Symptoms of Melon Downy Mildew and Its Control Methods

1, symptoms

The main damage leaves, diseased leaves spread from the bottom up. In the early stage, there was a pale yellow dot on the leaf, and the edge was not obvious. After being limited by the veins, it expanded into a polygonal lesion. When the humidity was high, the back of the lesion grew a grayish-black or off-white mildew layer, and the leaves of the whole plant were yellow withered when severe.

2. Methods of pharmaceutical control

At the beginning of the onset, 58% of nail cream is used. Manganese zinc wettable powder 500 times liquid is sprayed on the back of the leaves or closed in the evening. 45% of chlorothalonil aerosol 200-250 grams per acre is smoked or 5% per acre. Bacteria clear dust or 5% cream urea. Manganese zinc dust 1000 grams sprinkled.

Industrial Laser Distance Sensor

Industrial Laser Distance Sensor, we also call it secondary development laser distance module, which support TTL level and CMOS. The laser range sensor can be widely used in professional surveying, mapping, construction, robots, hunting arrows, industrial monitoring and automated measurement applications in electricity, transportation, etc. Our laser distance module supports data communication with RS232, USB with a simple adapter. The results of laser distance sensor can be evaluated with Arduino. We are always looking ahead, hoping we can make every measurement simple in life!

Parameters of M703A:

Laser Distance RS232,Arduino Distance Module,Laser Module RS232

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