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Jeff from Fl writes

How long will 4 The Birds - Bird Repellent Liquid last outdoors?


The residual time of the 4 The Birds - Bird Repellent Liquid will vary depending on weather elements, debris particles and the limb surfaces on plants, trees, bushes, etc. For larger birds such as starlings, more than one application may be necessary to create a thick enough layer for the repellent to be most effective. It is recommended that treatments to trees, bushes and vines be made in the fall or early spring when limbs are bare and easily accessible. Repeat treatments can be done as needed or when repellency has dimenished. 

Answer last updated on: 05/19/2021

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