The main propagation method in Mao Dujuan is cutting. Before and after awning, select new branches with a length of 5 5- 10/0cm. They are cut off at the bifurcation point, and the lower leaves are peeled off, leaving three or four upper leaves. 13 branches are inserted into the soil, sprayed with water and covered with plastic film. We should strengthen management at ordinary times. It can be transplanted in a year. Potting, heel and planting can be done. ?

Pest control:

The pests in Mao Dujuan are mainly red spiders and aphids. , you can spray pyrethroids, and the effect is good. If it's not dead after three days, spray it again. The disease is mainly black spot disease, which is caused by hot environment and insufficient light. Measures can be taken to promote air circulation on the one hand and spray Bordeaux mixture and carbendazim on the other.

Precautions:

To ensure a warm environment, it should be around 15℃ in winter, 30℃ in summer and 20 ~ 25℃ in spring and autumn. There is plenty of sunshine in winter and spring, and it is half cloudy in summer and autumn. Watering needs to keep the basin soil slightly moist, and there can be no drought or wet waterlogging. It is best to pour thoroughly when the topsoil is dry. The water to be poured is preferably mixed with ferrous sulfate and organic fertilizer or special fertilizer.

Extended data:

I. Introduction to Mao Dujuan:

The scientific name of Mao Dujuan is Rhododendron pulchrum Sweet, also known as colorful Rhododendron. It is a semi-evergreen shrub with spreading branches, thin leathery leaves, terminal umbels, 0/-5 flowers, rose-purple corolla, wide funnel-shaped, oblong oval capsules, and flowering for 4-4 days.

Rhododendron pubescens likes warm and humid climate, and is resistant to shade and avoid sun exposure. Distributed in China, Jiangsu, Zhejiang, Jiangxi, Fujian, Hubei, Hunan, Guangdong, Guangxi and other provinces. There are many azaleas, which can be trimmed and arranged under the forest, or mixed with other plants to form a patterned flower bed.

Second, the morphological characteristics:

Semi-evergreen shrub,1.5-2.5m high; Branches spreading, grayish brown, covered with light brown strigose. Leaves are thinly leathery, oblong to elliptic-lanceolate or oblanceolate, 2-5(-7) cm long and 1-2.5 cm wide, with blunt tip, wedge-shaped base, whole margin, dark green at the top, light yellowish brown coarse hair at first, and nearly hairless at the bottom. Petiole 3-6 mm long, densely brown strigose.

The bud is ovoid, with yellow-brown hairs on the outside and along the middle of the scale and mucus inside. Umbellies are terminal with 1-5 flowers; Pedicel 0.8- 1.5 cm long, densely fawn villous; Calyx large, green, 5-parted, lobes lanceolate, about 1.2 cm long, strigose; Corolla rose purple, wide funnel-shaped, 4.8-5.2 cm long, about 6 cm in diameter, 5 lobes, wide oval, about 3.3 cm long, with crimson spots; Stamens 10, subequal, 3.5-4 cm long, filaments linear, puberulent at the lower part;

Ovary ovoid, 3 mm long, 2 mm in diameter, densely covered with yellow-brown bristles, style about 5 cm long, slightly longer than or equal to corolla, glabrous. Capsule oblong-ovoid, 0.8- 1 cm long, bristle-like, persistent calyx. The flowering period is April-May, and the fruiting period is 9-65438+1October. This species is similar to short spike wood, but the corolla of this species is rose purple, and there is no glandular hair in all parts of the plant, which is easy to distinguish.

References:

Baidu Encyclopedia Mao Dujuan