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Mark from Lihue, Hawaii writes,

Can BioPhos Pro be injected into avocados trees to kill root rot? How much per application?



Per the Product Label for how to apply to Avocados for Root Rot(Phytopthora): Make four preventative foliar applications with spray volumes of 125-300 gal/acre; twice (at 10 to 14 day intervals) in each of two root growth seasons (usually May and July). Avoid applying during period of foliar growth.

We are unsure if it is safe to apply it directly to the root zone as mentioned on other edibles it has been tested for on the label. You will want to contact the manufacturer directly at (770) 831-4160.

Answer last updated on: 02/05/2015

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