Customrized Lewin brand medical pendants;
The Surgical Pendant has been fully validated, quality can be tested by using;
Lewin Medical Pendant provides ideal and high performance work environment for medical staff;
At the same time, Our hospital use pendant aim is to make patient comfort;
The medical pendant can be customrized to meet the different needs and for future upgrades;
Can choose column, single arm, double arms;
can choose column or head type;
Flexible choice to increase gas outlet, power socket, quantity of data port and type;
Single Arm Manual Medical Pendant Manual Cavascope Pendant,Manual Surgical Pendant,Manual Ceiling Pendant,Surgical Steel Pendant Shandong Lewin Medical Equipment Co., Ltd. , http://www.operatinglight.nl
It is very important for corn to increase production and prevent ploughing.
Corn cultivating sunflower mealworms were first discovered in Zhaoxian and Mancheng in Hebei Province in the late 1980s. With the increase of mechanized farming, the worms have generally occurred in Hebei Province and have become major pests restricting the yield increase of corn. Because the worms were endangered early in the roots, they were not easily detected. In particular, most peasants did not recognize the worms, which led to an increase in damage and serious damage. Identification of hazards: The worms occurred in 3 generations a year, with the second-generation hazards predominant. They occurred from mid-June to early August, and were mainly harmful to summer-seeded corn seedlings. At the end of June, after the emergence of summer corn, the eggs began to hatch as nymphs, and then migrated to the roots of the main stubble of the summer maize and leaf sheaths near the ground to carry out hazards. The stems and leaves of the damaged plants were yellow, the lower leaves were dry, weak and weak, and the yield was reduced. In severe cases, the rhizomes became thicker and the whole plant withered and died. Because the nymph colonies feed on the roots, there are many small black spots in the roots, which are swollen, and the root tips are black and rot. Identification of adult morphological characteristics: female adult body length 3 ~ 4.21mm, width 1.4 ~ 2.1mm, long oval and slightly flat, both sides of the edge is approximately parallel, reddish brown, covered with white wax powder. Male adults have a body length of 1.42mm and a width of 0.27mm. They have a weak body and are dark brown in color. Prevention proposals: The second generation is the key generation of prevention and control among the three generations that have occurred. In view of the strong resistance of the eggs to the harsh environment of the outside world, female adults and 2nd instar nymphs are protected by wax powder and have strong resistance. Therefore, the best period of control is the active larval stage. Except for measures such as crop rotation, ploughing and hoeing, and weeding and weeding, only the implementation of chemical control can control its damage. The main method is to use the agent for irrigation and root control. It is recommended that the second generation of 1st instar larvae be used for cultivating 1000 times solution of Kwai Fenfen, or use 500~1000 times of liquid ethyl 1605 solution for rooting control.