Introduced parasitic wasps could control glassy-winged sharpshooter

Pilkington, Leigh J.; Irvin, Nicola A.; Boyd, Elizabeth A.; Hoddle, Mark S.; Triapitsyn, Serguei V.; Carey, Bryan; Jones, Walker A.; David, Morgan J.W.

doi:10.3733/ca.v059n04p223

Cited by 52 publications

(35 citation statements)

References 8 publications

(9 reference statements)

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“…Naturally occurring populations of G. ashmeadi in California have been augmented with mass reared individuals from populations found in the southeastern USA and northeastern Mexico (CDFA, 2003). However, average parasitism rates of H. vitripennis eggs in spring and summer are only 12-19% and may not be suYcient to provide acceptable control of this pest in California (Pilkington et al, 2005). Methods to enhance the suppression of H. vitripennis populations by G. ashmeadi require investigation, and resource provisionment in the Weld may be one method that could increase parasitoid eYcacy.…”

Section: Formally Namedmentioning

confidence: 99%

“…Increased parasitoid longevity from resource subsidization may be most advantageous in early spring when parasitoid populations are low and hosts are scarce (Triapitsyn et al, 2003;Pilkington et al, 2005). Deliberate sowing of useful Xowering plants that would provide food for G. ashmeadi may further enhance parasitism rates by reducing foraging time and energy expenditure associated with searching for nutrition, and by increasing the time available for host location and exploitation (Sirot and Bernstein, 1997).…”

Section: A U T H O R ' S P E R S O N a L C O P Ymentioning

confidence: 99%

“…Homalodisca coagulata (Say) (Takiya et al, 2006)] (Pilkington et al, 2005). H. vitripennis is native to the southeast United States, established in California around 1990 (Sorensen and Gill, 1996), and successfully invaded French Polynesia (Tahiti) in 1999, Hawaii in 2004, and Easter Island in 2005(Pilkington et al, 2005.…”

Section: Formally Namedmentioning

confidence: 99%

“…H. vitripennis is native to the southeast United States, established in California around 1990 (Sorensen and Gill, 1996), and successfully invaded French Polynesia (Tahiti) in 1999, Hawaii in 2004, and Easter Island in 2005(Pilkington et al, 2005. H. vitripennis is currently present in 23 of 58 Californian counties (CDFA, 2005) and is a major threat to many agricultural and ornamental plant industries due to its ability to vector the xylem dwelling plant pathogenic bacterium, Xylella fastidiosa p e r s o n a l c o p y Wells et al DiVerent strains of Xylella cause scorch-like diseases in a wide range of host plants including grapes (worth $3.2 billion [US] to California), almonds ($1.6 billion), stone fruit ($905 million), and X. fastidiosa strains outside of the USA threaten citrus ($1.05 billion) (CDFA, 2005).…”

Section: Formally Namedmentioning

confidence: 99%

“…fecundity or the Wtness of resulting progeny. G. ashmeadi is the key natural enemy of H. vitripennis egg masses in California (Pilkington et al, 2005) and was chosen for these studies investigating food resources on parasitoid Wtness. Consequently, work presented here investigated the inXuence of honey-water, C. hesperidum honeydew, and nectar from F. esculentum and L. maritima Xowers on Wtness of G. ashmeadi.…”

Section: Formally Namedmentioning

confidence: 99%

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Evaluation of floral resources for enhancement of fitness of Gonatocerus ashmeadi, an egg parasitoid of the glassy-winged sharpshooter, Homalodisca vitripennis

Irvin

Hoddle

2007

Biological Control

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Section: Formally Namedmentioning

confidence: 99%

Section: A U T H O R ' S P E R S O N a L C O P Ymentioning

confidence: 99%

Section: Formally Namedmentioning

confidence: 99%

Section: Formally Namedmentioning

confidence: 99%

Section: Formally Namedmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of floral resources for enhancement of fitness of Gonatocerus ashmeadi, an egg parasitoid of the glassy-winged sharpshooter, Homalodisca vitripennis

