Sowing and Seedling raising techniques of Silk Tree and its Price reference

Silk cotton tree is silk cotton, which is a typical flowering tree species, which can effectively improve its beauty in landscape design.

Sowing and Seedling-raising techniques of Silk Tree

Seed collection: silk cotton blossoms in May and fruit ripens in October. The seeds can be collected in the middle and late October, and the strong mother trees with fast growth, early fruit, good quality and no diseases and insect pests are selected and spread in the sun after harvest. After the pericarp is cracked, the seeds are collected and dried in a cool and dry place. Seed collection should not be too late, too late seed coat cracking, seed shedding, not easy to harvest.

Sowing method: the general sowing time is from mid-late March to early April, and it is better to sow early at the right time. Weeds breed quickly in the evening, and it is easy to "grass eat seedlings", which makes it difficult to manage at seedling stage. Generally, strip sowing is used and ploughing is used to open ditches with a depth of 3 to 5 meters and a row width of 20 to 25 meters. Spread the seeds evenly into the ditch, cover the soil with a thickness of about 1 meter, and press it properly after covering the soil. Seedlings emerge in about 20 days under suitable soil moisture conditions. The general routine dosage is about 10 kg per 667 square meters. The sowing rate is closely related to seed cleanliness and germination rate. The purity is high, the germination rate is high, the sowing rate is small; on the contrary, the sowing rate is large.

Seedling raising method: using flat bed to raise seedlings, turning the soil deeply at the end of autumn, applying 6000 to 8000 kg of organic fertilizer per hectare during soil preparation, raking and leveling in the next spring, making a 1-meter-wide border, and then watering once. After water infiltration, rake and rake fine when the soil moisture is suitable.

Control methods of Venus inchworm

Harm: silk tree Venus inchworm adult length of about 13 mm, wingspan about 38 mm. The wings are white with light gray and yellowish brown markings. There are circular spots in the middle chamber of the forewings and dark yellow, brown and gray spots at the base of the wings. The egg is oval with a reticulate surface. The mature larva is about 33 mm long and black. The newly hatched larvae are black and clustered, and the fine lines on the back can be seen only after molting. The food intake increases after the 3rd instar, and the leaves are often eaten away. The damage period of larvae occurred from late May to mid-early June, July and August to September, which could be delayed until October.

Prevention and control methods:

(1) hunting and killing adults. The flying ability of adults is not strong, and it can be caught manually by trapping nets: black light can also be used to trap and kill.

(2) weeding and killing eggs. Strengthen weed removal in parks, courtyards and green spaces in order to eliminate egg masses and reduce insect sources.

(3) protect natural enemies. Such as chasing flies, mantis, wasps, assassin bugs, beneficial birds and so on.

(4) Pesticide control. In the event of major occurrence, it can be controlled with 0.5% vegetable and fruit net EC (azadirachtin) 1000 times, or 44% Chong Qing EC 1000 times, or 10000 times of 20% diflubenzuron 1, using diflubenzuron, larvae should be well used before the 3rd instar.

The price of silk trees in 2015

Silk cotton wood (breast 4cm high 180cm) 75 yuan per tree

Silk cotton wood (breast 6cm) 150 yuan per tree

Silk cotton wood (breast 2cm) 8 yuan per tree

Silk cotton wood (breast 4cm) electric negotiation yuan / tree

Silk cotton wood (breast 6cm) 70 yuan per tree

Silk cotton wood (high 100cm 0.6cm) 0.40 yuan per tree

Silk cotton wood (breast 6cm high 400cm crown 300cm 6.5cm) 160yuan per tree

Silk cotton wood (high 100cm 1cm) 0.60 yuan per tree

Silk cotton wood (breast 15cm) 1000 yuan per tree

Silk cotton wood (breast 5cm) 95 yuan per tree

The price of silk tree is relatively low, so even if it is cultivated by individuals to decorate their own courtyard, it is affordable, so if you have friends who are interested in silk tree, you might as well try planting it.