Laser range sensors combine the advantages of a visible red sensing beam with the increased range of a laser. The optical distance sensor devices are Class 2 lasers, support Class 1 customized. The high precision autonics distance sensor is successfully be used to connect to Arduino, Raspberry Pi, with +-1mm to 3mm high accuray, and long-range solutions (max up to 150m) for your application. High Precision Distance Sensor Precision Distance Sensor,Precision Laser Distance Sensor ,Precision Distance Sensor Laser,Accurate Laser Distance Sensor Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancemeter.com
Timely control of wheat aphids
This year, the wheat planting area in our district reached 17,000 mu. Due to the low temperature in early spring, the normal growth of wheat is affected. The proportion of second and third types of wheat is relatively large, the growth period is delayed, and the first day is the same as last year. Since May, the temperature has risen rapidly, rainfall has decreased, and the population density has grown rapidly. According to my investigation on May 16th, the locusts have begun to transfer to the upper part, and the number of plagues in the 100 strains is 700-1000 heads, and the locust strain rate is 80%, and the panicle rate is 40%. As the temperature continues to rise, the population density will continue to grow. We hope that the towns will do a good job in the prevention and control of wheat aphids in time to ensure a good harvest of the summer crops in our district. Control methods: 1, 10% imidacloprid WP 20--30 g / acre + 80% dichlorvos EC 50ml / acre watering spray 2, 50% anti-infusion Wei WP 20 grams per acre watered spray. 3, 25% fast kill Ling EC 40-45ml/mu, watered spray. 4, 3% edimidine EC 2500 ~ 3000 times liquid spray. 5, 25% cyanol EC 80--100ml / mu watered spray.