Five categories of organic agriculture plant protection

The basic principle of organic agriculture plant protection is to start from the agricultural ecosystem and use various prevention and control measures comprehensively. The comprehensive measures of organic agricultural plant protection include: ecological management of farmland, agricultural prevention and control measures, physical prevention and control measures, biological prevention and control measures, and the input of organic plant protection agents.

ecological management measures

① Green belt: reduce weed breeding places. Try to choose plants that are not easy to breed pests, such as camphor, heather, castor and various spice plants.

② Protection of natural enemies: no substances harmful to the natural enemies of pests.

③ Combination of planting and breeding: such as rice and duck farming and chicken raising in tea garden.

agricultural prevention and control measures

① Select good varieties resistant to diseases and insect pests.

② Intercropping, intercropping, crop rotation and fallow. Such as Chinese cabbage and lettuce intercropping, vegetables and rice rotation, wheat interplanting peanut, etc.; fallow is conducive to ecological restoration.

③ Garden clearing, garden closing, pruning and fallow. Autumn and winter clear garden, winter and spring garden, fruit tree pruning, paddy fallow.

④ Timely irrigation and high temperature stuffy shed. According to the characteristics of some diseases and insect pests, combined with irrigation measures or flooding to suffocate; high temperature stuffy shed should pay attention to time and temperature.

⑤ Reasonable fertilization. According to crop demand reasonable collocation of organic fertilizer, avoid overgrowth.

Physical prevention and control measures

① Physical isolation measures to protect the reasonable use of insect nets.

② Attractors: including sex attractants and food attractants. At present, there are corresponding sex attractants for coleoptera pests such as triptera, diamondback moth, Spodoptera litura and other lepidoptera pests, as well as storage pests such as tobacco armour and corn elephant. In addition, sweet and sour liquid has been widely used for many years as a food attractant.

The trap board, mainly including yellow, green and blue trap board. Yellow can be used to assist in the treatment of aphids, whitefly, psyllid and other homoptera pests; green trap board is generally used to trap and kill tea small green leafhopper; blue can be used to assist in the control of thrips.

Biological prevention and control measures

① Mainly to control insects with insects, mites with mites, insects with bacteria, bacteria with bacteria and other biological control measures.

②Through the effect of cross-pollination of the pollinating insect bumblebee, the yield is increased, the rate of deformed fruit vegetables is reduced, and the quality of fruit vegetables is improved. Can also reduce gray mold, prevent hormone poisoning.

organic plant protection agent

In addition to the plant protection inputs applied to physical prevention and control, biological agents in line with organic agricultural production are essential for various diseases and insect pests and adverse symptoms in the process of organic agriculture. Organic plant protection agents are classified from sources, including all kinds of plant sources, mineral sources, microbial agents and other products, and from uses to include pesticides, fungicides, herbicides, adjuvants, plant growth regulators and so on.

Organic plant protection agent use should pay attention:

① Take control measures according to the occurrence law of diseases and insect pests and early warning information;

② unified defense rule, do not leave dead corners;

③ The front and back of the leaves were evenly treated with medicine;

④ Understand the main breeding sites of pests and focus on spraying;

⑤ Do not use river water, alkaline water and hard water;

The choice of morning and evening, to avoid rapid decomposition or volatilization of drugs.