Bordeaux mixture has a miraculous effect on potato control and grape anthracnose. So how do you know how to use Bordeaux mixture correctly? Do you know what you need to pay attention to when using Bordeaux mixture?
Bordeaux mixture is a traditional fungicide . It is non-toxic to humans and animals. It is a navy colloidal suspension with strong adhesion and rain-resistant scouring. It lasts for 15-20 days and is a good protective fungicide. It can be used to control cucumber downy mildew. When using it, avoid spraying on cloudy days or before dew is dry to avoid phytotoxicity.
If it rains after spraying, it needs to be refilled. It takes 7-10 days for the plants sprayed with the stone sulphur mixture to spray the Bordeaux mixture. Bordeaux mixture is a protective fungicide and does not work on bacteria that have invaded plants. It should be used before the onset of illness. After spraying, the sprayer should be cleaned in time to avoid corrosion.
Bordeaux mixture is prepared from copper sulphate, quicklime and water. It must be used now and cannot be stored. When preparing, choose white, light, blocky quicklime (or fresh slaked lime) and pure blue copper sulfate, without green or yellow
Green impurities. Different blending amounts should be used due to different crop and disease types. Iron containers cannot be used when preparing. The copper sulfate and the quicklime are separately placed in a container, each is dissolved in half of the water, the residue is filtered off, and then poured into the third container, and the mixture is stirred into a sky blue Bordeaux mixture.
The above is the use of Bordeaux liquid information, all in the pesticide network ()
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