Gardenia cultivation methods and pest control

Gardenia is a beautiful, white, large, and evergreen shrub of the Rubiaceae family. It can only be planted in gardens and scenic areas, and can also be grown in pots at home. However, many people do not know how to grow gardenias, and some diseases and insect pests often occur during the cultivation process, which makes people very upset. I will give a comprehensive introduction to the cultivation methods of gardenias, and will also write down all the prevention and control methods of the common diseases of gardenias and tell you.

Farming methods

Gardenia is a plant that likes to grow in a warm and humid environment. It likes sunlight, but cannot be exposed to sunlight. Usually, it should be planted in loose, fertile, well-drained, slightly acidic soil. During the cultivation period of gardenia, attention should be paid to watering, keeping the pot soil moist, and fertilizing frequently. The fertilizer should be a well-rotted thin fertilizer. In addition, during its peak growth season, ferrous sulfate should be added every 15 days to effectively prevent the soil from becoming alkaline. After entering winter, the water supply should be strictly controlled, but the leaves can be sprayed with clean water.

Pest control

1. Chlorosis

Yellowing disease is a common disease in gardenia cultivation. There are many reasons for this disease, and different methods should be adopted to prevent and treat it. Yellowing will occur when gardenia lacks fertilizer. When it is sick, fertilizer can be added in time. In addition, excessive watering or low temperature can also cause yellowing disease in gardenia. At this time, timely adjustment of water, supply and environmental temperature can significantly control the disease.

2. Scale insects

Scale insects are a common disease of gardenia during cultivation. It is mostly caused by poor indoor ventilation and high humidity. After the disease occurs, you can scrape it off with a bamboo stick, or you can use No. 20 petroleum emulsion diluted with 200 times clean water and then spray it.

3. Coal pollution disease

Sooty mold is also a common disease in gardenia cultivation. After it occurs, the leaves of gardenia will lose their luster and the flowering period will be shortened. The best way to prevent and treat this disease is to spray the plant with a solution of 1,000 times carbendazim. In addition, you can also wipe the leaves of gardenia with clean water to restore its luster. This disease often occurs with scale insects, and scale insects are an important cause of sooty mold. In other words, if the appearance of scale insects is obviously prevented, the incidence of sooty mold can be reduced.