In the blink of an eye, August is nearing the end, in a few days will enter September, in order to facilitate the next step of maintenance work, today here Xiaobian summarized the technical points of the maintenance work in September, I hope to help you!
After entering September, the most obvious feature is that the temperature begins to gradually drop, the day is warm and the night is cool, during this period the garden plants begin to enter the autumn growth period, and begin to store nutrients to prepare for safe wintering, so the water and fertilizer management work in this period is very important. In addition, after entering September, it is also the peak period for the occurrence and harm of diseases and pests in autumn, and the prevention and control of pests and diseases in this period is also particularly important. Specific conservation management work can be carried out from the following aspects:
1. Daily management.
1. Water and fertilizer management
(1) Watering
After entering September, although the temperature has dropped slightly, it is warm and cool on the whole, and the daytime sunshine is also very sufficient, and the evaporation is very large, so this period should be reasonably arranged according to the natural rainfall.
For example, cold-season lawns are watered at least once a week to prolong the green period; flowers, shrubs, grasses and flowers should also be timely and reasonably arranged to irrigate to solve the drought caused by increased evaporation.
(2) Fertilization
Plants in the year has experienced germination, branching, flowering, fruit and other growth processes, these growth processes consume a lot of nutrients from garden plants, so in the autumn needs reasonable fertilization to help plants recover growth and reserve nutrients to prepare for safe overwintering, which is also "light application of spring fertilizer, skillful application of summer fertilizer, heavy application of autumn fertilizer", the origin of this sentence.
In the application of autumn fertilizer should not be excessively applied nitrogen fertilizer, so as not to cause plant growth, increase the possibility of frost damage in winter; in the application of autumn fertilizer should be phosphorus and potassium fertilizer (three 15% compound fertilizer or garden special fertilizer) as the mainstay, enhance the resistance of plants, you can also apply organic fertilizer appropriately, which will be more conducive to the overwintering of plants.
2. Plastic trimming
Plastic pruning is very important at any stage of the growth of garden plants, reasonable pruning can not only improve the landscape effect of garden plants, but also play a role in balancing nutrition and regulating growth. The pruning work in September mainly includes the following three aspects:
(1) Lawn mowing
After entering September, the cold season lawn enters the growth period, so the number of pruning times of the cold season lawn in this period is significantly increased than that in summer, but the pruning height is not too low when pruning, generally about 5 cm, to avoid affecting the photosynthesis of the lawn grass due to low pruning and then affecting the storage of wintering nutrients.
(2) Pruning of foliage plants
Hedge plants such as red-leaved heather, Kanemori Privet, purple-leaved barberry, etc., can be properly pruned in early September to promote the germination of autumn shoots, thereby improving the ornamental effect of autumn foliage plants.
(3) Green ribbon and shape trimming
After entering the autumn, most of the garden plants will germinate in autumn, and this stage should be trimmed according to the growth of the plant, keeping the color block flat and full of shape.
2. Pest control
After entering September, there are still many diseases and insect pests, and reasonable prevention and control is not only conducive to ensuring the healthy growth and safe wintering of garden plants in that year, but also conducive to reducing the number of overwintering pathogens and insect mouths, and playing a key role in promoting the prevention and control of diseases and insect pests in the coming year. The specific prevention and control work is as follows:
1. Pest control
(1) Leaf-eating pests
Leaf-eating pests that are still in harm in September mainly include lawn armyworms, grass borers, twill moths and broad-leaved plants such as stinging moths and apples
Palm boat moth, inchworm, etc. Control can be carried out with 12% beetlemonitrile or 20% thiamethoxazine perchlorofluoride.
(2) Sucking pest
The picture shows the pine aphid
Prickly pests such as pine aphids, aphids, reticulated bugs, thrips, wood lice, and leaf mites will continue to be harmful after entering September. Control can be carried out with thiazide and acetamiprid or 70% imidacloprid water dispersible granules.
(3) Dried moth pests
After entering September, dried moths such as tianniu, gidding insects and wood beetle moths have attracted another peak of harm.
During the control, the root can be buried with "70% imidacloprid water dispersible granules" to make the agent absorb directly through the root system to the pest site for long-lasting insecticide; you can also use 48% thiamethoxam to spray the trunk of garden plants with 10,000 times partner for rapid insecticide.
(4) Underground pests
As the temperature cools down, the underground pest grubs, ground tigers, and moths are harmed again, and when the control is carried out, you can choose to use "15% poison tick granules or poison xin granules" to directly apply to the soil near the lawn and the root of the tree, and water in time after sprinkling, so that the liquid is fully leached to the activity layer of the pest, so as to achieve the purpose of long-term prevention and control of underground pests.
2. Disease prevention and control
(1) Leaf diseases
In autumn, it is easy to occur anthrax, black spot disease, brown spot disease, leaf wilt, leaf spot disease, needle blight, powdery mildew, rust and other diseases.
The prevention and control of various types of leaf spot disease can be sprayed with benzoprexazole or valprazole ether bacteriolate;
For the prevention and treatment of powdery mildew and rust, you can choose pentazole or valbutazole ester for spray control.
(2) Branch disease
After entering September, the branch diseases such as glue disease and dry rot disease are again carried out in a high incidence period, and copper thirrhinate or spring thunder king copper can be sprayed for prevention and control at the beginning of the hazard, and in the later stage of the hazard, the disease needs to be scraped off with a knife, and then smeared for prevention and control.
(3) Root diseases
The picture shows the rotten root system
After the sweltering heat and rain in summer, the soil permeability becomes poor after the water accumulation of plant roots, which is easy to cause root and root rot, and the rehabilitation of diseased roots in autumn is particularly important for the rapid recovery of garden plants and the storage of nutrients.
It can be combined with watering to water the fungicide "Oxymycerin" and the rooting agent "5% indole naphthaleneacetic acid or garden rooting agent" in the garden roots to achieve the purpose of antiseptic and rooting.
Third, the trunk is white (mainly for the northeast region)
After entering the autumn, the whitening of the trunk is one of the key tasks of garden maintenance, and the timely and reasonable whitening of the trunk can not only play a role in beautifying the environment, but also prevent frost cracking, anti-burning, anti-pumping, anti-pest, and ensure the safety of trees overwintering.
Generally speaking, whitening work needs to be carried out in mid-October in the autumn, while for the colder northeast region, whitening work often begins in September.
When whitening, you can choose a garden whitening agent or a stone sulfur compound, which is a weak alkaline whitening agent, which not only has strong adhesion, rain resistance, good air permeability, and also has a good sterilization and insect repellent effect.
Well, about the garden maintenance and management work in September, I will briefly share it with you here today.