Data/hora: 10/06/2024 15:15:27

Provedor de dados: | 64
País: | Brazil
Título: | Lambda-cyhalothrin efficiency on fruit borer control and quali-quantitative spraying aspects in a pinecone crop
Autores: | Morais,Jacqueline Lavinscky Costa; Castellani,Maria Aparecida; Raetano,Carlos Gilberto; Macêdo,Juliana Alves de; Nery,Moisés Silva; Moreira,Gabriela Luz Pereira.
Data: | 2016-06-01
Ano: | 2016
Palavras-chave: | Annona squamosa; Cerconota anonella; Tracer; Spray application technology.
Resumo: | ABSTRACT 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 Caraíbas-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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000300288
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/1413-70542016403044415
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.40 n.3 2016
Fonte: | info:eu-repo/semantics/openAccess