A: Kiwifruit ulcer disease is mainly transmitted by wind and rain, irrigation water, insects (bees, butterflies, etc.), artificial agricultural operations, tools (cuts, saws, knives, etc.), and long-distance propagation mainly through seedlings, rootstocks, and branches (sprouts). ). The tree infestation was mainly from wounds such as insect injury, frostbite, sawn cut, and stomata, of which wound invasion was dominant.
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