LEVEL OF PHYLLOXERA RESISTANCE OF TWO NEW ROOTSTOCKS HYBRIDS: GEORGIKON 28 AND GEORGIKON 121
Grape phylloxera, Dactulosphaira vitifoliae (Fitch) (Homoptera:hylloxeridae) was imported from America with grapevine roots between 1854 and 1860.The insect spread rapidly across the whole Europe and had destroyed two-thirds of the vineyards of the continent.
We use over more than 130 years around the world the very same the phylloxera resistant Vitis species and varieties in the vine production. In 80- 100 years of preparing grafts phylloxera has a chance to adapt oneself to the circumstances so the insect can be present again as an expressive vine damage.
We have lack of knowledge about how the damage intensity caused by phylloxera correlates with population size. Therefore to understand the population biology of grape phylloxera is important for understanding vine damage and protection. Populations are governed by the host response of Vitis cultivars as well as by the environmental situation in which the plant is growing. In this section we review information on the phylloxeras intrinsic capacity to survive, develop and reproduce; discuss how the plant, environment, and insect strain influence these parameters. Afterwards discuss the evolution, development, reproduction of phylloxera from two hungarian vineyard on the (White Riesling) root and (Berlandieri x Riparia Teleki-Kober 5C, Berlandieri x Vinifera Georgikon 28, Berlandieri x Rupestris Georgikon 121) rootstock in vitro observations.
We can conclude from the results, that Georgikon 28 and Georgikon 121 rootstocks have excellent phylloxera resistance, better than Berlandieri x Riparia Teleki-Kober 5C. In 1999 and 2000 years we have used V. vinifera cvs. White Riesling for susceptible control, on what the development and reproduction of phylloxera was intense. The strain originated from Tokaj had higher reproduction and was more aggressive than the others.
The conclusion is: we can protect our vine from grape phylloxera damage, if attention has paid continuously on survivorship, development, and reproduction of the insect and new Vitis sources are involved in breeding phylloxera resistant rootstocks.
We use over more than 130 years around the world the very same the phylloxera resistant Vitis species and varieties in the vine production. In 80- 100 years of preparing grafts phylloxera has a chance to adapt oneself to the circumstances so the insect can be present again as an expressive vine damage.
We have lack of knowledge about how the damage intensity caused by phylloxera correlates with population size. Therefore to understand the population biology of grape phylloxera is important for understanding vine damage and protection. Populations are governed by the host response of Vitis cultivars as well as by the environmental situation in which the plant is growing. In this section we review information on the phylloxeras intrinsic capacity to survive, develop and reproduce; discuss how the plant, environment, and insect strain influence these parameters. Afterwards discuss the evolution, development, reproduction of phylloxera from two hungarian vineyard on the (White Riesling) root and (Berlandieri x Riparia Teleki-Kober 5C, Berlandieri x Vinifera Georgikon 28, Berlandieri x Rupestris Georgikon 121) rootstock in vitro observations.
We can conclude from the results, that Georgikon 28 and Georgikon 121 rootstocks have excellent phylloxera resistance, better than Berlandieri x Riparia Teleki-Kober 5C. In 1999 and 2000 years we have used V. vinifera cvs. White Riesling for susceptible control, on what the development and reproduction of phylloxera was intense. The strain originated from Tokaj had higher reproduction and was more aggressive than the others.
The conclusion is: we can protect our vine from grape phylloxera damage, if attention has paid continuously on survivorship, development, and reproduction of the insect and new Vitis sources are involved in breeding phylloxera resistant rootstocks.
Tóth, H. and Kocsis, L. (2003). LEVEL OF PHYLLOXERA RESISTANCE OF TWO NEW ROOTSTOCKS HYBRIDS: GEORGIKON 28 AND GEORGIKON 121. Acta Hortic. 603, 739-743
DOI: 10.17660/ActaHortic.2003.603.104
https://doi.org/10.17660/ActaHortic.2003.603.104
DOI: 10.17660/ActaHortic.2003.603.104
https://doi.org/10.17660/ActaHortic.2003.603.104
English