Over summer and over winter

The suitable growth temperature of most flowers is 15-25 ℃. If the temperature exceeds 40 ℃ or is lower than the lowest temperature that different flowers can tolerate, flowers will be hurt

Safe summer

The high temperature and strong sunshine in summer often make some temperate plants unsuitable for the extreme heat, making some shade plants vulnerable to sunburn

Therefore, the family can raise flowers by shading, ventilation, spraying water, adjusting the placement of potted flowers and other methods to improve the environmental impact, reduce the temperature, and make the flowers spend the summer safely

Safe wintering

Frost damage and frost damage in winter have a great impact on the growth of flowers. Some flowers that are not resistant to cold will die due to frost. In autumn, plants are still in the growth period, and some flowers suffer from early frost. After dormancy in spring, plants began to sprout and germinate. At this time, they were hit by late frost and the damage was also very serious

During frost fall, the vulnerable flowers can be protected by covering with soil or film in courtyard cultivation. The potted flowers on the balcony can be protected by building a plastic shed on the south wall. When it is cold in the evening, the top and surrounding of the shed should be covered with woven bags or gunny bags to keep warm

Glass enclosed balconies have been installed. Milan, Fusang, crab claw orchid, he's impatience, variable leaf wood, etc., which are not resistant to cold, should be moved indoors and covered with transparent plastic bags to protect the winter

In order to increase the cold resistance of flowers and trees in winter, watering should be controlled in management, but it is still necessary to supplement water in time according to the situation. Due to negligence of management, dry death often occurs in family flower raising in winter

Pest control

The principle of "prevention first" should be mastered in the prevention and control of diseases and pests by family flower raising. Strengthen management, improve the ventilation conditions of the growth environment, do a good job in fertilizer and water management and pruning, make the flowers and trees grow and thrive, enhance their resistance to diseases and pests, and timely remove dead branches and leaves to prevent the spread of diseases and pests

Pest

Chewing pest

Damage the roots, stems, leaves, flowers and fruits, and the damaged parts have notches, perforations, holes, etc. Such as green worm, thorn moth, longicorn beetle, crab grub (beetle larva), etc

Use stomach poison, contact pesticide, such as trichlorfon, trichlorfon, fenpropathrin, phoxim, etc

Absorptive pest

Pests use mouthparts to stab into plants to absorb juice. Such as, aphids, scale insects and red spiders (MITEs), the damaged stems and leaves appear spots, shrinkage, discoloration and other symptoms

Contact killing and inhaling pesticides were used to control, such as dimethoate, chlorhexidine and so on

Disease

Fungal diseases:

When invaded by fungi, mildew and powder can be seen on the surface of the host. Symptoms include sudden collapse, withering, spots, scabs, mildew, wilting, etc

The main drugs are carbendazim, tolbuzine methyl, chlorothalonil, etc

Bacterial diseases:

Damaged by bacteria, the leaves appear watery and translucent spots, which are limited by leaf veins. The soft organs are necrotic, sticky and smooth, and have a bad smell. For the diseased stem with wilting, the vascular bundle can be seen browning in cross section

The main drugs are Jinggangmycin, agricultural streptomycin, etc