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Forms of Sprays. The types of spray classified according to theform in which they are used are two. The most generally used formis the liquid, which generally means a chemical in suspension in water.Most sprays used in liquid form are chosen because of their ability tostay in suspension in water for a considerable length of time withouteither going into solution or gathering in lumps. This property ofstaying in suspension is a very valuable one, because it insures an evendistribution of the spray material without an excessive amount ofagitation to keep the mixture even. There is an increasing tendencyto use the dust form of spray in which the chemicals are blown upon |
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