不同诱捕器诱杀大豆食心虫效果及诱虫量相关分析

Trapping and Killing Efficiency of Different Trappers on Soybean Pod Borer and Correlation Analysis of Trapped Amount

对吉林省九站地区2011年大豆食心虫(Leguminivora glycinivorella Matsumura)进行田间观测和诱杀防治试验,研究温度、降雨量与诱虫量的相关性。结果表明,大豆食心虫在该地区发生高峰在8月7日,成虫发生有多峰现象;诱杀防治使用新式通用诱捕器效果较好,其次为水盆型诱捕器。以吉林市2011年观测期当日最低温度(x1)、最高温度(x2)、降水量(x3)为自变量,单日诱虫量为变量(y),采用DPS数学模型麦夸特法建立线性回归模型,得出y=0.618 1x1+0.313 8x2-0.015 9x3(r=0.522 8),说明大豆食心虫单日诱虫量与当日最低温度、最高温度、降水量中等相关。

Trapping and killing experiments and field observation were conducted on Leguminivora glycinivorella Matsumura in Jiuzhan regions of Jilin in 2011 to study the correlation among temperature, rainfall and trapped amounts. The results showed that the occurrence of L. glycinivorella reached the peak in August 7th, and adults showed multi peaks. The best trapper was new general trapper, and the second was basin-shaped trapper. With the lowest temperature （x~）, maximum temperature （x2）, precipitation （x3） during the observation period as independent variables, and trapped amounts in one day（y） as a variable, a linear regression model was established by Marquardt method based on DPS （Data-Processing Station） mathematical model, which was y=0.618 lx1＋0.313 8x2-0.015 9x3 （r=0.522 8）. The regression model indicated that there were correlations among trapped amounts, lowest temperature, maximum temperature, and precipitation in the same day.