powdered forms of chemicals, usually with the particles noticeably larger than in wettable powders They are applied with a shaker, duster, etc and adhere to the foliage to which they are applied
A metaphor for all the mundane things that can cloud our bright Self-Nature These include form, sound, scent, taste, touch, dharmas (external opinions and views) These dusts correspond to the five senses and the discriminating, everyday mind (the sixth sense, in Buddhism)