Punching and injecting medicines to prevent pupa pests is an effective and time-saving, time-saving, and cost-saving technique. It also effectively prevents the pests of the branches and leaves, has no pollution to the environment, and produces little phytotoxicity to the trees. Some scientific and technical personnel used this method for several consecutive years to control paulownia big bag moth in Heze, Shandong, and achieved good results. In the past two years, more than 400 strains of Weeping Willow and White Poplar damaged by Sang Tian Tian Niu have been controlled in Jinan City. The rate of pest control was above 95%, and good results were obtained. Specific prevention methods are as follows: Prevention time: accurate control of the prevention and treatment of time is the key to ensure the prevention and control effect. It is necessary to determine the prevention and control period according to the eclosion period and the egg period of the dry pests in each area. For example, in Shandong, Henan, Hebei, Liaoning, Tianjin, Beijing and other provinces and cities, the peak of the emergence period of the light shoulder stars and mulberry is in late July, the egg period is 10 days and 13 days respectively, so that the medicine control period is in late July. The initial and mid-term larval emergence time is the best period for prevention and treatment. If it does not rain, it can be controlled all day. 2. Pharmaceutics Preparation: Prepare a steel drill with a length of 30 to 40 cm, a diameter of 12 to 20 mm, a hammer, a 10 to 15 ml inhaler or a medical syringe. Preparation of drugs such as monocrotophos or imidacloprid or other systemic pesticides. 3. Punching injection method (1) Use a steel drill to drill a hole 3 to 4 cm deep into the xylem vertically at the base of the transverse root of the victim tree. Use 2 to 4 holes for each tree. Increase the number of holes for larger trees. (2) Inject different amounts of liquid medicine according to different diameter trees. Such as: diameter 10 to 15 cm, you can inject 5 to 7 ml of monocrotophos solution, 7 to 10 ml in diameter 11 to 20 cm, and 10 to 15 ml in diameter 21 to 30 cm. With other kinds of medicines, reference may be made to the amount of monocrotophos to be used as appropriate. After the injection, cover the hole with a leaf and press the soil. 4. Prevention times: twice a year, except once in late July, once again in the middle and late August. Through these two preventions and controls, it is possible to achieve the goal of no insects.
The blueberry is a flowering shrub that produces berries that are colored blue to purple, also known as blueberries.
It is strongly related to similar shrubs, such as those that produce cranberries and huckleberries.
Blueberries are small, around 5-16 millimeters (0.2-0.6 inches) in diameter, and have a flared crown at the end.
They are green in color at first, then change to blue-purple as they ripen.
Blue Berry
Blue Berry,Dried Blue Berry,Artificial Berry,Natural Blue Berry
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