'Laspeyresia nigricana'是英语中的词语，中文翻译为黑粉螟。它是一种蛾类昆虫，会危害柑橘、苹果、梨等果树，导致果实腐烂。
以下是9个含有'Laspeyresia nigricana'的例句：
1. The orchard was infested with Laspeyresia nigricana, resulting in a significant decrease in fruit production. （果园里遭到了黑粉螟的侵袭，导致果实产量显著下降。）
2. Laspeyresia nigricana eggs are laid on the surface of fruit, and the larvae burrow into the fruit to feed. （黑粉螟卵产在果实表面，幼虫则钻进果实内部取食。）
3. The use of pheromone traps has proven to be effective in controlling Laspeyresia nigricana populations. （使用信息素陷阱已被证明可以有效地控制黑粉螟种群。）
4. The Laspeyresia nigricana moth emerges from the pupal stage and begins laying eggs in the spring. （黑粉螟蛾从蛹期中出来后，在春季开始产卵。）
5. Infected apples showed signs of damage from Laspeyresia nigricana larvae. （受感染的苹果显示了来自黑粉螟幼虫的破坏迹象。）
6. Laspeyresia nigricana larvae have been found in citrus crops in southern California. （黑粉螟幼虫已在加利福尼亚南部的柑橘作物中发现。）
7. The Laspeyresia nigricana moth can be identified by its distinctive black and white markings. （黑粉螟蛾可以通过其独特的黑白斑纹来鉴定。）
8. Farmers in the region are taking measures to control the spread of Laspeyresia nigricana in their orchards. （该地区的农民正在采取措施控制黑粉螟在果园中的传播。）
9. Laspeyresia nigricana is a common pest of fruit trees in many parts of the world. （黑粉螟是世界许多地区果树常见的害虫。）
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