1. The locusta population has significantly increased due to favorable weather conditions.
（由于有利的天气条件，蝗虫种群数量显著增加。）
2. Locusta migratoria is a common agricultural pest that can cause widespread crop damage.
（蝗虫（学名：Locusta migratoria）是一种常见的农业害虫，能够造成广泛的农作物损害。）