Planting management techniques and control measures of main diseases and insect pests in Phalaenopsis

The daily maintenance and management of Phalaenopsis has been popularized for everyone. I don't know if the flower farmers have mastered the previous articles. The following editor will take you to learn a new kind of Phalaenopsis "all over the sky" planting and pest control techniques.

Temperature, humidity and light management Cartland is resistant to drought and cold, but likes the environment of high temperature and high humidity. The suitable temperature in the seedling stage is about 25 ℃, and the temperature in the growing period of the big seedling can be controlled at 15: 30 ℃. In winter, the room temperature is not lower than 15 ℃ to prevent frost injury and can not blossom. The humidity of the seedling stage should be controlled at about 80%. The humidity can be maintained by spraying humidification, water curtain humidification and spraying ground temperature and humidification. During the seedling stage, the humidity should be controlled at 60% 80%. Cartland should control the light in the seedling stage, use a sunshade net with a shading rate of 60% to 70% from spring to autumn, be extensive from big seedlings to flowering, and use 50% shading net in summer.

Water and fertilizer management Cartland growth period is from spring to early autumn, generally at the beginning of the growth period to ensure sufficient water, spring and summer new bud germination should pay attention to replenish water immediately, generally the surface of the substrate should be watered when it is dry (once every 2d, bark and mixed plant materials are watered at 9:00 and 15:00 every day, the same below), watering thoroughly at one time to maintain the dry and wet polarization of the substrate as far as possible Watering should be controlled in autumn and winter (water moss every 4-5 days, bark and mixed plant material 2-3 days) to keep the basin soil moist. Cartland should apply thin fertilizer frequently during the growing period, generally using the mixed controlled release fertilizer with the ratio of N, P and K of 1 ∶ 1 ∶ 1, topdressing 1.5 g manure for 14 days at the growth stage of large seedlings, using fertilizer at flowering stage with a higher ratio of P and K, and reducing the frequency and amount of fertilization after flowering. In the process of growth, special foliar fertilizer for orchids should be used, usually sprayed once every 7 days, and the ratio should be used according to the parameters provided by different brands.

3. Ramet propagation Cartland can propagate 3-4 years after coming out of the bottle, generally ensuring that each clump has 3-5 old false bulbs, and 1-2 new buds are the easiest to grow and bloom. Note that any gardening equipment that Cartland comes into contact with during ramet must be sterilized to prevent disease infection. Ramet should be carried out before April when the new bud has just germinated. Ramet should pay attention to cut off the dried false bulb, cut off the old rotten root, remove the weak bud, and leave the strongest new bud in the trunk. All wounds should be disinfected with sulfur powder and planted after the wound is dried. When planting, the new buds should be planted in the center of the flowerpot to ensure that the new plants have enough space for growth, and large plants and long-stalked plants should set up stents to prevent lodging. Cartland should not over-divide plants frequently, otherwise the floral character of the plant will be greatly weakened.

The common diseases in Cartland are anthracnose, soft rot, white silk disease, virus disease, etc., and the common pests are shell insects, slugs, red spiders and so on. In the cultivation stage, the prevention and control of diseases and insect pests should focus on prevention. On weekdays, it is recommended to spray 800-1000 times of thiazide EC, usually once every 7 days, and 75% chlorothalonil wettable powder 2000 times every 7 days for control. Drug treatment of diseases and insect pests is not recommended during flowering, but manual removal of diseases is recommended. The only way to prevent virus disease is to make the environment clean and ventilated, disinfect appliances in place, disinfect plants in place, and introduce plants without disease; once diseased plants are found, they should be burned and destroyed immediately, and the surrounding plants should be isolated and observed.

3.6 flowering management Cartland flowering period should pay attention to the constant temperature and light and ventilation, in order to ensure the normal development and color of flowers, and will not appear disease spots affect the ornamental quality. Large-flowered, multi-flowered and long-stalked varieties should set up stents to prevent lodging. Cartland's florescence lasts for 30 to 45 days, which is relatively shorter than other orchids such as Phalaenopsis, so it is best to sell it out of the shed when the first bud blooms. Cartland consumes a lot of plant nutrients during flowering, so topdressing should be done about 7 days after flowering. When spraying plants during flowering, try not to put water on flowers to prevent diseases.

These are the key points of Cartland's cultivation techniques. Welcome to continue to pay attention to Huinong Network and learn more flower and plant planting techniques!