Leaf-cutting ants (genera Atta and Acromyrmex) are defoliation pests of great agronomic importance. Currently, the most effective control method is chemical using granulated baits containing sulfluramid as a standard active ingredient. In this work, a new protocol was proposed for the synthesis of the encapsulates with chitosan, tapioca, citrus pulp and sulfluramid. A sulfluramid is a pesticide which is used extensively in Brazil for management of leaf cutting ants. The main focus of this work is to use a polymeric combination aligned with the active ingredient that allows the formation of an encapsulated which the ants can transport and incorporate to their nests, being an effective methodology for the death of colonies. The encapsulated makes the active ingredient less available to the environment, but maintains the mortality level similar to the used granulated baits. For this reason, it was proposed to develop a chitosan and tapioca encapsulated for the control of leaf-cutting ants.The presence of sulfluramid in the encapsulated was confirmed by Fourier transform infrared spectrometer (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The behavioral acts related to the transport and the incorporation of leaf disks and encapsulates were observed utilizing A. sexdens colonies. The encapsulates containing sulfluramid have presented a similar intoxication of A. sexdens workers causing mortality in the same proportion as the commercial baits. The protocol for the synthesis of the encapsulates can be utilized with other substances, as entomopathogenic and parasite microorganisms.

Graphic Abstract

中文翻译：

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壳聚糖-塔皮卡酯在阿塔菌丝中的合成，吸引力和功效（膜翅目：For科）

切叶蚁（Atta和Acromyrmex属））是具有重要农艺意义的落叶害虫。当前，最有效的防治方法是使用含有磺胺嘧啶作为标准活性成分的颗粒饵剂进行化学处理。在这项工作中，提出了一种新的方案，用于与壳聚糖，木薯淀粉，柑橘果肉和磺胺嘧啶合成胶囊。磺胺嘧啶是一种农药，在巴西广泛用于管理切叶蚁。这项工作的主要重点是使用与活性成分对齐的聚合物组合物，该组合物可以形成一种可以使蚂蚁运输并结合到其巢中的胶囊，这是一种有效的殖民地死亡方法。包封后的活性成分对环境的可用性降低，但保持了与使用过的颗粒状诱饵相似的死亡率。为此原因，通过傅里叶变换红外光谱仪（FTIR），X射线衍射（XRD）和扫描电子显微镜（SEM）确认了包封中存在巯基乙酰胺的存在。 ）。使用观察到与叶盘和包囊的运输和结合有关的行为行为。A.雌性菌落。含有磺胺嘧啶的包囊对工农曲霉有类似的中毒作用，其致死率与商业诱饵相同。包囊的合成方案可以与其他物质一起使用，例如昆虫病原体和寄生虫微生物。

图形摘要