Current climate changes are leading to an increase in the intensity and frequency of extreme events with a strong impact on agriculture. Late frosts are one of the main calamities for fruit trees and are a major cause of loss and reduction of productivity worldwide. With regard to the wine sector, the late frosts lead to the destruction of thousands of hectares of vineyards, with economic losses occurring all over the world. Given the importance of the wine sector in the world, more and more efforts are being made to identify methods, alternative to those already known (active or passive defensive methods), capable of creating a low-cost protection and effective for vines, as well as reducing energy consumption. The present study aims to propose an innovative technique to solve the problems related to late frost on vineyards and limit its damages as much as possible. The result of researches has been the identification of an insulating material able to cover the vine shoots during late frosts and thus prevent their freezing: the cotton candy has proved to be an excellent thermal insulator, extremely light, easy to produce, cheap and completely biodegradable in a few hours. An experimental apparatus consists of a climatic chamber and an electrical wire simulating a vine branch and the cotton candy. Several tests were conducted with different amounts of cotton candy in order to identify an optimum balance between the costs of producing the insulating material and the reduction of energy consumption.

中文翻译：

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一种天然有机涂层，可控制并最大程度地减少酒芽上的后期霜冻损害。

当前的气候变化导致极端事件的强度和频率增加，对农业产生了重大影响。晚霜是果树的主要祸害之一，并且是全球范围内损失和生产力下降的主要原因。在葡萄酒行业，晚霜冻导致数千公顷葡萄园的破坏，世界各地都在遭受经济损失。考虑到葡萄酒行业在世界上的重要性，人们正在做出越来越多的努力来寻找方法，以替代已知方法（主动或被动防御方法），这些方法能够提供低成本的保护并对葡萄藤有效。作为减少能源消耗。本研究旨在提出一种创新技术，以解决与葡萄园后期霜冻有关的问题，并尽可能减少其危害。研究的结果是鉴定出一种能够在霜冻较晚时覆盖葡萄枝并因此防止其结冰的绝缘材料：棉花糖被证明是极好的绝热材料，重量极轻，易于生产，便宜且可完全生物降解。几个小时后。一种实验装置，包括：气候室，模拟葡萄枝的电线和棉花糖。为了确定绝缘材料的生产成本与降低能耗之间的最佳平衡，对不同数量的棉花糖进行了几次测试。研究的结果是鉴定出一种能够在霜冻较晚时覆盖葡萄枝并因此防止其结冰的绝缘材料：棉花糖被证明是极好的绝热材料，重量极轻，易于生产，便宜且可完全生物降解。几个小时后。一种实验装置，包括：气候室，模拟葡萄枝的电线和棉花糖。为了确定绝缘材料的生产成本与降低能耗之间的最佳平衡，对不同数量的棉花糖进行了几次测试。研究的结果是鉴定出一种能够在霜冻较晚时覆盖葡萄枝并因此防止其结冰的绝缘材料：棉花糖被证明是极好的绝热材料，重量极轻，易于生产，便宜且可完全生物降解。几个小时后。一种实验装置，包括：气候室，模拟葡萄枝的电线和棉花糖。为了确定绝缘材料的生产成本与降低能耗之间的最佳平衡，对不同数量的棉花糖进行了几次测试。易于生产，便宜且可在数小时内完全生物降解。一种实验装置，包括：气候室，模拟葡萄枝的电线和棉花糖。为了确定绝缘材料的生产成本与降低能耗之间的最佳平衡，对不同数量的棉花糖进行了几次测试。易于生产，便宜且可在数小时内完全生物降解。一种实验装置，包括：气候室，模拟葡萄枝的电线和棉花糖。为了确定绝缘材料的生产成本与降低能耗之间的最佳平衡，对不同数量的棉花糖进行了几次测试。