@article{fdi:010018425,
  title = {{E}ffects of wind, relative humidity, leaf movement and colony age on dispersal of conidia of {U}ncinula necator, causal agent of grape powdery mildew},
  author = {{W}illocquet, {L}aetitia and {B}erud, {F}. and {R}aoux, {L}. and {C}lerjeau, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} wind tunnel was designed to study the effect of wind, relative humidity, leaf movement and colony age on dispersal of conidia of #{U}ncinula necator$. {W}ind speed as low as 2.3 m/s instantaneously triggered dispersal of conidia from fixed leaf discs of 18-day-old infections. {C}onidia were observed on sporulating leaf discs even after exposure to 17 m/s wind. {T}he fraction of conidia dispersed at a given wind speed increased with colony age from 12 to 24 days. {C}onidia of 27-day-old colonies were less easily dispersed. {N}o gradient of maturation of conidia along the conidial chain was observed, suggesting that even newly formed conidia were able to germinate after dispersal. {G}ermination of dispersed conidia decreased slightly with greater colony age. {B}oth wind and simulted raindrops caused dispersal of conidia from infected leaves. {L}eaf movement at wind speed of 3.5-4 m/s increased dispersal, and the first impact of three simulated raindrops caused release of 53% of the total conidia dispersed. {R}elative humidity had no effect on dispersal of conidia at different wind speeds. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{VIGNE} ; {MALADIE} {DES} {PLANTES} ; {PATHOLOGIE} {VEGETALE} ; {MILDIOU} ; {EPIDEMIOLOGIE} ; {SPORE} ; {DISPERSION} ; {FACTEUR} {CLIMATIQUE} ; {VENT} ; {VITESSE} ; {HUMIDITE} {RELATIVE} ; {PLUIE} ; {GERMINATION} ; {ETUDE} {EXPERIMENTALE}},
  booktitle = {},
  journal = {{P}lant {P}athology},
  numero = {47},
  pages = {234--242},
  ISSN = {0032-0862},
  year = {1998},
  DOI = {10.1046/j.1365-3059.1998.00242.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010018425},
}