A method for agriculturally preventing and controlling spider mites in cotton fields through reasonable interplanting

Abstract

The invention belongs to the field of agricultural technology, and discloses a method for agriculturally preventing and controlling spider mites in cotton fields through reasonable interplanting. The row spacing of cotton is 40 cm, the spacing between plants is 15 cm, and the density is 11,000 plants per mu. Every four rows of cotton are interplanted with a row of flax, and the row spacing of flax is 1.6. In the field, plant a line of flax densely by ridge furrows to prevent cotton spider mites from spreading to the cotton field. The present invention realizes the agricultural prevention and control of spider mites in cotton field through the interplanting of cotton and flax, reduces the cost of prevention and control, reduces environmental pollution, protects natural enemies, and increases the benefit of cotton planting; cotton spider mites generally spread from the ridge to the cotton field in late May, densely The flax plants can block the insects. With the aging of the flax plants, they play a role in repelling the cotton spider mite. The cotton field interplanted with flax reduces the spider mites by 53% compared with the cotton field alone, reaching the goal of no pesticide control. As a result, after harvesting in late August, the benefits of cotton planting can be increased, and 40 kg of flaxseed per mu can be produced, bringing a profit of 240 yuan.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method for agriculturally preventing and controlling spider mites in cotton fields through rational interplanting. Background technique [0002] Currently, the closest prior art: [0003] Cotton field spider mite is an important pest that harms cotton, and its control is generally achieved through chemical control. Because of its small size, it is concentrated on the back of the leaves, which increases the difficulty of control. To achieve a good control effect, a large amount of pesticides are required, which increases the cost of pest control and causes environmental pollution. Large-scale spraying also kills the insects. Natural enemies were destroyed, and the cotton field ecosystem was damaged. [0004] It is of great practical significance to achieve the purpose of protecting natural enemies, reducing pesticides and increasing efficiency by studying effic...

AI Technical Summary

Problems solved by technology

[0006] (1) The conventional method of controlling spider mites in cotton fields is mainly chemical spraying, which is prone to chemical pollution

[0007] (2) Due to the small size of the insect, large occurrence, and hidden feeding, chemical spraying results in high control costs and reduces the benefits of cotton planting

[0008] (3) Chemical control is easy to kill natural enemies and damage the cotton field ecosystem

[0010] After a large number of cotton spider mites occur in cotton fields, if no practical control measures are taken, it will easily lead to a reduction in cotton production and reduce the economic benefits of cotton planting

However, the chemical pollution caused by spraying a large amount of chemical pesticides is unavoidable. At the same time, beneficial insects in cotton fields are sensitive to most pesticides. A small amount of pesticides can kill natural enemies and deteriorate the ecological environment of cotton fields.

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