…use of 15 minute intervals for sprays releasing 7.5 mg of pheromone for 12 hours each day (3 pm to 3 am) was found to work the best. Laboratory studies…
…the MeBr residue levels were less than 0.001 ppm when apples were waxed 5 days after fumigation. With shellac wax, the residue levels were 0.003 ppm 7 days after fumigation….