J from Assigned, California writes,
Will Bifen hurt pine and redwood are and do mosquitoes hang out in these evergreens.
Bifen IT will not harm trees or shrubs when applies as directed. You want to mix 1oz Bifen with 1 gal water. Really be sure to focus on shaded areas that can retain moisture, like undersides of leaves, leaf piles, etc.
Answer last updated on: 07/23/2014