( ( Upon ( removal ( of ( infested bark ) ) ) ) ( , ( ( ( the tunnels ) ( of ( the beetle ) ) ) ( ( will ( be ( found ( in ( ( ( inner ( bark surface ) ) and ) ( outer ( sapwood layer ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Upon) (NP (NP (NN removal)) (PP (IN of) (NP (JJ infested) (NN bark))))) (, ,) (NP (NP (DT the) (NNS tunnels)) (PP (IN of) (NP (DT the) (NN beetle)))) (VP (MD will) (VP (VB be) (VP (VBN found) (PP (IN in) (NP (NP (JJ inner) (NN bark) (NN surface)) (CC and) (NP (JJ outer) (JJ sapwood) (NN layer))))))) (. .)))
Upon removal of infested bark, the tunnels of the beetle will be found in inner bark surface and outer sapwood layer.
(ROOT (S (NP (NP (DT The) (JJS newest)) (, ,) (NP (NP (JJ outer) (NNS layers)) (PP (IN of) (NP (JJ secondary) (NN xylem))))) (VP (VBP are) (VP (VBN called) (S (ADJP (JJ sapwood))))) (. .)))