I: Types of fungicides

① According to the chemical structure is divided into: organic fungicides, inorganic fungicides;

② according to the source of fungicides raw materials are divided into: inorganic fungicides, organosulfur fungicides, organophosphorus organic arsenic fungicides, replace benzene fungicides, azole fungicides, copper fungicides, antimicrobial fungicides, compound fungicides, other types of fungicides;

③ According to the use of fungicides (function) is divided into: protective agents, therapeutic agents, eradication agents, internal absorbents and preservatives;

④ According to the conduction characteristics are divided into: endosorbent fungicides and non-endosorbent fungicides;

⑤ according to the role of specialization is divided into: multi-dot (non-specialized) fungicides and single-dot (specialization) fungicides;

(6) According to the different modes of action: protective fungicides (contact fungicidal action and residual fungicidal action), systemic fungicides (to the top of the conduction and to the base conduction);

(7) According to the method of use: soil treatment agent, stem and leaf treatment agent, seed treatment agent;

⑧ According to the different types of chemical structure: carbamate derivatives fungicides, amide fungicides, six-membered heterocyclic fungicides, five-membered heterocyclic fungicides, organophosphorus and methoxypropionate fungicides, copper fungicides, inorganic sulfur fungicides, organic arsenic fungicides and other types of fungicides;

Two: excellent compounding of fungicide pyraclofosfom and six contraindications

①Pyrazole ethermethoate + Dextran: stop the invasion of the disease; prevent the spread of the disease; remove the disease in the crop, etc. Rapid action, stable and reliable efficacy, long duration, safe for crops; improve physiological activity of crops, delay aging, ensure yield and quality, etc.

②Pyrazoxystrobin + Cyanoxazole: It is effective against grapevine mildew. It has a broad spectrum of fungicide, long duration of effect, and is resistant to rain. It has internal absorption, protection and therapeutic effects, and can be used for stem and leaf treatment.

③Pyrazoxystrobin + Flucycloxazole: It is effective against banana leaf spot disease. High activity, strong systemic absorption and long duration of effect.

④Pyrazoxystrobin+isoxaflutole: It has special effect on apple tree spotted leaf spot and brown spot disease. It can also be used for the control of fungal diseases of other fruit trees and vegetables. The combination of penetration conduction and touch kill enhances the rapidity and duration of efficacy.

⑤ Pyrazoxystrobin + quinoline copper: It is effective for apple verticillium disease. Quinoline copper sprayed on the surface of the crop can form a tight protective film, which can directly kill the pathogenic bacteria inside the film and prevent re-infiltration.

(6) Pyraclofosfom + acetamiprid: It is effective against gray mold of grapes. It has a broad spectrum of fungicidal activity, and has a strong ability to inhibit the germination of spores, and has no cross-resistance with other fungicides.

(7) pyraclofosfom + zinc endosulfan: effective against cucumber downy mildew, is a fungicide broad-spectrum, fast protective fungicide. It works by inhibiting the oxidation of pyruvic acid in pathogenic bacteria.

⑧ pyraclofenoxuron + tebuconazole: It is effective against powdery mildew and erythromycosis. Tebuconazole is a biosynthetic that inhibits ergosterol of pathogenic bacteria.

⑨ pyrazoxystrobin + oxazoxystrobin: It is effective against potato late blight. Oxazinone has strong endosmosis and is lipophilic. After spraying on the foliage of the crop, it has the property of easy adhesion and resistance to rainwater washing. Pyraclofosfom-methyl is fast-acting and can penetrate into the leaves in a few minutes after application, and the active ingredient spreads in the leaf flesh tissue, which can effectively control the pathogenic spores in the leaves and has both preventive effect and long duration.

⑩Pyrazoximethanil+Phenoxymethoxazole: It has special effect on citrus anthracnose. Phenoxymethoxazole is a mitochondrial respiration inhibitor, inhibiting the biosynthesis of cell wall sterols, with protective, therapeutic and leaf penetration conductive effects.