Kiwifruit Spring Orchard Cleaning: Timing and Key Methods
1. Prevent pests and diseases early: Before bud break and during the budding stage, spray the trees with 100 to 150 times diluted barium polysulfide to control pests, or use 3 to 5 degrees Baume lime sulfur mixture to kill insect eggs and overwintering pathogens. After leaf expansion, spray the foliar fertilizer Nongkang 120, which both supplements nutrients and prevents disease. 2. Apply the bud-promoting fertilizer early: For large fruiting trees, apply compound...
In early to mid-March, kiwifruit is in the bud break stage, and spring orchard cleaning work for kiwifruit is already in full swing. Spring orchard cleaning for kiwifruit mainly targets scale insects, red spiders, overwintering pathogens, canker disease, and branch rot, with the aim of eliminating or reducing the overwintering pest and disease population and laying a solid foundation for safe production throughout the year.Spring orchard cleaning for kiwifruit should vary by cultivar. For the Hongyang cultivar, the focus should be on controlling canker disease while also preventing other pests. You can choose 68% basic copper sulfate (Dingruike) water-dispersible granules at 1500 times + 48% chlorpyrifos emulsifiable concentrate at 1000 times, or spray with 5 degrees Baume lime sulfur mixture. For the Hayward, Qinmei, and Xuxiang cultivars, with integrated pest and disease control as the focus, you can choose 80% sulfur (Chengbiao) water-dispersible granules at 400 times + 48% chlorpyrifos at 1000 times, or spray with 5 degrees Baume lime sulfur mixture. Note that the fungicide should first be diluted before being added to the spray tank, and then the emulsifiable concentrate insecticides should be added. Lime sulfur mixture should be used alone.