diff --git a/src/osgProducer/OsgCameraGroup.cpp b/src/osgProducer/OsgCameraGroup.cpp
index 4ef4cd53e..2035a0ac7 100644
--- a/src/osgProducer/OsgCameraGroup.cpp
+++ b/src/osgProducer/OsgCameraGroup.cpp
@@ -457,38 +457,6 @@ bool OsgCameraGroup::realize( ThreadingModel thread_model )
     return realize();
 }
 
-
-// small visitor to check for the existance of particle systems,
-// which currently arn't thread safe, so we would need to disable
-// multithreading of cull and draw.
-class SearchForSpecialNodes : public osg::NodeVisitor
-{
-public:
-    SearchForSpecialNodes():
-        osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN),
-        _foundParticles(false),        
-        _foundPagedLOD(false)
-    {
-    }
-    
-    virtual void apply(osg::Node& node)
-    {
-        if (strcmp(node.libraryName(),"osgParticle")==0 && strcmp(node.className(),"PrecipitationEffect")!=0) _foundParticles = true;
-        
-        if (!_foundParticles ||
-            !_foundPagedLOD) traverse(node);
-    }
-
-    virtual void apply(osg::PagedLOD& node)
-    {
-        _foundPagedLOD = true;
-        apply((osg::Node&)node);
-    }    
-    
-    bool _foundParticles;
-    bool _foundPagedLOD;
-};
-
 bool OsgCameraGroup::realize()
 {
     if( _initialized ) return _realized;
@@ -669,23 +637,6 @@ bool OsgCameraGroup::realize()
 
     setUpSceneViewsWithData();
 
-    // if we are multi-threaded check to see if particle exists in the scene
-    // if so we need to disable multi-threading of cameras.
-    if (_threadModel == Producer::CameraGroup::ThreadPerCamera)
-    {
-        if (getTopMostSceneData())
-        {
-            SearchForSpecialNodes sfsn;
-            getTopMostSceneData()->accept(sfsn);
-            if (sfsn._foundParticles)
-            {
-                osg::notify(osg::INFO)<<"Warning: disabling multi-threading of cull and draw"<<std::endl;
-                osg::notify(osg::INFO)<<"         to avoid threading problems in osgParticle."<<std::endl;
-                _threadModel = Producer::CameraGroup::SingleThreaded;
-            }
-        }
-        
-    }
 
     // if we are still multi-thread check to make sure that no render surfaces
     // are shared and don't use shared contexts, if they do we need to