作　　者： ; ; ; ; ; ; ; ;

机构地区： 河北农业大学

出　　处： 《东北林业大学学报》 1997年第5期5-9,共5页

摘　　要： １９９３～１９９４年在黑龙江大庆市对杨圆蚧的发生规律进行了野外调查，并通过资料分析的方法对其进行了研究，结果表明：小黑杨（Ｐｏｐｕｌｕｓｘｉａｏｈｅｉ）、小青黑杨（Ｐｐｓｅｕｄｏｓｉｍｏｎｉ×ｎｉｇｒａ）比中东杨（Ｐｂｅｒｃｌｉｅｎｓｉｓ）抗虫性强。杨圆蚧在树干上的分布（累积虫口密度）为：树干中部＞上部＞下部，树干上东北方位的蚧虫数量比西南方位多。调查结果还表明：杨树从３～４年生开始被害，７～９年生被害最严重。杨圆蚧的危害，林缘比林内重、林带比片林重。通过对黑龙江省１０个市县杨圆蚧发生面积与温度、湿度等气象因子关系的研究，建立了杨圆蚧发生面积的多元线性回归预测模型，经检验证明，用该模型进行初步预测是可靠的。 Based on the investigation in field and data analysis, the regulations of the outbreak of Quadraspidiotus gigas was studied in Daqing City during 1993-94. The results indicated that the insect-resistance of Populus xiaohei and the hybrid of Populis pseudomonii×Populus nigra was higher than that of Populus beroliensis . The distribution of the poplar scales on the trunk (Accumulated insect density) was in the order of middle>upper>lower, and the number of poplar scale on the northeast direction of the trunk were more numerous than on the southwest direction。 Surveys showed that the damage of the poplar tree began in the age of 3-4 years, and became most serious in the age of 7-9 years. The damage of the poplar scale was more serious on the border of the forest than in the forest, more serious in forest belts than in extended forests. Investigation of the relationship between the occurring area of the poplar scale and meteological factors such as humidity, temperature in ten cities and counties in Heilongjiang Province formulated a multiple linear regression model for the prediction of the occuring area of the poplar scale. Tests demonstrated that the use of this model for preliminary predition gave reliable results.

关 键 词： 杨圆蚧 发生规律 预测模型

领　　域： [农业科学] [农业科学]