Depending on the level of infestation, 30 or 50 cards/ha are spread according to the schemes shown below.
Spreading instructions of TRICHOSAFE® cards for weak infestation (30 trailers/ha)
You receive a bundle of 30 cards per hectare. In the field, open the paper banderole, walk 10 m from the edge of the field and 8.3 m in a row and start distributing. Every 16.7 m you hang a card in a leaf axis of a corn plant. At the end of the row, continue in a row 20 m away following the same pattern.