CAJ | 학술논문

在崇左市江州区以零星分布在林中的已受桉树枝瘿姬小蜂（Leptocybe invasa Fisher＆La Salle）严重为害的巨园桉（Eucalyptus grandis×E.tereticornis）DH201-2植株作为虫源株,研究其产生的桉树枝瘿姬小蜂对由尾巨桉（Eucalyptus urophylla×E.grandis）DH32-29组成的幼林自然扩散为害情况。结果表明：以虫源株为中心约100 m2范围内尾巨桉DH32-29平均受害株率69.6%,平均有虫瘿株率51.9%,受害植株中平均枝条受害率20.4%,平均有虫瘿枝率1.9%。根据受害植株中有虫瘿枝率,巨园桉DH201-2虫源株所产生的桉树枝瘿姬小蜂对尾巨桉DH32-29扩散为害程度为轻度。
재숭좌시강주구이령성분포재림중적이수안수지영희소봉（Leptocybe invasa Fisher＆La Salle）엄중위해적거완안（Eucalyptus grandis×E.tereticornis）DH201-2식주작위충원주,연구기산생적안수지영희소봉대유미거안（Eucalyptus urophylla×E.grandis）DH32-29조성적유림자연확산위해정황。결과표명：이충원주위중심약100 m2범위내미거안DH32-29평균수해주솔69.6%,평균유충영주솔51.9%,수해식주중평균지조수해솔20.4%,평균유충영지솔1.9%。근거수해식주중유충영지솔,거완안DH201-2충원주소산생적안수지영희소봉대미거안DH32-29확산위해정도위경도。
Based on scattered trees of Eucalyptus grandis×E.tereticornis DH201-2 which severely attacked by Leptocybe invasa Fisher La Salle,observations on dispersal damages of Leptocybe invasa Fisher La Salle deriving from infested trees to young plantation of Eucalyptus urophylla×E.grandis DH32-29 was carried out from November 2009 to October 2010 in Jiangzhou district,Chongzuo city.The results showed that about 100 m2 around each infested tree of Eucalyptus grandis×E.tereticornis DH201-2,on average 69.6 % of Eucalyptus urophylla×E.grandis DH32-29 are harmed by Leptocybe invasa Fisher La Salle,and 51.9 % of trees develop galls,of the injured trees 20.4 % of branches are infected and 1.9 % of branches produce galls.Light infestation of Leptocybe invasa Fisher La Salle dispersing from the infested trees of Eucalyptus grandis×E.tereticornis DH201-2 to Eucalyptus urophylla×E.grandis DH32-29 was demonstrated on the basis of the percentage of branches with galls.