Organic nitrogen agents and heterocyclic compounds

① Pujue: 40% Meidi wettable powder, which is an anti-mildew agent. It belongs to protective and highly systemic pesticides, with strong migration ability, which can penetrate into plants, migrate to roots, stems, leaves and other organs and tissues to achieve preventive and therapeutic effects. Its medicine is mild and its effect is strong. It has better control effect on Fusarium, Pericillin, Septouia SPP., etc., and can be mixed with other pesticides and fertilizers.

② Methyl Duobaojing: 70% methyl special bacteria wettable powder, commonly known as Duobaojing-M. Bactericide for preventive and curative effects. It has the functions of quick-acting, long-acting and migration. After spreading, it can be absorbed and migrated into the plant through leaves or roots, preventing the formation of spores and inhibiting the expansion of disease spots. It has dual effects of prevention and treatment of diseases caused by fungal pathogens such as Colletotoriclum SPP. It can be used for foliar spraying root irrigation, and can be used for soaking or medium irrigation after plant separation.

(3) Shawenling: 30% Shawenling solution is especially effective for diseases caused by vector sexually transmitted diseases, especially for vector transmitted pathogens such as Fusarium, seedling blight, and Fusarium. When used, the effect of irrigating stem base or root system is particularly significant.

④ Edeli: 25% Edeli emulsion and 35% Edeli wettable powder. It belongs to osmotic fungicide and has control effect on vector transmitted diseases caused by PhytoPhthoua. It can be absorbed from root system to stem and leaf, prevent spore germination and kill bacteria. Do not mix acidic pesticides and fertilizers when using. Application method: The best effect was found by diluting the agent to recommended control times, spraying infected parts and perfusing medium.

(5) Miepuning: 75% Bacidac WP. It has special and excellent control effect on seedling blight, white silk disease, sclerotinia sclerotiorum, rust, root rot and other medium or fungal diseases caused by Phaeospora fungi. Miepuning has dual effects of preventing spore germination and germination tube of diseased silk, and preventing spot expansion, deterioration and killing germs. It belongs to protective and therapeutic agents. It is very stable under PH value 5-9, can be used as stem and leaf spreading or medium perfusion, separate plant soaking, very safe, low toxicity, and can be mixed with other pesticides or fertilizers to achieve the effect of preventing and controlling various diseases and insect pests.

6 Poker pull: 25% medium Ba emulsion. It can prevent fungal diseases such as Collettuichum spp., Fusarium SPP., etc. The tolerance of Chinese orchid plants to this agent is poor. It is easy to cause phytotoxicity when it is spread or soaked in high concentration. Care should be taken when using it to avoid damage to plants.