Botryosphaeria dieback (BD) is a serious grapevine trunk disease (GTD) that causes large losses in yield and shortens the productive life of vineyards. Neofusicoccum parvum is one of the main causal agents of BD. Currently there are no curative fungicides to eradicate this disease; therefore, the use of tolerant cultivars to BD could be considered an interesting and sustainable alternative for its control. For this purpose, rooted cuttings of six red Vitis vinifera cultivars were selected and inoculated with N. parvum, under field conditions, over 2 consecutive years. Eight months after inoculation, plants were collected and inspected for lesion development. The fungal incidence varied depending on the cultivar and ranged from 42.1% in “Monastrell” cultivar to 93.3% in “Tinto Velasco” cultivar, evidencing a lack of qualitative resistance to N. parvum. The severity of internal wood symptoms caused by N. parvum differed considerably amongst the cultivars, being “Bobal” and “Monastrell” more tolerant than “Tinto Velasco” cultivar.

灰霉病（BD）是一种严重的葡萄干病（GTD），会导致产量大幅下降并缩短葡萄园的生产寿命。小镰刀菌是BD的主要病因之一。目前尚无可根除此病的治愈性杀菌剂。因此，对BD使用耐性品种可以被认为是控制其的有趣且可持续的选择。为此，选择了六个红色葡萄品种的生根插条并接种了小叶猪笼草。，在野外条件下，连续两年以上。接种后八个月，收集植物并检查病灶发展。真菌发生率取决于品种变化，并且从42.1％范围在“Monastrell”栽培至93.3％在“拓Velasco的”栽培种，证明缺乏定性电阻的N.孢子虫。所造成的内部木材症状的严重程度N.孢子虫有很大不同的品种当中，被“Bobal”和“Monastrell”比“拓韦拉斯科”品种更宽容。