Also, lack of winter freezes means that mites normally killed off by the cold will survive.
( Also ( , ( ( lack ( of ( winter freezes ) ) ) ( ( means ( that ( ( mites ( normally ( ( killed off ) ( by ( the cold ) ) ) ) ) ( will survive ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Also)) (, ,) (NP (NP (NN lack)) (PP (IN of) (NP (NN winter) (NNS freezes)))) (VP (VBZ means) (SBAR (IN that) (S (NP (NP (NNS mites)) (VP (ADVP (RB normally)) (VBN killed) (PRT (RP off)) (PP (IN by) (NP (DT the) (NN cold))))) (VP (MD will) (VP (VB survive)))))) (. .)))
During the heat wave the mites burst into flames.
( ( During ( the ( heat wave ) ) ) ( ( the mites ) ( ( burst ( into flames ) ) . ) ) )
(ROOT (S (PP (IN During) (NP (DT the) (NN heat) (NN wave))) (NP (DT the) (NNS mites)) (VP (VBP burst) (PP (IN into) (NP (NNS flames)))) (. .)))