1. Putrefaction: the corm will be infected, resulting in a lot of disease, which is very fast. After the disease, the diseased part should be removed, and the seed ball should be soaked with carbendazim to achieve the effect of disinfection and sterilization. We should pay attention to drainage when we use rotten fertilizer everyday.
2. Mosaic: after the disease, the plant will dwarf, the leaves will twist and deform, and in the later stage, it will be difficult to bloom. Take preventive measures and select healthy and good plants for cultivation. After the onset of the disease, the diseased plant shall be pulled out and destroyed in time.
3. Sclerotinia: it mainly occurs in the seedling stage, which will damage the corm and eventually cause the plant to rot. It is necessary to remove the diseased part and spray it with 50% tobujinke wet powder 500 times.
1. Water scorpion: in September, it will damage the buds of the bulbs, causing damage to the plants. First of all, we need to catch it manually and sprinkle quicklime on it to prevent it from climbing up.
2. Aphids: they will gather together and suck the juice inside the plant, causing partial water shortage and drying up of the plant, and finally causing damage to the plant. Usually pay attention to good ventilation to prevent the harm of aphid infection. In case of insect damage, spray 40% dimethoate emulsion 2000 times.
