spray deposit meaning in Hindi

Examples

1. While this white material resembles a powdery mildew disease or a chemical spray deposit, it is actually a natural exudate from  chalk glands that are found on the plumbago species.
2. Kaolin-based sprays have been studied extensively since 1999 and research has established that these sprays deposit a " particle film " that has numerous beneficial effects on plants and in insect pest control.