2013年8月26日星期一

Avoid the use of pesticides seven

1 hanged well water dispensing. Well water contains more calcium, magnesium and other minerals, which react with the liquid easily precipitate, thus reducing the efficacy.

2 hanged sewage dispensing. Sewage containing impurities, after dispensing spray nozzle clog liquid sprayer, while also undermine the stability of the liquid, reduce the efficacy.

3 days temperatures rain avoid spraying. Windy spraying pesticides will drift; rain spraying, liquid rain washed easily reduced efficacy; temperatures spraying, prone to injury and poisoning. Therefore, the best time of application lies in: 8:00 to 11:00, 16:00 to 6:00. Weather permitting, the breeze when spraying.

4 avoid indiscriminate use of pesticides. Should be based on crop type, control objects and agents using the corresponding properties of different pesticides, so that the right medicine, and contraindications blindly increase the amount of pesticide, resulting in increased resistance to pests and reduce the control effect, but also prone to injury.

5, avoid spraying flowering. Spraying of crops and fruit trees in bloom, prone to injury.

6, avoid preharvest manual sprayer spraying. Since pesticide residues in crops to produce, if preharvest spraying, drug residues easily lead poisoning after eating people.

7, avoid a medicine used in conjunction. Long-term use of one or formulations of pesticides, easy to make pest control effect and reduce resistance and therefore should alternate medication.

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