Key points of maintenance and management of potted flowers in summer

Summer is not only the peak period for the growth and development of most flowers and trees, but also the key period for management.

1. Shade most potted flowers such as snow in June, camellias, rhododendrons and magnolia can not stand the direct light of summer, so potted flowers should be placed in a shady shed or under the shade of trees. The shade shed can be made of bamboo curtain, grass curtain, shade net and so on. At the same time, at noon, water should be sprayed to the nearby ground and shady shed to cool down and increase humidity, which is conducive to summer prevention of flowers and trees.

2. watering has the advantages of high temperature in summer, fast water evaporation and exuberant transpiration, so Qingqin watering, the amount of watering and the number of times are flexibly controlled according to the weather and plant species. The best time to water is in the early morning or evening, avoid watering at noon in hot summer. The best water quality is Rain Water or pond water. If tap water is used, it should be stored in a water tank or storage tank for 24 hours to raise the temperature and let the chlorine out.

3. Fertilization of potted flowers in summer should be carried out according to the principle of frequent application of thin fertilizer and less amount of fertilizer, and the concentration should not be too high, so as not to cause excessive branch growth or plant wilting. Fertilizers should be used in a reasonable way, and pay attention to adjust the pH. The concentration of chemical fertilizer is generally 0.2%, 0.5%, and topdressing should be strictly controlled at noon in midsummer.

4. Pruning flowers and trees and re-pruning are generally carried out in spring and winter. According to the specific conditions of flowers and trees, summer also needs proper pruning. Flowers and trees that bloom in summer, such as jasmine, Fusang and rose, should be pruned in time to prevent nutrient consumption, and flowers and trees with strong germination such as June snow and banyan should be pruned and reshaped in time; in order to maintain nutrients, excess buds, buds and overdense branches should be removed in time.

5. Prevention and control of diseases and insect pests in summer, the temperature is high and Rain Water is more, which is the season of frequent occurrence of diseases and insect pests. During the flower growing period, aphids, red spiders, shell insects and other pests generally occur; 40% omethoate and 90% dichlorvos 1500-2000 times can be sprayed; if white powder or anthrax occurs, Bordeaux solution, 50% topzine or 65% Dysen zinc solution can be used for control.