甜橙类秋季使用石硫合剂应慎重我场常在秋季红蜘蛛发生高峰期（９月底至１０月下旬果实成熟前）使用石硫合剂进行防治。多年实践表明，此时使用石硫合剂防治红蜘蛛，不仅效果比较理想，同时还能提高果实着色度，使果实色泽光亮。但对甜橙类来说，如果使用不当，易造成大量... Sweet oranges should be cautious about the use of lime-sulfur mixture in autumn. I often use the lime-sulfur mixture for the prevention and treatment of red spider mites in the autumn (before the end of September to the end of October before the fruit mature). Years of practice shows that the use of lime sulfur spar agent at this time control, not only the effect is ideal, but also can improve the fruit color, the color of the fruit bright. But for oranges, if used improperly, easy to cause a lot of ...