“…The oils of Oregano, Basil, de Marjoram, Thyme, Sage, Laurier, Rosemary, Lavender, Anise, Mint, Celery, Cumin, Citrus Fruit, Coriander and de Fennel have been tested and several have caused up to 100 % of mortality in the small borer of cereals, Rhysopertha dominica (F.), the saw-toothed grain beetle, Oryzaephilus surinamensis (L.), the red flour beetle, Tribolium castaneum (Hbst.) and the rice weevil (Shaaya et al, 1991). …”