Some considerations for pesticide greenhouse application

1, timely medication

According to the law of occurrence of pests and diseases , find out the weak links and use them in time. If the vegetables are sown or planted, the soil should be disinfected or mixed with pesticides. It is necessary to take early defense as the main control and spread it into disaster.

2, the right medicine

According to the control object, the right medicine, such as anti-caries or can only kill aphids, can not kill cabbage caterpillars. Trichostatin only kills rust and powdery mildew and cannot eliminate downy mildew.

3, alternating medication

Reasonable rotation or mixed use of different kinds of pesticides can not only prevent the resistance of pests and diseases, but also cure diseases and insect pests, save time and save medicine and prevent high efficiency, such as killing and mixing a net.

4, see the day medication

The greenhouse should not be used on cloudy days. Spray liquid should be sprayed on sunny days and should be properly ventilated to reduce air humidity.

5, change the way of medication

The greenhouse method uses smoke and dust as much as possible to reduce the humidity in the greenhouse. The smoke method is generally ignited with 10% or 40% chlorothalonil smoke tablets. The dust method uses 10% chlorothalonil complex powder to spray the effect when the morning dew is not dry or the dew condensation is in the evening.

6, safe medication

It is necessary to strictly implement the standard dosage and concentration of pesticides safely. Do not use highly toxic and high-residue pesticides, such as 3911, methamidophos, etc., should use high-efficiency, low-toxicity, low-residue pesticides or biological pesticides such as enemy killing, anti-Suiwei, Tianweishi, etc. Such as agricultural anti-120, streptomycin, etc., in order to prevent human and animal poisoning.

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