Spray deposition Leaf Area

It is therefore reasonable to assume that the evaporation rate of residue is proportional to the gross area of spray deposit for a pesticide remaining exposed on a leaf surface. The pesticide will be lost at a constant rate, under constant conditions of ventilation, until the contaminated area decreases significantly. 

Figure 3.4 Spray deposition on leaf canopy and on soil surface related to Leaf Area Index when spraying a winter wheat crop...

Figure 3.9 Spray deposition on crop canopy and underneath on soil surface, related to Leaf Area Index when spraying potatoes (after Zande et al., 1998)...

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