Irvin

Hoddle

2007

Biological Control

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Molecular profiling of proteolytic and lectin transcripts in Homalodisca vitripennis (Hemiptera: Auchenorrhyncha: Cicadellidae) feeding on sunflower and cowpea

Coudron

Brandt

Hunter

2007

Arch Insect Biochem Physiol

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Homalodisca vitripennis Germar 1821 (Hemiptera: Cicadellidae) [Takiya et al. (2006) Ann Entomol Soc Am 99:648-655; syn. H. coagulata (Say)] salivary gland and gut EST libraries were used to isolate cDNA fragments of the gene transcripts encoding for cathepsin L, asparaginyl endopeptidase, cathepsin B, metalloendopeptidase, cathepsin D, multicatalytic endopeptidase, and a sugar-binding C-type lectin. Transcript levels were evaluated in immature and adult H. vitripennis feeding on sunflower (Helianthus annuus) or cowpea (Vigna unguiculata). Northern blot hybridization results showed that expression of most of the transcripts were similar for all developmental stages and feeding on the two diets examined. However, the expression of the transcript for asparaginyl endopeptidase was less expressed in sunflower-fed adult females compared to sunflower-fed immatures. Also, the expression of the C-type lectin transcript was up-regulated in adults compared to immatures when fed on either diet. Documenting both the presence and variation of transcript expression involved in putative digestive proteolysis in this xylem-feeding leafhopper is noteworthy and aids efforts to design specific diet formulations for mass production of hosts and parasitoids to be used as effective biological control measures.

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Insecticide resistance in California populations of the glassy‐winged sharpshooter Homalodisca vitripennis

Byrne

Redak

2021

Pest Management Science

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BACKGROUND The glassy‐winged sharpshooter, Homalodisca vitripennis (Germar), is a primary vector of Pierce's disease of grapes in California. Systemic imidacloprid treatments have been the mainstay of area‐wide treatment programs that were established in the Central Valley (Kern and Tulare Counties) and Southern California (Riverside County) during the 1990s to combat the pest. The programs helped to suppress populations on citrus, a major sharpshooter host, to levels that significantly reduced migration into adjacent vineyards. However, beginning in 2012, there has been a resurgence of glassy‐winged sharpshooter populations in Kern and Tulare counties, and hitherto successful treatment strategies have not been as effective. This study investigated the possibility that insecticide resistance was a contributing factor to the population resurgence. RESULTS Topical application bioassays detected high levels of resistance to imidacloprid in Kern and Tulare populations, and lower levels of resistance (perhaps due to cross‐resistance) to the foliar neonicotinoid acetamiprid (20‐fold), the pyrethroid fenpropathrin (7.4‐fold), and the butenolide flupyradifurone (4‐fold). Samples of glassy‐winged sharpshooters from citrus groves under organic management also exhibited high levels of imidacloprid resistance. CONCLUSION The long‐term use of imidacloprid has selected for resistance in glassy‐winged sharpshooters. The most resistant populations also exhibited resistance to the foliar neonicotinoid acetamiprid, the pyrethroid fenpropathrin, and the butenolide flupyradifurone. High levels of imidacloprid resistance in insects sampled from organic groves indicate that resistant insects are migrating from nearby conventional groves, which could compromise the control of sharpshooters in organic systems with insecticides affected by cross‐resistance. © 2021 Society of Chemical Industry

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Introduced parasitic wasps could control glassy-winged sharpshooter

Cited by 52 publications

References 8 publications

Evaluation of floral resources for enhancement of fitness of Gonatocerus ashmeadi, an egg parasitoid of the glassy-winged sharpshooter, Homalodisca vitripennis

Evaluation of floral resources for enhancement of fitness of Gonatocerus ashmeadi, an egg parasitoid of the glassy-winged sharpshooter, Homalodisca vitripennis

Molecular profiling of proteolytic and lectin transcripts in Homalodisca vitripennis (Hemiptera: Auchenorrhyncha: Cicadellidae) feeding on sunflower and cowpea

Insecticide resistance in California populations of the glassy‐winged sharpshooter Homalodisca vitripennis

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