WebJul 1, 2014 · Phomopsis. Each rainfall event will lead to additional spore dispersal from old, overwintered canes and spurs and can lead to successful infection on the rachis and berries. The optimum temperature for infection is 59-68 F, at which time about six to 10 hours of wetness are needed for infection. The longer the tissue stays wet, the more severe ... WebPhomopsis stem canker is a relatively newly identified disease of sunflower, and was first documented in Europe and the United States in the 1980s (Herr et al., 1983; Muntanola-Cvetkovic et al., 1981 ). The disease was then confirmed in other European countries and became quite serious, especially in France and the former Yugoslavia, where 50 ...
Plantes potagères et herbacées (FranceArchives)
WebLes maladies du tournesol. La protection fongicide du tournesol repose principalement sur la génétique. Choisir une variété résistante ou peu sensible au sclérotinia ou au … WebRapport national - Grandes cultures - Rapport phomopsis du tournesol - 1987 Item Preview remove-circle Share or Embed This Item. Share to Twitter. Share to Facebook. Share to … iphone se 3 ทรู
Phomopsis sur tournesol : ne traiter que si nécessaire
WebSpots or lesions on shoots and leaves are common symptoms of the disease. Small, black spots on the internodes at the base of developing shoots are probably the most common disease symptom. These spots are usually found on the first three to four basal internodes. WebLes maladies du tournesol. La protection fongicide du tournesol repose principalement sur la génétique. Choisir une variété résistante ou peu sensible au sclérotinia ou au phomopsis est le meilleur moyen de se prémunir contre les attaques de ces maladies. Ce n’est pas vrai avec le phoma, contre lequel un traitement fongicide est ... WebLe modele Asphodel a ete mis au point entre 1992 et 1995 comme aide a la lutte contre Diaporthe helianthi (Phomopsis du tournesol) avec les fongicides. Son elaboration s'est … orange flavored chicken recipe