The problem of pesticide residues in nectarine directly affects China's export trade and has received much attention in the industry in recent years. The researchers believe that there are four major countermeasures to reduce nectarine pesticide residues.
First, the development of pollution-free nectarines.
As a government behavior and market access standard proposed by the Ministry of Agriculture, pollution-free nectarine has been gradually promoted in China's vast peach area. From the point of view of pest control, the so-called pollution-free peach refers to the pesticide residue in nectarine products is lower than the standard of pollution-free peach in China by minimizing the amount of pesticides and optimizing the control technology. In the development of pollution-free production, the use of a variety of pyrethroid pesticides should be bifenthrin as the preferred variety, because it has a good control effect on the main pests of Taoyuan, can play a role in spraying and treating a variety of pests.
Second, comprehensive measures based on agricultural prevention and control
Actively guide the peach farmers to select seedlings without pests and diseases, select seedlings with strong disease resistance, and appropriately increase the application of organic fertilizers to improve the resistance of the peach trees to pests and diseases. Strengthen the management of peach tree plant protection and Taoyuan field, remove weeds and litter in the garden, and do not give pests a place for production and reproduction. At the same time, it is necessary to pruning and rationally adopting peach gardens to cut off the branches and diseased branches of the stalks, and rationally cultivate the soil to hinder the comprehensive agricultural control measures such as the emergence and emergence of overwintering insects.
Third, biological control technology.
Biological control has the characteristics of being non-toxic, harmless and not polluting the environment. For example, domestic research has used the biological control technology of predatory mites to control peach mites, and has achieved certain effects. In another example, Indian researchers have found that rust fungi from the tropics are natural enemies of peach orchards that control the number of weeds. Biological control technology generally does not produce drug resistance, can control the damage for a long time and has low cost. It is an important means to prevent and control peach tree pests and produce pollution-free nectarine.
Fourth, physical and mechanical control.
Physical and mechanical control is a method of controlling pests using various physical factors, labor or equipment, including the simplest artificial killing, destroying the normal physiological activities of pests, and changing environmental conditions so that pests cannot be accepted and tolerated. Physical and mechanical control can be used both to prevent pests and as an emergency measure when pests have already occurred.
First, the development of pollution-free nectarines.
As a government behavior and market access standard proposed by the Ministry of Agriculture, pollution-free nectarine has been gradually promoted in China's vast peach area. From the point of view of pest control, the so-called pollution-free peach refers to the pesticide residue in nectarine products is lower than the standard of pollution-free peach in China by minimizing the amount of pesticides and optimizing the control technology. In the development of pollution-free production, the use of a variety of pyrethroid pesticides should be bifenthrin as the preferred variety, because it has a good control effect on the main pests of Taoyuan, can play a role in spraying and treating a variety of pests.
Second, comprehensive measures based on agricultural prevention and control
Actively guide the peach farmers to select seedlings without pests and diseases, select seedlings with strong disease resistance, and appropriately increase the application of organic fertilizers to improve the resistance of the peach trees to pests and diseases. Strengthen the management of peach tree plant protection and Taoyuan field, remove weeds and litter in the garden, and do not give pests a place for production and reproduction. At the same time, it is necessary to pruning and rationally adopting peach gardens to cut off the branches and diseased branches of the stalks, and rationally cultivate the soil to hinder the comprehensive agricultural control measures such as the emergence and emergence of overwintering insects.
Third, biological control technology.
Biological control has the characteristics of being non-toxic, harmless and not polluting the environment. For example, domestic research has used the biological control technology of predatory mites to control peach mites, and has achieved certain effects. In another example, Indian researchers have found that rust fungi from the tropics are natural enemies of peach orchards that control the number of weeds. Biological control technology generally does not produce drug resistance, can control the damage for a long time and has low cost. It is an important means to prevent and control peach tree pests and produce pollution-free nectarine.
Fourth, physical and mechanical control.
Physical and mechanical control is a method of controlling pests using various physical factors, labor or equipment, including the simplest artificial killing, destroying the normal physiological activities of pests, and changing environmental conditions so that pests cannot be accepted and tolerated. Physical and mechanical control can be used both to prevent pests and as an emergency measure when pests have already occurred.
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