What are the latest control methods for common pests and diseases of goji berry?
Goji berry is a health-preserving and nourishing food. In daily life, many people often use it to make tea, as it has effects such as nourishing the liver, tonifying the kidneys, and moistening the lungs. In addition, it also has good ornamental value. During goji berry cultivation, it is affected by various pests and diseases, which seriously affect the yield and quality of goji berry. Below, we will introduce the symptoms and control methods of common pests and diseases of goji berry.
1. Goji berry anthracnose
Goji berry anthracnose mainly damages the fruit and can also affect leaves and flowers. Because after infecting the fruit it causes the fruit to turn from red to black, it is also called black fruit disease. It is a fungal disease and is also a major disease in the goji berry cultivation process. This disease can occur throughout the entire growth stage of goji berry, and is more harmful during rainy seasons, spreading relatively quickly. When the disease occurs, small brown spots appear on the fruit, then spread into irregular lesions. As the disease develops, the lesions begin to sink and soften and turn black. In dry periods, the entire fruit shrivels, while in the rainy season or periods of higher humidity, orange-red spore masses also appear on the fruit surface, and it can also affect leaves, causing the same symptoms on the leaves.
Control methods: Strengthen field management. In winter, prune diseased branches and leaves, then collect the fallen branches and leaves on the ground, burn them in a centralized manner or bury them deeply, and then spray Bordeaux mixture during rainy periods for prevention. When the disease occurs, mancozeb and thiophanate-methyl can be sprayed alternately for control.
2. Goji berry gray leaf spot
Goji berry gray leaf spot is also a fungal disease, but it mainly damages leaves and can also affect fruit. When the disease occurs, round lesions appear on the leaves. The central area of the lesions is gray-white or brown, the edges are darker in color, and the affected areas are sunken. As the disease develops, the lesions begin to turn brown and dry up, and finally black mold-like substances appear.
Control methods: Likewise strengthen field management. The prevention method is the same as for anthracnose. When the disease occurs, spray 50% carbendazim wettable powder at 500 times dilution, once every half month, for 2-4 consecutive times to treat it.
3. Goji berry powdery mildew
Goji berry powdery mildew is also one of the fungal diseases. It mainly damages leaves and can also affect fruit in the early growth stage. It is named because when the disease occurs, the leaves are covered with a white powdery mold layer. When the disease occurs, the leaves begin to lose green color, wrinkle, and curl. As the disease develops, the leaves finally turn yellow and fall off.
Control methods: The prevention method is the same as the previous two, which is to clean the orchard and spray Bordeaux mixture. When the disease occurs, spray 25% triadimefon at 800 times dilution and 50% carbendazim at 500 times dilution, likewise once every half month, for 2-3 consecutive times.
4. Insect pests
During the growth of goji berry, there are many insect pests, mainly including goji berry eriophyid mite, goji berry aphid, goji berry leaf beetle, goji berry leaf beetle, and goji berry scentless plant bug. They mainly damage young and tender parts such as leaves, tender shoots, flower buds, petals, and young fruit. Their damage methods are also chewing fleshy tissue or sucking sap. This leads to blocked plant growth, slow growth, weakened tree vigor, and finally affects yield and quality.
Control methods: They mainly cause damage as larvae, so a control method combining agricultural and chemical measures can be adopted. In winter, be sure to clean up weeds and debris in the field, and combine watering and loosening the soil to destroy their overwintering environment and reduce pest sources. During outbreak periods of insect pests, spray pesticides for control.
The above are control methods for common pests and diseases of goji berry. We hope it can help you. To learn more about goji berry cultivation knowledge, please stay tuned to us.