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Grape phylloxera in California

, : Grape phylloxera in California. California Agriculture 41(1-2): 10-12

The history and activity of Daktulosphaira vitifoliae on grapevines in California is briefly reviewed, the practice of grafting scions of vine varieties susceptible to the phylloxerid on to rootstocks of resistant varieties is discussed, and the discovery in Napa and Sonoma Counties is recorded of a new biotype of this insect that is able to develop on the resistant rootstock AxR-1 (a hybrid of Vitis rupestris and V. vinifera).

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Related references

Mcleod M.J.; Williams R.N.; Fickle D.S., 1991: Grape vitis riparia michaux clinton grape phylloxera daktulosphaira vitifoliae fitch insecticide evaluation for control of the foliar form of grape phylloxera 1990. Insecticide & Acaricide Tests : 37-38

D.B.nedictis, J.A.; Granett, J., 1993: Laboratory evaluation of grape roots as hosts of California grape phylloxera biotypes. Laboratory bioassays were used for rapid initial evaluation of the susceptibilities of 26 grape rootstocks to the two known California biotypes of grape phylloxera. An indicator of the population growth rate on each rootstock, the egg multiplicati...

Hawthorne, D.J.; Dennehy, T.J., 1991: Reciprocal movement of grape phylloxera (Homoptera: Phylloxeridae) alates and crawlers between two differentially phylloxera-resistant grape cultivars. Grape phylloxera, Daktulosphaira vitifoliae (Fitch), alates and crawlers (apterae) were trapped in adjacent vineyard blocks of 'Aurore' and 'Concord' grapes (Vitis spp.) in New York in 1986-1987. Aerial sticky traps were mounte...

DuYuanPeng; WangZhaoShun; YangYang; ZhaoQing; ZhaiHeng; WangZhongYue, 2008: Nodosity formation and nutrition consumption in grape cultivars with different phylloxera-resistance and infested by grape phylloxera. Nodosity formation in grapes with different resistance to grape phylloxera (<i>Daktulosphaira vitifoliae</i> Fitch) infestation was studied by potted plant test of inoculation. Number, weight, and contents of carbohydrates and proline...

Davidson, W.M.; Nougaret, R.L., 1921: The Grape Phylloxera in California. The history and distribution of Phylloxera vitifoliae, Fitch, in California are reviewed. The nomenclature and synonymy are also dealt with and the various stages are described. The life-cycle in California is probably purely parthenogenetic, and...

Granett J.; Goheen A.C.; Lider L.A., 1987: Grape phylloxera in california usa. California Agriculture 41(1-2): 10-12

Granett, J.; Walker, A.; D.B.nedictis, J.; Fong, G.; Lin, H.; Weber, E., 1996: California grape phylloxera more variable than expected. A review is presented of recent discoveries that the DNA and feeding behaviour of the grape pest Daktulosphaira vitifoliae [Viteus vitifoliae] are relatively diverse in California. Information is included under the headings phylloxera [V. vitifoli...

Omer, A.D.; Granett, J.; Downie, D.A.; Walker, M.A., 1997: Population dynamics of grape phylloxera in California vineyards. The population dynamics of Daktulosphaira vitifoliae [Viteus vitifoliae] were investigated in commercial grapevines in California. V. vitifoliae populations started from very low densities each spring, they increased exponentially and peaked durin...

D.B.nedictis, J.A.; Granett, J.; Taormino, S.P., 1996: Differences in host utilization by California strains of grape phylloxera. Grape phylloxera, Daktulosphaira vitifoliae (Fitch), were collected from phylloxera-resistant rootstocks as part of a survey of the diversity of the insect in California. In laboratory bioassays on root pieces, four strains (lineages descending fr...

Lider, Lloyd A., 1958: Phylloxera-resistant grape rootstocks for the coastal valleys of California. Grape phylloxera (Phylloxera vitifoliae (Fitch)), a root destroy- ing insect prevalent in most of the commercial vineyards of the world, was introduced into California prior to 1860. The only control is use of resistant rootstocks; investigation o...