hosts. Phytopath Medit. 1985. 24:186-8.
Rowhani A. Use of F(ab')2 antibody fragment in ELISA for the detection of grapevine viruses. Am J Enol Vitic. 1992. 43:38-40.
Rowhani A, Biardi L, Johnson R, et al. Simplified sample preparation method and one-tube RT-PCR for grapevine viruses. 2000. Proc 13th International Committee on Study of Virus and Virus-like Diseases of the Grapevine, Adelaide, Australia, p 148.
Rowhani A, Golino D. ELISA test reveals new information about leafroll disease. Cal Ag. 1995. 49(1):26-9.
Tanne E, Ben-Dov Y, Raccah B. Transmission of closterovirus-like particles by mealybugs (Pseudococcidea) in Israel. Phytoparasitica. 1989. 17(1):64-
Teliz D, Gonsalves D, Hu JS, Hummer DJ. Detection of grapevine leafroll associated closteroviruses in recently infected tissue in New York and spread of the disease in Mexico. Phytoparasitica. 1989. 17(1):68-9.
Also in this issue:Premating and Postmating Isolation among Populations of Metaseiulus occidentalis (Nesbitt) (Acarina: Phytoseiidae)
Research budget cuts challenge ANR
The buzz on mosquito, malaria genetic codes
Centers to combat “agro-terror”
State budget calls for 10% research cut
UC offers online course for grape pest advisors
SOD pathogen hits coast redwoods, Douglas fir
Beahrs international program trains professionals in sustainable development
Water management practices can affect salinity in rice fields
Rice is more sensitive to salinity than previously thought
Proper harvest timing can improve returns for intermountain alfalfa