The major shoot pests of Pinus massoniana are Dioryctria rubella Hampson,Petrova cristata Walsingham,Gravitarmata margarotana Hein,D.pryeri Ragonot etc.In spring,the pests bore and eat pith in shoots,the damaged shoots then bend and wither,which directly affect the heigh growth of young pine and wood quality.Recently the IPM measures including forest management,chemical and biological control have been used to reduce th pest's population in the forest production.The practical methods are cutting down the da...
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