Chemical dressing control for underground pests

Chemical dressing control of underground pests Underground pests are “long-term households” of farmland, with many types, miscellaneous foods and long-term hazards. This kind of pests are hidden in the ground for a long time, and migrate up and down with the seasons, and form a hazard peak in the spring and autumn temperatures. The conventional control methods are difficult to be effective, and pesticide dressing is one of the most effective methods.
The method of using winter wheat and winter rapeseed for seed dressing and seed dressing is the same as the method for controlling wheat red dwarf disease. Option 3941, phorate, phoxim, etc., the amount of seed dressing is 0.1% to 0.3% of the weight of the seed. Specifically, 60% phorate, 40% methyl isoflavin is 0.2%, 50% phoxim is 0.1%, and 20% methyl isoflavin emulsifiable concentrate is 0.3%. Dissolve the agent with about 3 kg of water, then spray evenly on the seeds, mix well, and dry until half dry.
It should be specially pointed out that the use of highly toxic and highly toxic pesticides should be completely banned in the intercropping of grain and vegetables, or on the ground where the crops are replanted after harvest. When the above-mentioned places are used for seed dressing to eliminate underground pests, it is necessary to use low-toxic avermectin preparations and their mixtures. The avermectin seed dressing has the advantages of wide insecticidal spectrum, long-lasting effect, high safety to crops and various animals, birds and natural enemies, and good effects on underground pests such as nematodes which are difficult to control by other pesticides. Worth promoting. The method of use is the same as above, and the dosage is generally 1.8% worm, and the seed dressing is 0.01% to 0.1% by weight of the seed. This method can also be used for seed dressing of vegetable crops.

Digital PH Sensor

The pH sensor, also known as the pH probe, consists of two parts: a glass electrode and a reference electrode. Since the pH value is related to temperature, it is usually necessary to add a temperature electrode for temperature compensation. The difference between the digital pH sensor developed and produced by Daruifuno and the Analog PH Sensor is the output mode of the signal. The simulated pH electrode itself cannot output a signal and needs to be connected to a transmitter to read the data. The digital pH electrode has a built-in RS485 interface and supports the Modbus protocol, which is convenient for networking and integration. The digital sensor realizes the functions of electrode signal detection, temperature monitoring, automatic temperature compensation and digital signal conversion, plug and play.

The protection level of the digital pH electrode is IP68, and it can work continuously under water for a long time. High measurement accuracy, built-in temperature sensor, real-time temperature compensation. We have stainless steel shells and PPS shells, both of which are split, easy to install and remove. This digital pH sensor is suitable for a variety of working conditions and is widely used in industrial production processes, sewage, tap water, surface water monitoring and other industries. We have matching digital pH controllers and multi-parameter controllers.

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Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com