Comparison of the sensitivity to pests and diseases of new cultivars. First results of an evaluation network led in France since 2012. J. Ruesch, C. Hilaire (Ctifl) - Y. Montrognon (Sefra) - N. Courthieu (Centrex) - P. Blanc (Serfel)

The societal expectations in term of reduction of the use of inputs in agriculture, the interdiction of some commercial specialties (technical impasses) and the development of more and more restrictive specifications from wholesalers make the management of pests and diseases particularly complex. A possible solution is to identify more resilient cultivars.
The breeding programs in France are very intense. The assessments are usually based on the observation of the tree management, the agronomic performance, the presentation of the fruit and its organoleptic quality.
In the frame of the 'cultivars and rootstocks assessment national chart', specific orchards have been planted to evaluate the sensitivity of 30 cultivars to various pests and diseases. These additional orchards permit to get complementary information on the varieties. The experimental orchards were planted during the winter 2011-12 on 4 sites.
The objective of the trial is to classify the new cultivar considering their sensitivity to powdery mildew (S. pannosa), to peach leaf curl (T. deformans), oriental peach moth (C. molesta / A. lineatella) and thrips (F. occidentalis / T. meridionali)
The first observations permitted to classify the varieties in function of their level of sensitivity. The study showed that there is no variety totally tolerant to all pest/diseases. Moreover, the study highlighted the importance of environmental factors on the apparition and intensity of the symptoms.

Documents

Comparison of the sensitivity to pests and diseases of new cultivars. First results of an evaluation network led in France since 2012 () Poster

Details

Activity type

Final project conference participation with presentation (poster)

Activity work package

Performance of new fruit varieties

Activity number

CTIFL-WP2-17

Activity contact

Julien Ruesch, CTIFL, 751, Chemin de Balandran 30127 BELLEGARDE France
Tel. + 0033 (0)4 66 01 10 54

Activity partner

CTIFL

Activity country

France

Last edit

27-09-2017