Abstracts

POWELL, C.C. 1 984. Let us spray — but how? Arbor Age 4(3): 1 2–17.

Most arborists would agree that spraying is a necessary and vital part of tree care. The fact remains, however, that most spraying operations are extremely inefficient. An understanding of the ways pesticides are applied is required to ensure their success. Pesticides work to control insect or disease problems because of proper attention to four basic “rights.” These four rights are: the right diagnosis of the problem; the right selection of material to combat the problem; the right method of application; and the right timing of the application. Because proper application is the key to the success of any pesticide, we will focus our attention on the important principles involved in the spraying process.

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