Planting technique of Fulang flower

Before planting the Fulang flower, sow the selected seeds in the prepared hole plate, and then put the hole plate in the hotbed to raise seedlings. The seedlings can grow about 6 weeks after sowing, and the seedlings can be transplanted all night after growing 4-5 pieces. The best transplanting time is from late March to mid-April, and it should be planted shallowly. Finally, it is necessary to do a good job in post-planting management, including temperature, light, water and fertilizer, etc.

Common diseases and insect pests of Fulang flower:

1. Powdery mildew

Powdery mildew mainly harmed the leaves. At the initial stage, white powdery spring spots were formed on the leaves, which gradually spread all over the leaves, and finally the leaves dried up. The pathogen overwintered with the injured leaves and leaf remnants. Through Rain Water and airflow transmission occurred all the year round, but the disease was more serious from May to June. Heavy when it is wet and stuffy and sealed.

Prevention and treatment: at the end of plant growth, timely remove the diseased and residual tissue and burn to avoid continuous cropping; increase the application of phosphorus and potassium fertilizer to avoid excessive nitrogen fertilizer, improve plant disease resistance; strengthen ventilation and light transmission to avoid excessive humidity. At the initial stage of the disease, the patients were sprayed with sulfur gel suspension, trimethoprim, diniconazole and other agents.

two。 Viral disease

The leaves of susceptible plants produce chlorotic rings, and individual disease spots become necrotic spots. When the disease is serious, the leaves become smaller, wrinkle, hair, flowers show broken color, flowers become smaller, shape, flower color is not, the plant is in a dwarf state.

Prevention and treatment: pay attention to field hygiene, remove and burn diseased plants in time; use tissue culture extract seedlings as mother plants to establish a base for removing mother plants; timely control nematodes, dodder and other transmission vectors, and transmit virus through free juice; spray wine virus A, virus special and other agents to prevent or reduce the occurrence of diseases.

3. Most of the leaf mites were damaged by adults or nymphs on the back of the leaves, and a large number of green spots appeared on the leaf surface at the initial stage, which turned brown in severe cases, the tissue thickened and the leaf edge surface rolled up. With the bud germination, the mites transfer to the young petals, causing the petals to turn brown and can not be unfolded.

Prevention and control: spray alcohol propargite, triazotin, insect mite Rick (alfordine) and other control.

In addition, diseases and insect pests such as leaf miner, greenhouse whitefly and foot rot also endanger the growth of Fulang flowers, so we must pay attention to the prevention and control work.