Second, root knot nematode disease First, strengthen the quarantine to prevent the transfer of diseased mulberry seedlings. Second, the sporadic disease strains that occurred in Mulberry Park were dug up and burned. Third, mulberry disease First of all, because the stomata and the wound is the main route of transmission of the disease bacteria, therefore, the summer and autumn leaves as much as possible to keep the petiole, reduce tree trauma; Second, the prevention and treatment of drugs: the early onset, in the cut off the tip, with 15% The agricultural streptomycin 500 times spray control, spraying once every 7 days, spraying the top of the tree and the back of the leaves, spray 2 or 3 times to control the disease. 4. Mulberry Powdery Mildew First, choose the mulberry variety that has been hardened by mulberry leaves. Second, timely collection of leaves to prevent hardening of mulberry leaves. Again, the agent is prevented and the control method of brown spot is the same. Calcium carbonate is a kind of inorganic compounds, chemical formula optimization for CaCO ₃, commonly known as grey stone, limestone, limestone, marble, etc. Calcium carbonate is neutral, basically insoluble in water, soluble in hydrochloric acid. It is one of the common substances on the earth. It exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks. It is also the main component of animal bones or shells. Calcium carbonate is also an important building material and is widely used in industry. Calcium Carbonate,Omya Calcium Carbonate,Imerys Calcium Carbonate,Calcium Carbonate For Breathable Film Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com
To prevent these diseases of mulberry in summer
First, the brown spot disease First, the winter clearing of the mulberry within the park litter concentration burned, pay attention to the ditch drainage during the rainy season, from the next up mining leaves, improve the mulberry park ventilation and light conditions. Second, the chemical control, sprayed with 50% carbendazim WP 800 to 1000 times, sprayed again at intervals of 10 days, can effectively control the occurrence of the disease.