The main disease of Lily Damping off is in seedling stage. Lily Damping off damages lily bulb and root system, causing bulb rot, root rot and finally plant erect and wither. The disease is common and has a wide range of hosts. When the disease is serious, it can cause the death of lily seedlings, causing greater economic losses, and the damage can be aggravated by waterlogging or low temperature in the field. The main control measures are as follows:
Damage and control of Lily Damping off
The control measures of Lily Damping off were as follows
First, Lily Damping off is mainly transmitted by soil, and continuous cropping will aggravate the disease. Rotation should be carried out, and the plots with good drainage and loose soil should be selected for cultivation. High border cultivation can be selected, and attention should be paid to furrow drainage.
Second, pay attention to select disease-free bulbs before sowing, and use 1:500 thiram solution or 40% formaldehyde solution with 50 times water to soak seeds for 15 minutes for disinfection.
Third, spray 1:2:200 Bordeaux solution once before emergence, spray 50% carbendazim 1000 times solution 2-3 times after emergence to protect seedlings. After the onset of the disease, the diseased plants were removed in time and the ward was disinfected with 50% lime milk.
Fourth, in the process of field management, we should pay attention to ditch drainage, improve ventilation and light conditions, and increase the application of phosphorus and potassium fertilizer, avoid partial application of nitrogen fertilizer, so as to improve disease resistance. Generally, 20 g to 30 g of potassium dihydrogen phosphate or high-efficiency biological phosphorus and potassium fertilizer is applied to the root of each plant once a month, or 2-3 kg of water per plant is sprayed with rotten human and livestock manure water.
Fifthly, the diseased plants should be removed in time and the diseased acupoints should be disinfected with 50% lime milk.
Pot culture of Lily
1. The best planting time is from September to October.
2. Soil environment requirements: the basin soil should be fertile, well drained, slightly acidic to neutral sandy loam, and the mixed medium of rotten leaf soil, sandy soil and garden soil can be used, with the ratio of 1:1:1.
3. Fertilizer and water management: apply rotten organic fertilizer and a small amount of bone meal in the pot, apply thin liquid fertilizer every two weeks from the beginning of growth to the beginning of flowering, and apply phosphorus and potassium fertilizer twice during flowering. During the peak growth period and dry weather, water more properly, keep the basin soil moist at ordinary times, but not too wet, so as to avoid bulb rot.
4. Pot soil replacement: change the pot once a year, and rotate the pot frequently during the growing period.
Pot culture of Lily