喀什地区多毛小蠹发生与为害规律

摘要

In Shule county,we investigated the occurrence and harms of the adults of Scolytus seulensis Murayama in apricot orchards.The results showed that some adults emerged and began feeding and oviposition in mid-April. Four population peaks occurred in late June,late July,mid-August and early September.Branches of 80-110 cm in height to the east and south directions were easy to be damaged.s.seulensis was aggregated.With increasing degree of the damage,the amount of soluble sugar also increased in apricot phloems,but the amount of water decreased.The soluble sugar and the water were significantly different in apricot phloems with different degrees of damage.%在喀什地区疏勒县系统调查、研究了杏树多毛小蟗(Scolytus seulensis Murayama)的发生、为害规律,结果表明:4月中旬始见多毛小蟗成虫在杏树上蛀孔产卵,于6月下旬、7月下旬、8月中旬和9月上旬达到高峰期;高度80～110 cm的枝干和东、南2个方向生长的枝干易遭受小毒虫的入侵;多毛小蟗聚集为害;随为害程度的加重,杏树韧皮部含可溶性糖量也随之升高,韧皮部含水量随之降低,并且不同为害程度杏树韧皮部的可溶性糖含量和水含量存在差异.