Insecticide application rate in coffee crop: qualitative and quantitative aspects and efficacy of leaf miner control
| Autor: | Carlos Gilberto Raetano, Aldenise Alves Moreira, Thiago Lima Melo, Suzany Aguiar Leite, Adriana Dias Cardoso, Maria Aparecida Castellani |
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| Přispěvatelé: | Universidade Estadual do Sudoeste da Bahia/UESB, Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2020 |
| Předmět: |
Brilliant blue marker
0106 biological sciences Crop pest Soil Science Leaf miner Parasitism Cartape hydrochloride Plant Science 01 natural sciences Rational use Crop Toxicology chemistry.chemical_compound Beta-cypermethrin Cyantraniliprole Leucoptera coffeella biology 04 agricultural and veterinary sciences biology.organism_classification chemistry 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Pest infestation 010606 plant biology & botany Food Science |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1984-3909 |
| DOI: | 10.25186/.v15i.1722 |
| Popis: | Made available in DSpace on 2020-12-12T02:48:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 Fundação de Amparo à Pesquisa do Estado da Bahia Leaf miner is a key coffee crop pest in Central and South America countries, especially in Brazil, where the insect causes considerable production losses. In the management of this insect pest, insecticide applications at reduced rates are fundamental for improve the operational capacity of the sprayer and the rational use of water. Thus, the aim of this study was to select a application rate that ensures effectiveness of cyantraniliprole, cartape hydrochloride and beta-cypermethrin insecticides in the leaf miner control, good spraying quality with varying application rates and low impact on natural parasitism. The qualitative and quantitative aspects of spraying with the Brilliant Blue marker were evaluated at the following rates: 28.1, 60.5, 80.2 and 180.0 L ha-1 and the efficacy of cyantraniliprole, cartape hydrochloride and beta-cypermethrin insecticides, with doses of the commercial formulations. Pest infestation and parasitism were determined before and after applications. Application rate interferes with qualitative aspects and spray deposition levels. Considering the quality-quantitative aspects and Agronomic Efficacy, rates between 80.2 and 180.0 L ha-1 are the most suitable for the control of this insect. Cyantra-niliprole insecticide is effective in controlling L. coffeella up to 45 DAA at rate of 180.0 L ha-1. The impact of cyantraniliprole, cartape hydrochloride and beta-cypermethrin insecticides on L. coffeella natural parasitism varies with application rates and time after application. Universidade Estadual do Sudoeste da Bahia/UESB Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP Departamento de Proteção Vegetal Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP Departamento de Proteção Vegetal |
| Databáze: | OpenAIRE |
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