Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> Mealybug

Mealybugs cause economic loss to vineyards through physical damage, fouling fruit and leaves with honeydew, and the transmission of viruses. <i>Planococcus ficus</i> is one of several mealybug species in vineyards, and one that causes economic damage over a relatively large global range....

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Main Authors: Rachel P. Naegele, Peter Cousins, Kent M. Daane
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/11/2/86
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author Rachel P. Naegele
Peter Cousins
Kent M. Daane
author_facet Rachel P. Naegele
Peter Cousins
Kent M. Daane
author_sort Rachel P. Naegele
collection DOAJ
description Mealybugs cause economic loss to vineyards through physical damage, fouling fruit and leaves with honeydew, and the transmission of viruses. <i>Planococcus ficus</i> is one of several mealybug species in vineyards, and one that causes economic damage over a relatively large global range. To develop novel management tools, host resistance to <i>P. ficus</i>, which has not previously been identified for any grape cultivars, was studied. Ten grape lines (species, cultivars, and rootstocks) were evaluated for <i>P. ficus</i> resistance across two separate potted plant assays. Significant differences were detected among cultivars and rootstocks in the recorded number of <i>P. ficus</i> juveniles, adults, and egg sacs. Cabernet Sauvignon and Chardonnay were two of the most favorable grape cultivars for mealybug population growth, whereas rootstocks IAC 572, 10-17A, and RS-3 all demonstrated some level of resistance. Southern fire ant (<i>Solenopsis xyloni</i>) was positively associated with mealybug populations, but did not have a negative effect on the observed presence of other arthropod species including potential predators.
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spelling doaj.art-4706b5e448fc4b2a8b3ab6c453711f272022-12-21T19:10:47ZengMDPI AGInsects2075-44502020-01-011128610.3390/insects11020086insects11020086Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> MealybugRachel P. Naegele0Peter Cousins1Kent M. Daane2USDA ARS, San Joaquin Valley Agricultural Sciences Center, Parlier, CA 93611, USAE. &amp; J. Gallo Winery, Modesto, CA 95354, USADepartment of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA 94720-3114, USAMealybugs cause economic loss to vineyards through physical damage, fouling fruit and leaves with honeydew, and the transmission of viruses. <i>Planococcus ficus</i> is one of several mealybug species in vineyards, and one that causes economic damage over a relatively large global range. To develop novel management tools, host resistance to <i>P. ficus</i>, which has not previously been identified for any grape cultivars, was studied. Ten grape lines (species, cultivars, and rootstocks) were evaluated for <i>P. ficus</i> resistance across two separate potted plant assays. Significant differences were detected among cultivars and rootstocks in the recorded number of <i>P. ficus</i> juveniles, adults, and egg sacs. Cabernet Sauvignon and Chardonnay were two of the most favorable grape cultivars for mealybug population growth, whereas rootstocks IAC 572, 10-17A, and RS-3 all demonstrated some level of resistance. Southern fire ant (<i>Solenopsis xyloni</i>) was positively associated with mealybug populations, but did not have a negative effect on the observed presence of other arthropod species including potential predators.https://www.mdpi.com/2075-4450/11/2/86host plant resistancepest management<i>planococcus ficus</i>vineyard
spellingShingle Rachel P. Naegele
Peter Cousins
Kent M. Daane
Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> Mealybug
Insects
host plant resistance
pest management
<i>planococcus ficus</i>
vineyard
title Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> Mealybug
title_full Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> Mealybug
title_fullStr Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> Mealybug
title_full_unstemmed Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> Mealybug
title_short Identification of <i>Vitis</i> Cultivars, Rootstocks, and Species Expressing Resistance to a <i>Planococcus</i> Mealybug
title_sort identification of i vitis i cultivars rootstocks and species expressing resistance to a i planococcus i mealybug
topic host plant resistance
pest management
<i>planococcus ficus</i>
vineyard
url https://www.mdpi.com/2075-4450/11/2/86
work_keys_str_mv AT rachelpnaegele identificationofivitisicultivarsrootstocksandspeciesexpressingresistancetoaiplanococcusimealybug
AT petercousins identificationofivitisicultivarsrootstocksandspeciesexpressingresistancetoaiplanococcusimealybug
AT kentmdaane identificationofivitisicultivarsrootstocksandspeciesexpressingresistancetoaiplanococcusimealybug