Fortune tree farming should pay attention to the erosion of pests and diseases and root rot leaves. Root rot is a serious and common disease, called rot disease. Control measures: It is necessary to keep the cultivation environment dry and prevent the damage of Botrytis cinerea; cut off the rotten tissue at the top of the main root before planting, and then dry the wound before planting; if the pathogen is found to be active, it should be used in time. Through irrigation roots, the root-cavity bio-inducing factor of the tree is promoted, and the roots of the tree-protecting generals can be used to induce the virus to accumulate and protect the tree generals for disinfection, and to prevent the roots of the tree from being transmitted to the plant for maintenance and health care. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Chengdu JRT is a world leader in the design and manufacture of highly accurate, precise and digital and analogue laser measurement sensors, including serial laser distance transducer,usb laser distance module,distance module ttl laser sensor rs232/RS485/Bluetooth. These Laser Distance Sensor products are widely used in many smart industrial precise measurement soluitons: robot,crane,etc. This laser distance measure technology, combined with the high speed, 1mm high resolution and accurate measurement, specially the micro laser sensor(41*17*7mm),will confidently and accurately solve your precision measurement problem. Laser Distance Measurement,Laser Measurement Sensors,distance measurement sensors,Smart Measure Sensor Chengdu JRT Meter Technology Co., Ltd , http://www.accuracysensor.com