应用灰色系统理论探讨瓢虫的迁飞和蚜虫的防治

在多年的探索中蔡晓明等人首次提出了中国七星瓢虫迁飞的假设,不仅从理论上做了论证,而且与实际现象相当符合。在一定的地面和高空的气象条件下就有迁飞的瓢虫出现,因此,在北方考虑蚜虫的防治时应当考虑瓢虫迁飞的因素,利用迁飞而来的瓢虫去防治蚜虫。由于有些因子之间的关系是灰色的,所以本文应用灰色系统理论做了探讨。从所得结论可看出用灰色系统理论探讨瓢虫迁飞与蚜虫防治的相互关系与人们的感性认识是一致的。

APPLICATION OF GREY SYSTEM THEORY TO THE MIGRATION OF LADYBEETLE AND APHIS CONTROL

After being probed for years, the hypothesis of the migration of ladybeetle cocinelle septempunctata L, in China was originally put forward by Mr. Chai Xiaoming. Furthermore it was not only theoretically proved, but also practically fit into the situation.Under the certain climatic conditions of surface and ground, there appears the migration of the ladybeetle. Therefore, when considering the control of northern aphis, we should think of the migration of the ladybeetle coming and also make use of them to control the aphis. This paper applies grey system theory to expound the relationship between the migration Of the ladybeetle and the control of aphis.