Belgian Rhododendron, a Western Beauty from across the Ocean

Generally speaking, it is relatively easy to cultivate Belgian rhododendron. The four elements we need to pay attention to when planting it are time, mode, operation and management. Let's learn more about it.

Four elements of cutting and propagation of Belgian rhododendron

Time: Belgian rhododendron peanuts are long and can be planted all the year round. Generally, they are most suitable for breeding in spring and autumn, from March to April in spring and August to September in autumn.

Method: ① put the strips into the nursery bed according to the row spacing of 2 x 3 "meters" to raise seedlings. ② arranged the artificial nutrition bowls in the shed, and each nutrition bowl was inserted into I-2 strips. ③ inserts the strips directly into the human basin and inserts 4 strips in each basin to form a pot out of the nursery.

Operation: the leaves should not be retained too much in the process of cutting. generally, it is appropriate to keep 3-4 leaves at the top to minimize the lack of water caused by water transpiration. If the depth of cuttings is 0.5-1 cm, it is easy to cause stagnant water and rot in the bark of the stem, which will affect rooting; if it is too shallow, it is easy to lose water and wilt.

Management: soak in water after insertion, water every 3-5 days, keep the soil moist, cover the shading net at the same time, strictly prevent the direct sun from the seedbed.

Flowering Control techniques of Belgian Rhododendron

Timely plastic surgery: the shaping time is calculated and determined according to the artificial flowering time and the inoculation time needed to regulate and control the variety. The main methods are: to cut short the strong new shoots, to tip the general new shoots, and to remove the diseased and residual branches with styling design. Belgian rhododendron plastic surgery is mainly to pick the heart, every 60-80 days, each time the new tip is required to be flat, in order to form compact and smooth. If New Year's Day is required to blossom during the Spring Festival, the last time to set the shoot should be in the south of the Yangtze River from early June to early July, which can be postponed in the south and earlier in the north.

Spraying growth inhibitors: about 20-30 days after shaping, when the new shoots grow to about 3cm, plant growth inhibitors can be sprayed to promote the transformation of plants from vegetative growth to reproductive growth and make flower buds differentiate on time and develop neatly.

Adjusting the proportion of nutrients: after flower bud differentiation, the plant growth is mainly reproductive growth, the nutrient composition should be mainly phosphorus and potassium fertilizer, and the suitable ratio of nitrogen, phosphorus and potassium during the incubation period is 15:18:18.

Using temperature control facilities to adjust the florescence error: due to the unforeseeable environmental influence, there is inevitably a certain error in the florescence regulation. The adjustment method is to appropriately increase or lower the air temperature to speed up or delay the flower bud opening. The suitable temperature for bud flowering is 25 ℃ in daytime and 15 ℃ at night.

Pest control of rhododendron in Belgium

There are not many pests in Belgian rhododendron, the main pests are: leaf roll moth (rolling leaves to eat leaves), mites (causing leaflet disease), crown net bugs (causing leaf white spots, leaf back stains). The corresponding pesticides are: cypermethrin 2000 times to control leaf moth and crown net bug, dicofol 1000 times, triyne mites 1500-2000 times to control mites.

The main diseases of Belgian rhododendron are black spot, leaf spot, stem blight, etc., and fungicides such as Dasheng (mancozeb), 3000 times of world height, 600 times of killing, 600 times of topiramine and 2000 times of clotrimazole are used to control cuckoo diseases in Belgium. once every 10-20 days. Long-term overcast and rain, to prevent and cure after rain; flowering should pay attention to the prevention and control of Botrytis cinerea, at the beginning of flowering, the prevention and control of Botrytis cinerea should be used every 7-10 days, a total of 2-3 times.

Belgian azaleas are graceful and colorful. Putting them in the living room and other places can increase the vitality of the room and make the guests feel full of enthusiasm.