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通过固体杀虫剂应用和增加杀虫剂剂量来改善Sphenophorus levis成人死亡率
Pedro Henrique Urach Ferreira1, Marcelo da Costa Ferreira2, Eliane Vieira3
1Phytosanitary Dept, UNESP, Jaboticabal, SP, Brazil. pedro.esalq@gmail.com.
Neotropical entomology
|October 1, 2024
概括
固体杀虫剂的应用通过保持更高的土壤度,有效地控制了甘虫 (Sphenophorus levis). 在模拟现场条件下,Lambda-cyhalothrin + thiamethoxam的剂量增加显著改善了成年虫的死亡率.
科学领域:
- 农业昆虫学 农业昆虫学
- 虫害管理 虫害管理 虫害管理
- 杀虫剂的有效性 杀虫剂的有效性
背景情况:
- 甘虫 (Sphenophorus levis) 是巴西的主要害虫,导致大量的收获损失.
- 由于害虫的地下行为,目前的杀虫剂应用方法是无效的.
- 优化杀虫剂的输送对于有效的甘虫控制至关重要.
研究的目的:
- 评估新的生物测试方法,以评估杀虫剂对成年甘虫的有效性.
- 为了比较液体和固体杀虫剂应用对Sphenophorus levis控制的有效性.
- 为了确定增加的杀虫剂剂量对Sphenophorus levis死亡率的影响.
主要方法:
- 利用创新的生物测试来模拟昆虫杀虫剂应用的现场条件.
- 在不同处理过程中评估了成年Sphenophorus levis的死亡率和土壤杀虫剂残留物.
- 与lambda-cyhalothrin + thiamethoxam和imidacloprid的液体和固体应用进行比较.
- 研究了不同剂量的兰巴-甲 + 提亚对害虫控制的影响.
主要成果:
- 兰巴-西哈洛 + 提亚的固体应用显示出比伊米达克洛普里德更高的疗效.
- 固体杀虫剂的应用比液体应用更长时间保持了土壤度的升高.
- 较高剂量的固体应用的lambda-cyhalothrin + thiamethoxam显著增加了Sphenophorus levis的死亡率 (76.7%),而不是标签率 (58.8%).
结论:
- 固体杀虫剂的应用是控制甘虫的一种有希望的策略.
- 优化应用方法和剂量可以提高害虫管理的有效性.
- 为了可持续的甘生产,对土壤应用的杀虫剂进行进一步的研究是有必要的.
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