In summer, the temperature is high, the rain is high, and the humidity is high. Downy mildew is a major disease that is harmful to lettuce. It is necessary to pay attention to timely prevention and treatment.
First, the symptoms
The disease mainly affects the leaves of lettuce, which spreads upward from the lower leaves of the plants, and the leaves initially have pale yellow near-circular or polygonal lesions. When it is wet, white mold grows on the lesions on the back of the leaves. Sometimes the white mold spreads to the front of the leaves. In the later stage, the lesions turn to yellowish brown and form a piece, causing the whole leaves to dry up.
Second, prevention measures
1. Agricultural measures. Reasonably close planting, pay attention to drainage and reduce the humidity in the field. Carry out 2 to 3 years of rotation, pay attention to timely clearing the garden after harvest, and clear the diseased leaves and diseased plants out of the shed.
2. Chemical control. 25% metalaxyl WP 800 times solution, or 72.2% Plex water 600 times solution, or 90% fox cream WP 500 times solution, or 58% arsenic manganese Zn WP 500 times solution , or 72% ke WP 700 times solution, or 72% sturdy WP 800 times solution, or 72.2% Frost mold water 600 times solution, or 56% Phytophthora WP 700 times solution, Spray once every 7 days and continuously control 3 to 4 times. In order to prevent drug resistance, the above pesticides can be used interchangeably.
Shelf lighting is a lighting solution specifically designed for commercial and retail environments. Its goal is to highlight and display the goods on the shelves by providing appropriate lighting to attract customer's attention and increase sales.
The classification and layout of shelf lighting can be selected according to different needs and scenarios. LED lamps are the most commonly used shelf lighting technology and are favored for their high efficiency, long life, and dimmable characteristics. Overhead lights and strip lights are common installation locations and can be selected according to the needs of the appropriate way to provide overall or local lighting.
In terms of lighting layout, uniform lighting, and directional lighting are common choices. Uniform lighting ensures consistent lighting intensity for merchandise by providing a balanced distribution of light across the entire shelf. Directional lighting uses lamps such as spotlights or downlights to focus light on specific goods or display areas to highlight their characteristics.
Lighting control is also an important consideration. The dimmable lighting system can adjust the lighting brightness as needed to adapt to different environments and product display needs. Smart lighting systems automatically adjust lighting intensity and color through factors such as sensors, timers, or external conditions, providing greater flexibility and energy efficiency.
Through the appropriate shelf lighting program, businesses can create a pleasant shopping environment, highlight product characteristics, attract customers' attention, and improve sales performance. Shelf lighting plays an important role in modern retail, providing businesses with a means to promote products effectively.
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