“…remittance and fluorescence , trap size and shape (Cho et al, 1995;Coli et al, 1992;Moreno et al, 1984;Lewis, 1959), placement height of traps , sunlight degradation of colors (Childers and Brecht, 1996;Samways, 1986;Grout and Richards, 1990), cardinal direction (Beavers et al, 1971), and geographic latitude (Grout and Richards, 1990). Methods for estimating thrips densities on sticky cards have been developed that may involve either counting a section of a trap (Heinz et al, 1992), or by determining the presence-absence of thrips in grids laid over sticky traps (Steiner et al, 1999).…”