The pruning method of Populus tomentosa balls is introduced in detail.

Trimming the shaped Euonymus will undoubtedly increase its own beauty and appreciation value, but also more flexible and various garden trees to match, so pruning Euonymus is an essential part of planting Euonymus.

Steps for pruning the Euonymus Japonica ball

1, determine the amount of pruning: the need to prune Euonymus first to observe, from different angles to observe the backbone branches, large and medium-sized branches of the growth status, first determine the large and medium-sized branches to stay and pruning degree, estimate the implementation of pruning. When the predicted pruning amount is too large, seasonal pruning method should be adopted.

2. Judge the growth of Euonymus Japonica: carefully observe the growth potential, growth amount, position and distribution of flower buds around the Euonymus Japonica, and determine the corresponding pruning principle by removing the top of Euonymus Japonica.

3, according to the order of operation: any shape of Euonymus ball should first deal with the big branches, middle branches, and then trim the twigs; first thinning the branches, then cutting short; first trimming the inner bore and then trimming the periphery; first trimming the upper part and then trimming the lower part. Specific methods are:

① Cut out a leveling strip according to the diameter. Be careful not to cut too deep at the beginning and trim further if necessary.

② Turn the trimmer over and trim the curve on the plant with the opposite side of the trimmer.

Trim the top of the plant to determine the upper curve of the sphere.

4. The pruning knife faces down and turns it over again so that it faces the plant.

Cut off excess branches and leaves at the top and middle of the plant.

6 Following the shape of the upper part of the plant, trim the branches and leaves of the lower part of the plant to the ground. Sweep off the pruned branches and leaves with each hand.

Circle the boxwood ball, examine the trimmed sphere back and forth, and step back a few steps to see if the sphere is symmetrical. If there are gaps in the surface of the sphere during pruning, especially in the upper part, they can be filled after new branches grow out.

Cut them one or two more times in the summer of the following year, in the middle or late summer.

4. Correction and supplement: After all pruning is completed, observe around the box, and make necessary supplements and corrections to the missing and unbalanced parts.

5. Clean up the site: remove the pruned branches and dead leaves in time. Several kinds of discarded branches and leaves are transported out and disposed of in time. Sick plants should be pruned last. If diseased branches have been pruned, all tools should be disinfected to avoid infection.

Prevention and control of diseases and insect pests of Euonymus chinensis

Euonymus dahuricus has strong resistance, even in extensive management areas, diseases and insect pests rarely occur, common pests are aphids, scale insects and so on.

Among them, Japanese turtle wax is more difficult to control. After the insect is found, it can be manually scraped off. It is very effective to spray leaves and trunks from nymph hatching to scale formation. Commonly used pesticides include rapid killing or killing.

Common diseases are powdery mildew, coal pollution disease, leaf spot disease, stem rot disease, anthracnose and so on. Annual shoots are susceptible to powdery mildew when they are undernourished and wet. Extensive management area, little disease prevention and pruning disinfection areas prone to leaf spot, anthracnose and stem rot. Coal pollution often occurs when there are piercing-sucking pests. Broad-spectrum fungicides such as chlorothalonil, carbendazim and thiophanate-methyl can be used to control the disease by spraying two or three times, with an interval of 7 to 10 days. If the disease is serious, the interval can be shortened appropriately and sprayed once every four or five days.

In addition, the speed of new shoots of Euonymus is extremely fast, so pay attention to pruning once a year to maintain the tree shape. Then timely pest prevention, it can improve its survival rate.