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double the situation that drop. Since our country produced disease of loose material wireworm 1982 oneself, produce area and amount of tree of die in one's bed to show ascendant trend wpc boards south africa all the time. And disease of wireworm of our country loose material produced an area 2002 79 thousand hectare, reduce 6000 hectare than 2001; The die in one's bed with deadly disease of loose material wireworm plants 4.619 million
trunk of a tree, reduce 700 thousand diy paver bench idea individual plant than 2001. Produce area and amount of tree of die in one's bed to drop somewhat, never had had. Disease of wireworm of our country loose material happens and endanger especially big revive, 3 provinces realized short for Zhejiang Province, Anhui double drop, disease of wireworm of this loose to the whole nation material produces a trend turn round main deck at moratuwa had conclusive e
ffect. Height of our country government values job of prevention and cure of silvan plant diseases and insect pests. On April 12, 2002, general office of the State Council allotted " prevent about strengthening disease of loose material wireworm further and inform except what control the job " , national forestry bureau building a wood fence on a long gentle slope takes this height seriously, carry out seriously fulfil. In June 2002, national forestry bureau
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