Shed vegetables winter and spring skill against gray mold

Leek mold, also known as white spot disease, is a common disease that occurs in winter and spring. The disease usually occurs at the beginning of December every year. It mainly occurs on the leaves. White spots appear on the surface of the leaves at the beginning of the infusion. The face is more than the back, and it develops from the tips of the leaves. The lesions in the later stages mingling with each other and forming large pieces. Leaves or whole leaves dry coke. Sometimes diseased leaves do not produce white spots, rot down from the harvesting blade, and are initially immersed in water, followed by light green, brown rims, lesions are mostly semicircular to the "V" shape, can extend down 2 ~ 3 cm, diseased leaves yellow brown, humidity, gray-brown or gray-green villous layer. Its prevention and control methods are:
1, choose resistant varieties. Such as yellow seedlings, Ke mold 1, Zhongwan No. 2, snowballs and so on.
2, dehumidification. The use of non-drip film, timely release, cooling, reduce indoor humidity, prevent the temperature inside the shed too high.
3, timely removal of diseased leaves. Buried or burned.
4, pharmaceutical control. In the early stage of disease, 50% carbendazim WP may be sprayed with 500 times, or 50% fast keratin 1500 times, or 70% thiophanate-methyl 800 times, or 50% TD WP 1000 times. Liquid, or 50% acetaminophen wettable powder 1500 times, 40 to 50 kg per 667 square meters of liquid, spray once every 5 to 7 days, and even spray 2 or 3 times. Note alternate medication. In case of cloudy days, it is best to use Chlorothalonil or Sulfonamide as a smoke suppressant.

Micro Laser Distance Sensor

New product of U85 micro laser distance sensors use highly focused class 2 laser to detect objects or measure distances, and can return a measured value via varieties intface( serial, usb, rs232, rs485, bluetooth etc.). The electronic distance sensor is a very small Laser Distance Sensor, but high resolution up to 1mm and long distance measuring sensor - teachable measuring range of up to 30m. Extremely accurate distance sensing sensors, errors down to ± 1mm. And the mini sensors and measurements support continuous measurement function, great for compact solutions(eg: robots) with the smallest Laser Distance Sensor of the world!

Parameters of U85:

Accuracy	±1 mm (0.04 inch)
Measuring Unit	mm
Measuring Range (without Reflection)	0.03-20m/0.03-30m
Measuring Time	0.1~3 seconds
Laser Class	Class II
Laser Type	620nm-690nm, <1mW
Size	41*17*7mm (±1 mm)
Weight	About 4g
Voltage	DC2.0~3.3V
Electrical Level	TTL/CMOS
Certifications	CE, FCC, RoHS, FDA
Operating Temperature	0-40 ℃ (32-104 ℉ )
Storage Temperature	-25~60 ℃ (-13~140 ℉)

Mini Laser Distance Sensor,Optical Laser Distance Sensor,Smallest Laser Range Sonsor,Laser Measuring Sensor

Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancemodule.com