What issues should be considered when using pesticides?
Today's editor will explain the small knowledge of the floral clinic, what issues should be considered when using pesticides? The following is a detailed introduction:
When using pesticides for home gardening, the following should be noted:
(1) Preventing harm to flowers. To avoid phytotoxicity, the first thing to note is the concentration of the pesticide application. High concentrations of pesticides can easily cause damage to flowers, so strict control of the concentration is required, and it should not be too high. Secondly, different types of flowers, or the same variety at different stages of development, may have different reactions to pesticides. For example, Bordeaux mixture and other copper-containing fungicides are prone to cause damage to plants such as asparagus, peaches, plums, cherries, and pears; lime sulfur mixture can easily cause damage to peaches, plums, cherries, pears, grapes, and apricots; when used at high concentrations, chlorothalonil can also cause damage to peaches and plums; dimethoate can easily cause damage to plum blossoms, Japanese apricot, peaches, cherry blossoms, and crabapple; dichlorvos can also easily cause damage to azaleas, plum blossoms, and cherry blossoms; fenvalerate can sometimes cause damage to stocks and pomegranates.
For the same type of flower, generally speaking, seedlings, tender shoots, and tender leaves are prone to phytotoxicity. Most flowers are sensitive to pesticides during the flowering period, so pesticides should be used with caution. Thirdly, applying pesticides in the middle of the day when the temperature is high and the sun is strong can easily cause phytotoxicity, so during the summer, it is better to apply pesticides in the evening. Fourth, the pesticide solution should be prepared and used immediately. If prepared in advance and stored for a long time, it can easily precipitate or cause the active ingredients to decompose, which not only reduces the control effect but also can cause phytotoxicity.
(2) Preventing human poisoning. Most pesticides are toxic chemical substances. Although they are divided into highly toxic, moderately toxic, and low-toxic categories, they can cause varying degrees of toxicity to humans. Therefore, safety must be observed when using them to avoid poisoning. Before applying pesticides, it is necessary to understand the toxicity of various pesticides and the precautions for their use. It is best to wear rubber gloves when applying pesticides to prevent the chemicals from coming into contact with the skin. It is best to spray pesticides on a windless day outdoors. If there is a slight breeze, spray in the direction of the wind to prevent the pesticide solution from splashing on the face or the toxic gas from entering the body. After applying pesticides, immediately wash your hands with soap to be safe.
The above is a related explanation about what issues should be considered when using pesticides. I hope it brings a little help to your life!