刺槐尺蠖防治指标的研究  

Control indexes of Napocheima robiniae in black locust

作　　者：朱雨行 

机构地区：[1]河南省森林病虫害防治检疫站,河南郑州450008

出　　处：《中国森林病虫》2007年第2期14-17,共4页Forest Pest and Disease

摘　　要：经过对刺槐的蓄叶量、叶面积、刺槐尺蠖食叶量、人工模拟摘叶对刺槐生长量影响等因子的调查分析,得出胸径D与刺槐蓄叶量M之间的关系式为M=135265.73+13949.41D(相关系数r=0.976),刺槐叶面积与鲜重(长宽平均值)的关系:S=0.096W-0.086(r=0.986),S=1.99L-0.68(r=0.988),刺槐尺蠖幼虫期平均每头损叶量为295.45 cm2,根据CT=M*H/Q(1-R)关系式,计算出不同径阶刺槐树的刺槐尺蠖的防治指标。The analysis of the factors such as the amount of leaves, leaf area, defoliating amount of Napocheima robiniae and effect of artificial removal of leaves on the black locust growth showed that the regression model of breast height diameter （D）and leaf area per black locust （M）was M = 135265.73 ＋ 13949.41D; The regression model of leaf area and fresh weight （average value of long breadth） was S = 0.096 W - 0.086, S = 1.99 L - 0.68 ; The average defoliating amount of per Napocheima robiniae in larval period was 295.45 cm^2 ; The control indexes of population density of Napocheima robiniae larva were calculated.

关 键 词：刺槐 刺槐尺蠖 防治指标 

分 类 号：S763.42[农业科学—森林保护学]