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By National Research Council, Division on Earth and Life Studies, Board on Agriculture and Natural Resources, Committee on California Agriculture and Natural Resources

The glassy-winged sharpshooter is without doubt one of the newer invasive pests to afflict California agriculture. The insect transmits a bacterial pathogen that reasons Pierce's illness, which has impaired creation of wine, desk, and raisin grapes in California. The file recommends strengthening the method and the priorities for examine funded through nation firms and wine teams to handle Pierce's ailment and its vector. examine might be involved in picking out possible suggestions for controlling the unfold of the affliction and supplying sustainable methods which are adaptable and reasonable over the long run. a number of avenues of analysis be pursued extra intensely together with the genetic make-up of the pathogen that triggers Pierce's disorder, figuring out the mechanisms that make grapes proof against the illness, the chances of introducing predator enemies to the sharpshooter, and new how one can deal with the planting of vegetation to aid stay away from unfold of the illness.

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California Agricultural Research Priorities: Pierce's Disease

The glassy-winged sharpshooter is without doubt one of the newer invasive pests to afflict California agriculture. The insect transmits a bacterial pathogen that reasons Pierce's illness, which has impaired creation of wine, desk, and raisin grapes in California. The record recommends strengthening the method and the priorities for study funded via country corporations and wine teams to handle Pierce's disorder and its vector.

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Extra resources for California Agricultural Research Priorities: Pierce's Disease

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According to one industry representative, replanting is occurring at a fraction of the rate needed to replenish the acreage so far affected by PD. Mature vineyards are also popular among tourist attractions and tourism is a significant source of revenue for the wine industry. Nongovernmental Organizations The group of NGOs that has responded to the PD–GWSS threat is heterogeneous. Agricultural commodity groups, such as commodity boards, could be classified as NGOs, despite their affinity for industry objectives.

In this case, the cost reflects replanting 2% of 565 vines/acre, or approximately 11 vines/acre. In addition to the costs that are directly attributable to PD, grape production costs can involve controlling GWSS as a vector. Pest monitoring must be implemented, and that could involve the placement of traps or sweeping the edges of a vineyard with a net to quantify GWSS infestations. Economic information on the density and number of traps to be used and on the labor costs of monitoring are not available.

27 Cost/Vine Table 1-3 Estimated Vineyard Establishment and Replanting Cost $378 $585 $736 $834 $1,227 $1,013 $381 $621 Amortized Cost/Acre 519 871 1,089 566 908 622 622 565 Vines/Acre $22 $64 $256 $47 $103 $105 $3 $18 Replanting Cost 5% 2% 5% 2% 4% 5% 2% 2% Vines Replanted 30 PIERCE’S DISEASE AND THE GLASSY-WINGED SHARPSHOOTER 31 vines in a vineyard; hence, for the San Joaquin Valley wine estimates, the cost is $18/acre to replant 2% of the vineyard. In this case, the cost reflects replanting 2% of 565 vines/acre, or approximately 11 vines/acre.

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