稻纵卷叶螟卷叶有虫率与化蛹率关系的研究

探索利用稻纵卷叶螟 Cnaphalocrocis medinalis（Guenée）卷叶有虫率估测化蛹率的方法和途径。本文基于稻纵卷叶螟化蛹进度的田间调查数据，用化蛹率（y）和卷叶有虫率（x）分别拟合直线函数、一元二次函数、一元三次函数、对数函数、指数函数和幂函数6种不同模型。结果表明，以一元三次函数方法估计精度最高，误差最小，应用效果最好，并根据最优数学模型建立化蛹率（y）与卷叶有虫率（x）的关系速查表。生产中可以应用拟合的 最优数学模型对田间稻纵卷叶螟化蛹进度进行监测。

Research on leafroller in worm pupation of Cnaphalocrocis medinalis

Explore the use of the leafroller leafroll parasite rate estimation methods and ways of pupation.Based on the leafroller the pupation progress of the field survey data, pupation rate (y) and leaf curl parasite rate (x), respectively, fitting a straight line function, a quadratic function, a cubic function, logarithmic function, six different models of the exponential function and a power function.The results showed that the highest estimation accuracy of a cubic function method, the error is small, and the application of the best and optimal mathematical model to establish pupation relationship Cheat Sheet leafroll parasite rate (x) (y).Optimal mathematical model fitting can be applied in the production field the leafroller pupation progress monitoring