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in the early morning
or late afternoon when the foliage was dry. The product can also be
sprayed in the early evening when the birds start to roost in the
tree. While we have seen no indication that Bird Shield is harmful
to birds, birds apparently dislike getting it on their feathers, and
will soon learn to avoid an area sprayed with it. Expect
to re-treat until the birds quit using the area. Once a week is
usually enough to train the birds to roost elsewhere in a short
period of time, though other birds may begin using the area later,
requiring further treatment.
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