Effective control of flower pests

Symptoms of bacterial soft rot: The bases, rhizomes, roots, etc. of the leaves are immersed in water and rot. The roots are softened, rotted, and odor odors are emitted. In severe cases, the interior will rot, leaving only the epidermis. The pathogens will survive in the soil for a long time, mainly from the wound. Intrusion is most likely to occur during periods of high temperature, humidity, and rainy weather. Control measures: 1. The diseased plants were immediately removed and burned. Infected rhizomes were only cut off at the beginning of the disease. 2. The plants were sprayed with 1000--1500 times each of streptomycin and oxytetracycline once every three days for three consecutive times. 3, pay attention to ventilation to reduce humidity. Root rot (Fusarium Wilt) Symptoms: roots and roots are flooded, young leaves lose their vitality and wither. Roots and stems, besides the epidermis, are softened and rotted. The roots are browned and rot. The roots are only left with fiber, and root rot usually attacks. Seedlings, newly transplanted plants, or immature plants. Control measures: 1. The diseased plant was found and burned immediately to prevent contamination. 2. In the early stage of onset, the above-ground part sprays 50% thiotriptate 1000 times every 10 days, 70% thiophanate-methyl 800 times, 77% kills 600--800 times, and the underground part uses 70% sorbet. Manganese zinc 400--600 times watered two to three times. 3. Move pots, matrices and pots with new and old ones to be used after disinfection and remove dead or rotten roots when moving. 4, at any time ventilation, reduce humidity. Symptoms of leaf blight: Initially dark brown, internal gray or dark brown lesions like sunburn symptoms, long-term lesions can be seen on the black powder, this kind of bacteria lurking on the plant, not immediately morbidity, pending When the tissue activity of the plant is weakened due to sunburn, phytotoxicity, and other reasons, the disease may occur. Prevention and control measures: 1. Find out that the dead leaves should be isolated in time and cut the dead parts and burn them. 2. Spray the plants with 50% carbendazim 800--1000 times, once every 5 days.

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