近几年来，日光温室西葫芦栽培面积扩大，在某些地区已成为冬春季节市场供应的主要蔬菜品种之一。在日光温室西葫芦栽培中用２４－Ｄ药液蘸花促进坐果已被许多人采用，但在不少地方２４－Ｄ药害时有发生，有的造成严重损失。一、２４－Ｄ药害的特征据观察，日光温室... In recent years, the cultivated area of ​​squash in solar greenhouse has expanded, and in some areas, it has become one of the major vegetable varieties supplied in winter and spring markets. In the greenhouse cultivation of squash with 2  4-D liquid dipped flowers to promote fruit set has been adopted by many people, but in many places 2  4-D injury occurred from time to time, and some cause serious damage. First, the characteristics of 2  4-D injury According to observation, solar greenhouse ...