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How to prune a mulberry tree
Disinfect your clippers before trimming.
To make sure that your mulberry tree stays healthy and disease free, be sure to clean your clippers before using them. You can do this with a household disinfectant product, such as lysol or bleach.

Choose from:
[i] You do not need to disinfect your clippers before trimming them. Put the disinfectant into a spray bottle and spray it onto the tree, concentrating on the exposed trunk.;
[ii] Brush off excess soap or water from the clippers before using them. After you clean your clippers, write down the date on the clippers to keep them up to date.;
[iii] Put clean clippers back in their sockets and when you are ready to prune. It's worth a shot to clean your clippers at least twice every three to four weeks to ensure that the tree stays healthy and disease free.;
[iv] You can also rub isopropyl alcohol on the clippers to disinfect them. Cleaning your clippers is especially important if you have more than one mulberry tree.;
[iv]