CA Lessons: Landscaping To Reduce Wildfire Risk
While there are no ways to fireproof a property, there are strategies to design and maintain landscapes for reduced vulnerability. Click here to learn more.
Don't know. But...there may be a time of year when juniper is dormant or at a stage of growth that is tough and hardened off. You have a safer situation for the juniper then. Today--you are on your own.
If it's is grass only--then fusilade is the product of choice. Ortho "Grass B Gone " and Etc.
You can use Casaron over woodie ornamentals, granular form so it goes down easy. Do have to watch out for leaching if there is grass around the beds. Treat edges with heavy doses of Barricade or Dimension for emerging grass/weeds. Works really well.
RigglePC makes a good point -- it's much safer to spray junipers for weeds after the new growth has hardened off . We use Fusalade on grasses. For broadleaves we use a 3-way amine broadleaf herbicide (you're taking a risk if you use an ester). You can combine the Fusalade & 3-way in one solution. I don't know if I would use a spreader/sticker cuz it might be harmful to the junipers. Of course use a fine mist. Repeat spray may be needed on the grasses. Keep away from turf. I realize I have repeated many of the above members. Good luck.