Tabanids and stable flies are important nuisances to livestock and sometimes humans. Nzi, Vavoua, and Biconical traps or insecticide-impregnated blue screens are commonly used to attract and catch these flies. Such devices are made of a specific cotton or cotton-polyester phthalogen blue fabric acting as a visual attractant. However, the cost of cotton fabrics is high, and they are no longer available due to toxic dyes. The present study compared four blue polyester fabrics produced in Thailand with a reference blue cotton-polyester fabric made in France by TDV® to attract hematophagous flies. Vavoua traps and blue screens covered with a sticky film made with the five different blue fabrics were compared. The TDV® had the highest trapping scores; however, there was no significant difference between TDV® and some polyester fabrics. Among the tested polyester fabrics, CR Solon No.41 was nearly as effective as the TDV® in attracting biting flies. The mean attractivity indices of CR Solon No.41, NS No.1469, Globe 2000 No.21, Globe 2000 No.34 were 0.86, 0.79, 0.69, and 0.39, respectively. Thus, we recommend that CR Solon No.41 would be the appropriate fabric for the further development of low-cost and optimized screens and traps in Thailand and other countries.

中文翻译：

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泰国养牛场蓝色棉和蓝色涤纶织物吸引食血苍蝇的比较

Tabanids 和稳定的苍蝇对牲畜，有时对人类来说是重要的滋扰。Nzi、Vavoua 和双锥陷阱或浸有杀虫剂的蓝屏通常用于吸引和捕捉这些苍蝇。这种装置由一种特殊的棉或棉-聚酯酞菁蓝织物制成，用作视觉引诱剂。然而，棉织物的成本很高，并且由于有毒染料而不再可用。本研究将泰国生产的四种蓝色涤纶织物与 TDV® 在法国生产的参考蓝色棉涤纶织物进行比较，以吸引食血苍蝇。比较了用五种不同的蓝色织物制成的覆盖有粘性薄膜的 Vavoua 陷阱和蓝色屏幕。TDV® 具有最高的诱捕分数；然而，TDV® 和一些涤纶织物之间没有显着差异。在测试的涤纶织物中，CR Solon No.41 在吸引叮咬苍蝇方面几乎与 TDV® 一样有效。CR Solon No.41、NS No.1469、Globe 2000 No.21、Globe 2000 No.34的平均吸引力指数分别为0.86、0.79、0.69和0.39。因此，我们建议 CR Solon No.41 将是泰国和其他国家进一步开发低成本和优化筛网和陷阱的合适面料。