石硫合剂既是杀菌剂又可用作杀虫剂，它是碱性药剂，有效成份为多硫化钙，是春季果树萌芽前后最常用的农药之一。但如何提高石硫合剂熬制质量，仍是当前果园病虫防治中的主要问题。根据笔者多年来的经验与体会，熬制石硫合剂首先要做到“(生)石灰要好，硫磺要细，锅要大，火要 Stone sulfur mixture is both a bactericide and a pesticide. It is an alkaline agent and the active ingredient is calcium polysulfate. It is one of the most commonly used pesticides before and after spring fruit germination. However, how to improve the quality of stone sulfur mixture is still the main problem in the current pest control. According to the author’s experience and experience over the years, boil stone sulfur mixture must first be "(raw) lime is better, the sulfur should be fine, the pot should be large, fire to