针对番茄叶矿工,Phthorimaea absoluta的地上使用的昆虫病原性线虫的配方
Bancy W Waweru1, Joelle N Kajuga1, Athanase Hategekimana1
1Rwanda Agriculture and Animal Resources Development Board, Huye P.O. Box 5016, Rwanda.
Insects
|February 26, 2025
概括
在油或基多糖化表面活性剂中配制的昆虫病原性线虫 (EPN) 显示出对控制侵入性番茄叶矿工Phthorimaea (Tuta) absoluta.的前景. 这些配方保护树叶表面上的线虫,为化学杀虫剂提供了潜在的替代品.
科学领域:
- 农业昆虫学 农业昆虫学
- 生物害虫控制 生物害虫控制
- 遗体学 遗体学 是一个学科.
背景情况:
- 番茄叶矿工Phthorimaea (*Tuta*) *absoluta*是一个破坏性的入侵性害虫,影响着全球的番茄产量.
- 幼虫居住在叶地雷和番茄果实中,因此很难用传统的植物保护产品准它们.
- 昆虫病原性线虫 (EPNs) 提供了生物控制替代品,因为它们的高毒性和积极寻找宿主幼虫的能力.
研究的目的:
- 评估各种配方在番茄叶面上保护虫病原性线虫 (EPN) 的有效性.
- 为了确定EPN的最佳喷涂配方,以控制*Phthorimaea* (*Tuta*) *absoluta*幼虫.
- 评估配方对EPN存活率和致病性的影响.
主要方法:
- 测试了11种不同的配方,包括油,凝,表面活性剂,紫外线保护剂和水,含有和没有EPN*Steinernema carpocapsae*.
- 实验在低湿度条件下进行,模拟非封闭环境.
- 通过进入叶矿的EPN的百分比来衡量有效性,并进行了生存/致病性测试.
主要成果:
- 含有0.25-0.5%的甘油或5%的基多基糖化表面活性剂的配方在控制番茄叶矿工幼虫方面表现出最高的疗效 (26-37%).
- 其他经过测试的配方,包括杀虫剂,显示效果明显较小或没有效果.
- 大多数测试的配方没有对EPN存活率或致病性产生负面影响.
结论:
- 可喷的EPN配方,特别是那些含有甘油或基多糖化物表面活性剂的配方,对*Phthorimaea* (*Tuta*) *absoluta*有效.
- 对流动凝等先进配方的进一步研究可以提高EPN的输送和有效性.
- 开发实用,具有成本效益的EPN配方对于减少番茄种植中对化学杀虫剂的依赖至关重要.
相关概念视频
Production of Biopesticides
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
Anthelminthic Agents
Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...


