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🦗 蚱蜢

一種以植物為食的昆蟲，會對農作物造成損害。

蚱蜢

蚱蜢是咀嚼式昆蟲，後腿粗壯，適合跳躍。大多數種類無害，但少數種類能在幾天內將田地裡的作物吃光。最可怕的是蝗蟲，它們在擁擠的情況下會改變習性，形成遮天蔽日的蝗蟲。

蝗災爆發與天氣密切相關。溫暖乾燥的春季有利於蝗蟲生存，而乾旱則使植被集中分佈，為蝗蟲幼蟲的聚集創造了有利條件。沙漠蝗蟲在北非和中東地區繁殖，由於一群沙漠蝗蟲一天就能吃掉相當於小城市所需的糧食，因此聯合國糧農組織對其進行監測。

控制選項

蚱蜢也是野生動物的食物來源，有助於草原養分循環。我們的目標很少是徹底根除蚱蜢，而是將其數量控制在不會影響農作物生長的水平以下。

Comments (3)

  1. Jorge Mendez
    Grasshoppers destroyed my grandfather's crops one summer. He never forgot it and neither did I, even though I was only six.
  2. Helen T.
    There's a difference between grasshoppers and locusts. Locusts are the swarming phase of certain grasshopper species.
  3. Dana Kirk
    As a kid I used to catch grasshoppers in the field behind our house. Never thought of them as agricultural pests back then.

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