Spodoptera litura: also known as tawny night moth, is a kind of overeating pests, larvae eat yellow ginger leaves, buds, flowers and fruits, when the large-scale occurrence of the whole plant can be eaten into a light pole, causing serious losses. The worm can occur for multiple generations in 1 year, and the larvae are gluttonous at 4 to 6 years of age. They are nocturnal and dormant, and the main damage period is from July to October. Should take advantage of the larvae 1-2 years of age for chemical control. Use 50 ml of BT emulsion per acre and use at temperatures above 20°C. It can also be sprayed with 90% trichlorfon or 20% diflubenzuron No. 1 500-1000 times, or sprayed with 2.5% dichlorvos 2000-3000 times. Basal rot: also known as root rot, which damages the roots of the turmeric roots, roots, and roots near the terminal buds, resulting in poor vine growth or dead plants. In the early stage of disease, the base of the vine forms brown irregular spots, after which the spots expand into brown long spots, the middle of the spots is sunken, the surface of the spots often has inconspicuous faint brown spider silk molds, and the rhizome often develops near the terminal buds. Irregular brown spots develop, and the base of the vine shrinks and the entire plant withers. For prevention and treatment, one should change crops for rotation, planting crops after 2 to 3 years of cultivation for more than 3 years; second, before transplanting, soak ginger with 70% thiophanate-methyl 1000 times for 1 hour, then dry and transplant; In the early stage of the disease, 50% carbendazim 400 times, or 95% of the enemy 500 times enema root irrigation. Anthracnose: It is a common disease in the production of yellow ginger, which mainly damages the leaves or vines. At the beginning of the disease, irregular small spots of dark green water-sag-shaped depressions form at the tip of the leaves or leaves, and then gradually expand from brown to black-brown to irregular in shape. The middle of the lesion is gray-brown or off-white. There are irregular concentric ring veins, when the temperature is large, the surface of the lesion can be seen pink sticky material, that is, conidia, and many small black spots are formed on the surface of the later lesions, ie, conidia discs. The boundaries between the diseased and health departments are obvious, and several lesions often communicatively become one big lesion. The diseased part is easily broken and perforated or the leaves fall off. Petiole damage, the formation of water stains brown long lesions early, the latter part of the disease dark brown shrinkage, leaves off. The vines suffered damage, with brown dots in the early stages, and afterwards they expanded into irregularly shaped depressions. The vines shrank and withered to death. Control methods, one should rotate, two can be sprayed 70% mancozeb WP 500 to 600 times or 75% chlorothalonil wettable powder 700 to 800 times liquid.