First, the symptoms of the disease mainly damage the seedlings, saplings and branches. Lesions occur in wounds, bifurcations, and other sites. At the beginning of the disease, the lesions were flooded and the diseased area was dark gray. Afterwards, it lost its color and became lighter. The lesions are fusiform, nearly round, elliptical or irregularly rectangular and of varying diameters. Lesions are often linked together, the cortex is necrotic, and the sapwood turns brown. The bark of the late lesion often cracks. When the lesion wraps around a branch or tree trunk, the upper part of the lesion will die. Second, the pathogenic and pathogenetic rules of the disease of the great spot ulcers with hyphae and conidia in the bark winter, winter hyphae formed conidia in the following year from April to May, conidia by wind, rain, insects and man-made Activities spread. The germs invade mainly through wounds and natural pores. The disease began in the middle and early March of the following year. In the middle and late April, it was the epidemic period. In late May, the disease developed stagnation and the fall did not develop. Different tree species have different resistance to P. fuliginea. All factors that cause the thinning of the tree and the decline in resistance are conducive to the occurrence of disease. III. Methods for prevention and cure 1. Establish a nursery in a disease-free zone, cultivate strong seedlings, strengthen quarantine, and ensure good seedling quality. Disable serious planting of seedlings after afforestation or planting after cutting. 2. To breed disease-resistant tree species, select tree species suitable for local site conditions and weather conditions, and develop their own disease resistance. 3. To minimize the loss of seedlings in the afforestation process, with the seedlings planted, less root damage, and avoid long-distance transportation. In recent years, various high-tech traffic safety facilities and products have been favored by the industry in the highway safety protection projects implemented by the country. The wide application of these traffic safety facilities and products has played an important role in improving road safety and reducing traffic accidents. In various traffic safety facilities or products, solar road studs can clearly outline the outline and edges of the road in rain, fog and road bends, so as to induce the driver's line of sight, thereby eliminating road safety hazards. Solar road studs can play a very important role in delineating road contours in rainy and foggy weather and at corners, inducing the driver's sight and eliminating potential safety hazards.
During the day, solar panels absorb sunlight and convert solar energy into electrical energy, which is stored in energy storage devices (batteries or capacitors). At night, the electrical energy in the energy storage devices is automatically converted into light energy (controlled by photoelectric switches) and emitted by LEDs Bright light draws the outline of the road and induces the driver's sight. Solar Road Stud lights are a kind of protruding road signs, which are installed outside the yellow line on both sides of the road or at the ramp junction, used to outline the road, remind drivers to drive, and reduce accidents. This product uses monocrystalline silicon solar panels to charge high temperature resistant Ni-MH batteries without external power supply. The light-emitting unit uses high-quality, high-brightness LEDs from Taiwan Epistar chips. The product has a long service life, easy installation, environmental protection, stable performance, pressure resistance of more than 20 tons, and a fully charged battery that can work continuously for more than 200 hours, which is equivalent to 18 days in rainy days.
Road studs are suitable for installation on: roads with more than four lanes back and forth, but there is no separation zone in the middle and insufficient light at night; vehicle diversion points (around the triangular ground line); intersections/zebra crossings (deceleration prompt); railway ramps; sharp turns ; Toll station lane line; foggy areas (seaside, airport roads); accident-prone areas; highways and roads without street lights; urban sidewalks, park paths, etc., areas and road surfaces that need to beautify the night scene; guidance at elevated and tunnel entrances and exits Line position. Mainly play a warning role. Solar Road Stud,Led Road Stud,Aluminum Road Stud,Solar Led Road Stud Shenzhen Wide Way Optoelectronics Co., Ltd. , https://www.wdmtrafficlight.com
Conventional products solar traffic series products solar road stud lights, PC solar road studs, cast aluminum solar road studs, all incoming materials are strictly inspected and stored. Ensure that the products shipped from the factory are 100% qualified.