To study the interaction between Eriosoma lanigerum and apple trees,olfactory response of the aphid to different kinds of apple branches was tested by Y-olfactometer and volatiles from the branches were extracted with HS (Head-space) and measured with GC-MS.

Therefore, screening of excellent lignin-degrading fungi, is helpful to improve degradation rate of vineyard pruning lignin and to promote the comprehensive utilization of the vineyard prunings, which has very important application research values.

? In 1997,autho studied the effect of cleansing to Macrophoma kawatsukai on the stem of apples with 72% Duel,52% Mon097 and 65% PcP-Na.

Pyroligneous acids were prepared throngh pyrolysis of apple tree branch at 3 temperature ranges.