Thorough coverage of tobacco plants is critical for effective blue mold control. Application parameters will vary depending on growth stage. The information presented in this section is based on research conducted by Agriculture and Agri-food Canada on the application of Aliette WDG at different stages of tobacco growth.
Tobacco growth stages can be identified by plant height. The taller the plant, the more product needed to cover the foliage. The table below outlines how finished spray volume of Aliette can be varied to optimize coverage as tobacco plants grow. Note that it is important to stay within the total rates specified for tobacco on the product label (2.5-3.25 kg product/ha).
Table 1 - Application of Aliette WDG on tobacco.
Be sure to stay within the total rates on the label. This table indicates spray mix rates onlyA.
| Growth Stage | Plant Height | Banded Spray Mix Rate |
| Early plant growth | up to 25 cm | 100 L/ha |
| Early–mid plant growth | 25–36 cm | 170 L/ha |
| Mid-late plant growth | 36–70 cm | 320 L/ha |
| Late plant growth | 70 cm to topping stage | 500-560 L/ha |
| AThe labelled broadcast application rate for Aliette WDG is 2.5–3.25 kg of product/ha in 450–560 L water/ha — a ratio of 1 kg of product for every 175 L of water (1 kg:175 L). A single application should never exceed 3.25 kg of product in 560 L water/ha. Never exceed 3–4 applications per year and never exceed 10 kg product/ha/yr. | ||
Hollow cone nozzles configured as in the figures below will provide sufficient coverage at the volumes shown in Table 1. Thorough coverage of tobacco plants can be obtained with these sprayer configurations when using a hydraulic-type sprayer such as a Hi-Boy.