diff --git a/hgext/infinitepush/__init__.py b/hgext/infinitepush/__init__.py
--- a/hgext/infinitepush/__init__.py
+++ b/hgext/infinitepush/__init__.py
@@ -440,16 +440,6 @@
     cgpart.addparam('version', version)
     parts.append(cgpart)
 
-    try:
-        treemod = extensions.find('treemanifest')
-    except KeyError:
-        pass
-    else:
-        if treemod._cansendtrees(bundlerepo, outgoing.missing):
-            treepart = treemod.createtreepackpart(bundlerepo, outgoing,
-                                                  treemod.TREEGROUP_PARTTYPE2)
-            parts.append(treepart)
-
     return parts
 
 def _getbundleroots(oldrepo, bundlerepo, bundlerevs):
@@ -858,7 +848,6 @@
         return
 
     pushop.stepsdone.add('changesets')
-    pushop.stepsdone.add('treepack')
     if not pushop.outgoing.missing:
         pushop.ui.status(_('no changes found\n'))
         pushop.cgresult = 0
@@ -953,13 +942,6 @@
 
     handleallparts = repo.ui.configbool('infinitepush', 'storeallparts')
 
-    partforwardingwhitelist = []
-    try:
-        treemfmod = extensions.find('treemanifest')
-        partforwardingwhitelist.append(treemfmod.TREEGROUP_PARTTYPE2)
-    except KeyError:
-        pass
-
     bundler = bundle2.bundle20(repo.ui)
     cgparams = None
     with bundle2.partiterator(repo, op, unbundler) as parts:
@@ -987,7 +969,7 @@
                     op.records.add(scratchbranchparttype + '_skipphaseheads',
                                    True)
             else:
-                if handleallparts or part.type in partforwardingwhitelist:
+                if handleallparts:
                     # Ideally we would not process any parts, and instead just
                     # forward them to the bundle for storage, but since this
                     # differs from previous behavior, we need to put it behind a
diff --git a/hgext/infinitepush/bundleparts.py b/hgext/infinitepush/bundleparts.py
--- a/hgext/infinitepush/bundleparts.py
+++ b/hgext/infinitepush/bundleparts.py
@@ -68,19 +68,6 @@
         advisoryparams=params.iteritems(),
         data=cg))
 
-    try:
-        treemod = extensions.find('treemanifest')
-        mfnodes = []
-        for node in outgoing.missing:
-            mfnodes.append(('', repo[node].manifestnode()))
-
-        # Only include the tree parts if they all exist
-        if not repo.manifestlog.datastore.getmissing(mfnodes):
-            parts.append(treemod.createtreepackpart(
-                repo, outgoing, treemod.TREEGROUP_PARTTYPE2))
-    except KeyError:
-        pass
-
     return parts
 
 def _validaterevset(repo, revset, bookmark):