Produção Nacional
Revisado por pares
Effectiveness of coffee leaf miner control associated with spray deposition in coffee leaves
2020; UNIVERSIDADE FEDERAL DE VIÇOSA; Volume: 67; Issue: 5 Linguagem: Inglês
10.1590/0034-737x202067050007
ISSN2177-3491
AutoresRenan Zampiróli, Cleyton Batista de Alvarenga, Paula Cristina Natalino Rinaldi, Vanessa Andaló, Jair Rocha do Prado, Pablo Arthur Silva Gonçalves,
Tópico(s)Plant Surface Properties and Treatments
ResumoCoffee production faces challenges due to the susceptibility of the crop to insects. Owing to the coffee leaf miner Leucoptera coffeella, which is one of the main insect pests, the technology for the application of phytosanitary measures becomes the main challenge for coffee growers. This study aimed to evaluate the effectiveness of coffee leaf miner control using different methods of application. The study was conducted in an experimental site in the municipality of Monte Carmelo - Minas Gerais. Spray depositions in different positions of the plant canopy and the effective control of coffee leaf miner were evaluated using the following application treatments: a hydropneumatic sprayer with varying spray volumes (200 and 400 L ha-1), two hollow-cone spray nozzles with the presence and absence of agricultural adjuvant, and electrostatic application using a spray volume of 200 L ha-1 with and without spray adjuvant. The addition of an adjuvant to the spray did not influence coffee leaf miner control; in contrast, a spray volume of 200 L ha-1 combined with the application of coarse droplets was efficient in the management of insect pest. The reduction in the rate of the application using coarse droplets increased the operational capacity and reduced spray drift potential.
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