Kaolin Particle Film Protects Grapevine cv. Cabernet Sauvignon Against Downy Mildew by Forming Particle Film at the Leaf Surface, Directly Acting on Sporangia and Inducing the Defense of the Plant

高岭土颗粒膜可在叶片表面形成颗粒膜，直接作用于孢子囊并诱导植物防御，保护葡萄品种赤霞珠免受霜霉病侵害