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首页> 外文期刊>Ciência e Agrotecnologia >Lambda-cyhalothrin efficiency on fruit borer control and quali-quantitative spraying aspects in a pinecone crop
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Lambda-cyhalothrin efficiency on fruit borer control and quali-quantitative spraying aspects in a pinecone crop

机译：Lambda-氯氟氰菊酯在松果作物中控制虫蛀和定性喷雾方面的效率

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In Brazil, the state of Bahia is one of the largest pinecone ( Annona squamosa L.) growers; nevertheless, fruit borer ( Cerconota anonella L.) presence limits production. This research aimed to test the efficiency of lambda-cyhalothrin in controlling fruit borer using different spray volumes; additionally, this research tested qualitative and quantitative operational aspects. Trials were carried out in pinecone orchards in Cara?-bas-BA, Brazil. Pesticide efficiency was tested by a randomized block experiment with six treatments and five replications. Treatments consisted of lambda-cyhalothrin application (1.5 g a.i. 100 L -1 water) with a surfactant (0.03% v v -1) at spray volumes of 100, 200, 268, 382 and 488 L ha -1 and one control (without spray). Pest infestation was assessed by counting symptomatic fruits for further percentage calculation. Five treatments with five replications were developed to evaluate spraying performance. These treatments consisted of an aqueous solution with a Brilliant Blue tracer at 0.15% (p v -1) and a surfactant at 0.03% (v v -1) , using the same spray volumes as the first experiment. Qualitative assessments were performed on water-sensitive paper cards and were quantified through tracer deposit levels on leaves. Spray volumes between 100 and 382 L ha -1 with lambda-cyhalothrin were efficient to control Cerconota anonella in the pinecone crop, providing good quality application.
机译：在巴西，巴伊亚州是最大的松果（Annona squamosa L.）种植者之一;但是，水果蛀虫（Cerconota anonella L.）的存在限制了产量。这项研究的目的是测试不同浓度的喷雾剂中氟氯氰菊酯在防治水果蛀虫中的功效。此外，本研究测试了定性和定量操作方面。在巴西卡拉卡拉巴斯松松果园中进行了试验。通过随机分组实验对杀虫剂的效率进行了测试，共进行了六次处理和五次重复。处理包括以λ-氟氯氰菊酯（1.5 g ai 100 L -1水）和表面活性剂（0.03％vv -1）分别以100、200、268、382、488和488 L ha -1的喷雾量和一种对照（不喷雾）进行处理）。通过对有症状的水果进行计数来评估病虫害，以进一步计算百分比。开发了具有五次重复的五种处理方法以评估喷涂性能。这些处理由水溶液组成，该溶液使用0.15％（v v -1）的亮蓝色示踪剂和0.03％（v v -1）的表面活性剂，使用与第一个实验相同的喷雾量。在对水敏感的纸卡上进行定性评估，并通过示踪剂在叶片上的沉积水平进行定量。 λ-氟氰菊酯的喷雾量在100至382 L ha -1之间，可有效控制松果作物中的Cerconota anonella，从而提供良好的品质。

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