Symptoms: it is mainly harmful to the bulbs and seedlings. It is a kind of disease caused by fungi, which causes problems in the bulbs. It is mainly caused by improper operation during reproduction, which is harmful to saffron.
Prevention and control: when storing bulbs, remove the injured bulbs in advance, so as to prevent deterioration and infection of bacteria during storage. Spray with 50% tobujin WP 500 times.
Symptoms: it starts to appear from July to August, which is mainly harmful to the main bud part. In the later stage, when it is serious, it will harm the whole bulb part and affect the overall growth.
Prevention and control: if the disease is found, the plant should be pulled out in time, and then disinfected with lime powder. Before planting, soak in lime solution for about 20 minutes, and then dry before planting. In the seedling stage, you should also pay attention to that you can spray with the medicine of withered leaves, which can have a good effect.
Symptoms: This is one of the main pests, which plants are afraid of. It is mainly harmful to the leaves and stems. It sucks the juice to live, and then propagates in large numbers, which eventually causes the plants to lose nutrition and eventually die.
Prevention and treatment: the most direct method is drug treatment. Spray it with 1000 times 50% marathon emulsion once every 7-8 days, and remove it 2-3 times in a row.
