Ginger planting techniques: why do ginger have red leaves?

Why red leaves? Please explain why. It was found in the ginger field that many ginger leaves turned red, some even the leaves of the whole stem were red, the old leaves at the lower part were serious, and gradually reduced upward. This situation was distributed in dots in the ginger field. Although the leaves are discolored, the leaves are intact, no disease spots are found at the base of the stem, and insect eyes are found at the base of the stem near the ground. Therefore, the red color of the leaves of ginger may be caused by pests biting the stem. A common pest that damages ginger stems is the ginger borer, commonly known to vegetable farmers as a "cutting bug." Ginger borer larvae bite into ginger stems, eventually causing hollow stems, resulting in water and nutrient transport blocked, making ginger leaves discolored, eventually withered. Once the ginger borer damages a large area, it has a great impact on the yield of ginger, so it should be controlled mainly at present. Although some ginger farmers use pesticides, they are mixed with fungicides and sprayed only on the leaves. The middle and lower stems do not contact the liquid medicine, so the middle and lower stems become the focus of pest damage. The author suggested that vegetable farmers should use pesticides alone, such as DuPont Kangkuan (5 ml/bag, 30 jin water) mixed with organic silicon adjuvant, and then spray the middle and lower stems after secondary dilution, or mix with emamectin to kill adults at the same time, so as to avoid spawning and reproducing in the upper part of ginger. Click for more ginger growing techniques Click for more vegetable growing techniques