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Operating Methods Of Fungicides
Nov 22, 2018

Rational concentration

It is necessary to dilute water before spraying, whether it is water or wettable powder. Different concentrations of fungicides are required, so it is necessary to match them strictly according to the instructions. Reasonable concentration of fungicides is more conducive to the effectiveness of fungicides. If the ratio is arbitrary, too high concentration will cause crop pesticide damage; too low concentration can not meet the control requirements.

Suitable spraying time

The time of spraying fungicides is directly related to the control effect. Early spraying will cause waste of fungicides and reduce the control effect. Late pathogens have caused harm to crops. Therefore, it is necessary to use drugs in time according to the occurrence regularity, forecast and specific situation of different diseases. Generally speaking, the medication time of fungicides can be chosen before the onset or at the beginning of the onset.

Improving the quality of medication

The quality of fungicides used includes the quantity, frequency and quality of spraying. The quantity of medication should be appropriate, too much medication will increase the cost and cause harm, too little can not achieve the prevention and control effect, so according to the specific situation increase or decrease. The number of doses depends on the residual period and weather conditions. Generally, they are sprayed every 10-15 days, 2-3 times. If it rains after spraying, it needs to be sprayed again. The methods to improve the quality of medication are spraying the spray uniformly and densely throughout the stems and leaves of plants.

Strictly prevent pesticide damage

There are many reasons for the pesticide damage caused by fungicides. The pesticides themselves, the different sensitivity of crops, the growing stage of crops and climatic conditions will have an impact on them. Generally speaking, water-soluble drugs and crops in the seedling stage and booting and flowering stage, high temperature, drought, fog, high humidity and other circumstances have a greater chance of causing pesticide damage, therefore, need to be handled carefully.