Due to the large-scale application of chemical synthetic pesticides after the Second World War in agriculture, the advantages of agricultural spray oils were forgotten and placed in an unimportant position. The abuse of a broad spectrum of pesticides causes the emergence of resistance to insect pests, destroys ecological balance and increases the economic burden on farmers. This kind of behavior to obtain current benefits by destroying the ecological balance is not a sustainable pest control method. Phytoecologists in various countries now advocate the use of natural pesticides (agricultural spray oil), biogenic pesticides, and the use of natural enemies to replace synthetic broad-spectrum pesticides. Agricultural spray oil is a kind of hydrocarbon originating from nature. Take the SK product “Lv Ying†as an example, it has reached the purity that can be directly contacted with food, so it is very safe for humans and vertebrates, and there is no use for it. Safety interval. In the environment, microorganisms can be decomposed into water and carbon dioxide without damaging the ecological environment. Since its insecticidal mechanism is physical suffocation and behavioral change, pests do not develop resistance. Due to its low lethality against natural natural enemies, it does not stimulate the occurrence of other pests and is an ideal agent for comprehensive pest management. In foreign countries, this product has been approved for use in organic food production. Agricultural spray oils can be used alone to prevent acarids, pests and fungi. Experts believe that SK "Green Ying" can form an oil film on the insect body, close its pores and suffocate pests. At the same time, the oil film seals the insect pests, so that the pests cannot recognize the parasitic plants and achieve the repellent effect. The oil film left on the leaves after spraying can repel insects for spawning and feeding for up to 14 days to 30 days. For diseases, SK "Lycopene" suffocates pathogens mainly by interfering with the respiration of fungi. It also interferes with the attachment of pathogens to parasitic plants and inhibits spore germination and infection. SK "Green Ying" can also be used with a variety of pesticides to synergize. When used in combination, it can prevent the decomposition of pesticides, improve adhesion, enhance the penetration of the epidermis of pests, extend the residual period, and reduce the evaporation and fog drift. It must be noted that SK “Green Ying†is incompatible with some pesticides and is prone to phytotoxicity when used in combination; do not use any sulfur-containing agents as well as Bordeaux mixture, diazepam, captan, captaconazole, methoquinone, and insecticide. Mix with Keteite. In foreign countries, agricultural spray oil has been registered for use in citrus and other dozens of crops to control more than a dozen diseases and insect pests. In China, SK “Green Ying†has been registered for use on oranges and apples to prevent lice and scale insects. The use of this type of product is the same as other conventional EC pesticides. It is simple to use and usually requires the use of sufficient spray volume to ensure that all plant parts are thoroughly sprayed for maximum control. The interval between sprays depends on the population density of the pests. It is best to use it just before the damage occurs and the population density increases.
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