| Autor: |
Olinto Lasmar, Marcelo da Costa Ferreira, Sergio Tadeu Decaro Junior, Gunther Fouquet |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Bioscience Journal, Vol 32, Iss 5 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
1981-3163 |
| DOI: |
10.14393/BJ-v32n5a2016-32894 |
| Popis: |
The objective of the study was to evaluate the application efficiency with reduced volume from the prototype of a pneumatic spray nozzles aimed to control the coffee leaf miner (Leucoptera coffeella). We evaluated different types of pneumatic nozzles (flat fan, cone jet, AT-1000 model and effervescent), on application of insecticide spray liquids with concentrations of 5, 10, 15 and 20% (v/v) of mineral oil applied in reduced volume and 0.5% applied by conventional airblast sprayer. The application technology parameters studied in laboratory and field conditions were as follows: droplet size (µm), tracer deposit (µg/cm²) and leaf spray coverage (%). The reduced volume application, provided by the prototype of a pneumatic spray nozzles with the effervescent type compared to traditional airblast sprayer, presents proper conditions of use, especially in relation to deposit and coverage of spraying liquid over coffee leaves. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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