Since the beginning of autumn, the temperature has gradually fallen, the temperature difference between day and night has increased, and the fruits have begun to accumulate sugar. Especially affected by recent typhoons and heavy rains, garden plants stopped their summer dormancy period and began to enter the second peak period of autumn growth. Disease and insect damage also entered the peak period. Leaf-eating pests hatched into larvae, feed on leaves and turned into cocoons Overwintering. At present, we must take precautions in advance, and do a good job in pest control and maintenance management during this period to ensure the normal growth of plants.
First, scientifically manage the soil. Plant growth is closely related to soil, and various methods must be used to improve soil fertility and provide a good environment for plant growth. Loosening the soil and weeding is a necessary step in soil management. Loosening the surface soil can reduce the evaporation of water in the soil, improve the aeration of the soil, make the organic matter decompose and transform faster, improve the nutrients in the soil, and allow the roots of plants to grow better. In addition, weeds will compete with plants for water, gas, fertilizer, and heat, which can be unsightly for landscape gardens, so weeds must be removed frequently. Soil loosening and weeding can be carried out at the same time, and the frequency of weeding should be multiple times a year, depending on the situation.
Secondly, fertilize reasonably. Fertilization is an important part of conservation and management, and reasonable fertilization can accelerate forest growth. First of all, pay attention to the fertilization time. The base fertilizer is generally applied in autumn. Autumn is a peak period for the growth of forest roots. Fertilization can promote the rapid growth and tillering of roots, strengthen the tree body and help plants survive the winter. The time should be determined according to the specific area and plant species, and cannot be generalized.
Again, regular irrigation and drainage. Irrigation and drainage must be carried out regularly to keep the water in the plant in balance and ensure its normal growth. The irrigation method of a single garden plant is to use the backbone of the tree as the center of the circle. It is located in the pan for irrigation and maintenance. Generally, the depth of the pan can be controlled between 15 and 30 cm. After watering and curing, the soil should be loosened in the pan and the enclosure The ridge is leveled. Drainage is to prevent excessive water from causing hypoxia hazards to plants. After heavy rains, water in the garden should be drained in time.
Finally, increase pest control. Enhancing the ability of landscaping plant communities to resist pests and diseases is the focus of current landscaping project maintenance. In the actual landscaping management, physical prevention, biological control, and chemical prevention are optimized to achieve the perfect spatial combination of ground cover plant communities, shrubs, and trees, and increase the greening level of landscaping, and the diversity of plant populations and species The ability to restrict each other, reduce the single species caused by the occurrence of pests and diseases, and the damage will increase. As the night temperature dropped, some pests began to fly to the host crops to prepare for the winter.
Control measures: First, artificially pick the cocoons or break the cocoons on the tree trunks to reduce the source of insects. Secondly, when the larvae are clustered for damage, remove the insect leaves, manually kill the larvae, and pay attention to the larvae venomous hairs when hunting. Third, the larvae should use biological pesticides before the third instar, for example, 500-700 times liquid of Bt wettable powder with a content of 16000IU/mg can be applied. Combine chemical control on this basis. Young larvae can use 25% diflubenzuron suspension 1500-2000 times liquid, or 25% diflubenzuron suspension 2000-3000 times liquid, or 20% Miman suspension 1500-2000 times liquid and other bionic pesticides. Larvae occur in a large area, and you can spray 20% Sumethadin 2000-3000 times liquid, 50% Phoxim EC 1000-1500 times liquid, 1.2% bitter smoke EC 800-1000 times liquid and other pesticides. Finally, protect the natural enemies, such as the thorn moth, purple bee, praying mantis, and bugs.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
Extremity Drape,Sterile Extremity Drape,Surgical Extremity Drape,Disposable Extremity Drape
Xinxiang Huaxi Sanitary Materials Co., Ltd. , https://www.huaximedical.com