Pheromone-Based Monitoring of &lt;I&gt;Pseudococcus maritimus&lt;/I&gt; (Hemiptera: Pseudococcidae) Populations in Concord Grape Vineyards

Bahder, Brian W.; Naidu, Rayapati A.; Daane, Kent M.; Millar, Jocelyn G.; Walsh, Douglas B.

doi:10.1603/ec12138

Cited by 22 publications

(8 citation statements)

References 41 publications

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“…ficus have one, two, three, and four to six generations annually, respectively (6,37,60,76), and such species-specific variability in number of generations can play a significant role in the spread of ampeloviruses. Thus, a comprehensive monitoring and sampling program (60) involving diagnostic methods (42) and synthetic sex pheromones (11,114) for the collection and identification of mealybug species in vineyards can lead to a better understanding of ampelovirus epidemics. Vector feeding behavior, vine-to-vine movement, presence of ampeloviruses as single or mixed infections in source grapevines, age of grapevine at which virus acquisition or inoculation occurs, and cultivar preferences can contribute additively to the field spread of ampeloviruses.…”

Section: Dissemination Of Glravsmentioning

confidence: 99%

Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

et al. 2014

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Grapevine (Vitis spp.) is one of the most widely grown fruit crops in the world. It is a deciduous woody perennial vine for which the cultivation of domesticated species began approximately 6,000 to 8,000 years ago in the Near East. Grapevines are broadly classified into red- and white-berried cultivars based on their fruit skin color, although yellow, pink, crimson, dark blue, and black-berried cultivars also exist. Grapevines can be subject to attacks by many different pests and pathogens, including graft-transmissible agents such as viruses, viroids, and phytoplasmas. Among the virus and virus-like diseases, grapevine leafroll disease (GLD) is by far the most widespread and economically damaging viral disease of grapevines in many regions around the world. The global expansion of the grape and wine industry has seen a parallel increase in the incidence and economic impact of GLD. Despite the fact that GLD was recognized as a potential threat to grape production for several decades, our knowledge of the nature of the disease is still quite limited due to a variety of challenges related to the complexity of this virus disease, the association of several distinct GLD-associated viruses, and contrasting symptoms in red- and white-berried cultivars. In view of the growing significance of GLD to wine grape production worldwide, this feature article provides an overview of the state of knowledge on the biology and epidemiology of the disease and describes management strategies currently deployed in vineyards.

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Section: Dissemination Of Glravsmentioning

confidence: 99%

Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

et al. 2014

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“…All vineyards in this survey had established populations of Ps. maritimus (5) and Pa. corni were observed in each Concord vineyards sampled. One vine that tested positive for GLRaV-3 also had Pa. corni on its trunk.…”

Section: Species Size Primer Name Sequence (5'-3')*mentioning

confidence: 99%

A Survey for Grapevine Viruses in Washington State ‘Concord’ (Vitis × labruscana L.) Vineyards

Bahder

Alabi²,

Poojari³

et al. 2013

Plant Health Progress

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Within the United States, Washington is the number one producer of ‘Concord’ grapes and the number two producer of wine grapes. Previous studies in wine grapes revealed the presence of twelve different viruses in Washington vineyards. Despite what is known about viruses in wine grapes in Washington, virtually no studies have focused on viruses in Concord vineyards. To further understand the epidemiology of viruses in Washington State, a survey of Concord grapes was conducted in 2010 and 2011. Five hundred Concord vines were sampled and tested for the presence of virus, and five different viruses were found among 92 virus-positive samples. The most common virus found was Grapevine leafroll-associated virus 3 (51 samples), followed by Grapevine fanleaf virus (24 samples), Grapevine leafroll-associated virus 4 (nine samples), Grapevine leafroll-associated virus 2 (four samples), and Grapevine leafroll-associated virus 9 (four samples). The presence of viruses in Concord vineyards is of great concern for growers due to likely movement of virus diseases from Concord grapes to wine grapes that might result in economic losses to the grape industry. Accepted for publication 19 May 2012. Published 5 August 2013.

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“…maritimus [ 44 ], and Ps. longispinus [ 45 ], and a series of studies showed that trap counts can be correlated to population density and crop damage [ 18 , 46 , 47 , 48 ].…”

Section: Introductionmentioning

confidence: 99%

Development of a Mating Disruption Program for a Mealybug, Planococcus ficus, in Vineyards

Daane

Yokota

Walton

et al. 2020

Insects

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The vine mealybug (VMB), Planococcus ficus (Hemiptera: Pseudococcidae), is a key insect pest of vineyards, and improvements in sustainable control of this pest are needed to meet increasing consumer demand for organically farmed products. One promising option is mating disruption. In a series of experiments conducted from 2004 to 2007, we tested the effects of mating disruption on trap captures of Pl. ficus males in pheromone-baited traps, on Pl. ficus numbers and age structure on vines, and on damage to grape clusters. From 2004 to 2005, the effects of dispenser load (mg active ingredient per dispenser) were also assessed, and dispensers were compared to a flowable formulation. Across all trials, mating disruption consistently reduced pheromone trap captures and often reduced mealybug numbers on vines and/or crop damage, regardless of the pheromone dose that was applied. Reductions in Pl. ficus densities in mating disruption plots were not accompanied by clear effects on mealybug population age structure; however, production of non-viable ovisacs by unmated females may have obscured differences in proportional representation of ovisacs. Pheromone trap captures were never lowered to zero (often called trap shut down), possibly because trials were conducted in vineyards with unusually high Pl. ficus densities. Trap-capture patterns in both treated and control plots commonly began low in April–May, increased in mid-July or August, and often decreased in September–October when post-harvest insecticides were applied. During the four-year trial, the release rate from plastic sachet dispensers was improved by industry cooperators as pheromone was released too quickly (2004) or not completely released during the season (2005–2006). The flowable formulation performed slightly better than dispensers at the same application dose. Results over all years suggest season-long coverage or late-season coverage may be as or more important than dose per hectare. Development of a dispenser with optimized season-long pheromone emission or targeted seasonal periods should be a future goal.

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Pheromone-Based Monitoring of <I>Pseudococcus maritimus</I> (Hemiptera: Pseudococcidae) Populations in Concord Grape Vineyards

Cited by 22 publications

References 41 publications

Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

Grapevine Leafroll: A Complex Viral Disease Affecting a High-Value Fruit Crop

A Survey for Grapevine Viruses in Washington State ‘Concord’ (Vitis × labruscana L.) Vineyards

Development of a Mating Disruption Program for a Mealybug, Planococcus ficus, in Vineyards

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