59 results about "Pear scab" patented technology

The invention belongs to the technical field of agricultural fungicides and discloses 2-mercaptobenzothiazole manganese zinc as well as a preparation and an application of 2-mercaptobenzothiazole manganese zinc. The chemical structural formula of 2-mercaptobenzothiazole manganese zinc is as shown in the specification, wherein m, n and n' are positive integers, m=2(n+n'), n is not less than n', and n:n'=(1:1)-(9:1). The preparation method comprises the following steps: preparing materials according to the stoichiometric ratio of a target product; dissolving 2-mercaptobenzothiazole in a sodium hydroxide solution; sequentially adding a water solution of water-soluble manganese salt and a water solution of water-soluble zinc salt into a 2-mercaptobenzothiazole sodium solution, stirring, uniformly mixing, standing, filtering and washing with water to obtain a filter cake; performing vacuum drying on the filter cake to obtain 2-mercaptobenzothiazole manganese zinc. The 2-mercaptobenzothiazole manganese zinc disclosed by the invention can be used as the agricultural fungicide. According to the 2-mercaptobenzothiazole manganese zinc disclosed by the invention, zinc is complexed on a surface layer of a 2-mercaptobenzothiazole manganese solid to form a stable 2-mercaptobenzothiazole manganese and zinc complex. Tests show that the complex has excellent control effects on a variety of diseases, such as apple altermaria leaf spot, pear scab, apple ring rot, and apple anthracnose.

The invention discloses a tebuconazole fungicide. The invention belongs to the fungicide technology in the field of plant protection. The composition of the present invention comprises: 10-800 parts of tebuconazole, 20-40 parts of wetting agent, 20-40 parts of dispersant, 20-80 parts of disintegrating agent, 10-50 parts of adsorbent, 10-60 parts of adhesive, Stabilizer 10-80 parts, filler 50-500 parts. The above ingredients are mixed in proportion, after stirring evenly, the mesh powder is obtained by crushing, and the mesh powder and the adhesive are mixed uniformly, then granulated, dried, and sieved to obtain tebuconazole water-dispersible granules. The disadvantages of the existing formulations of azole alcohol reduce the cost of use of farmers and the pollution of the environment, and the present invention has the advantages of high content, fast disintegration, good dispersibility, good storage, transportation and stability during use, and has high activity and high efficacy. Good, safe, mainly used for the control of wheat powdery mildew, banana leaf spot, apple leaf spot, pear scab.

The present invention relates to a preparation method of compounded fungicide and application, in particular, it relates to a preparation method for compounding fungicide by using organosulfur and diniconazole and its application. It includes two dosage forms of suspension seed dressing agent and suspension, and can be used for effectively preventing and curing smut of corn, pear scab, powdery mildew of cereals and vinyl black spot, etc.

The invention belongs to the pesticide field and in particular relates to a bactericide for treating pear scab. The technical scheme is as follows: the bactericide comprises the following active ingredients: 5-80% of flusilazole and 8-80% of carbendazim by mass fraction. The bactericide compounded by flusilazole and carbendazim is efficient, low-toxic and systemic, has broad spectrum and has better control effect on various diseases of the fruit trees, vegetables and wheat, such as scab, brown spot, powdery mildew, anthracnose, smut, ring rot, anthracnose, leaf mould, fusarium head blight, etc.

The invention discloses a veratrine plant source compound bactericide and application thereof. The veratrine plant source compound bactericide is prepared from the following raw materials in percentage by weight: 0.1 to 10 percent of veratrine, 1 to 20 percent of a willow bark extract and the balance of auxiliaries, wherein the veratrine is a total veratrine-containing pure product, a mixture or a veratrum plant extract. The veratrine plant source compound bactericide is microemulsion, water aqua or wettable powder. The bactericide disclosed by the invention does not contain any chemical pesticidal components, easily degrades in an environment, and is safe to human, livestock and the environment; pathogenic bacteria cannot resist the veratrine plant source compound bactericide; meanwhile, the veratrine plant source compound bactericide has the advantages of high stability, high efficiency and low cost. The bactericide can be used for preventing and treating one or more of diseases of crops, such as brown rot, gray mold, soft rot, pear scab, bacterial shot hole, downy mildew, phytophthora root rot, powdery mildew, late blight and dry rot, and also used for preventing and treating other plant diseases.

The invention discloses a bactericidal composition containing cyclohexastrobin and enoxistrobin and application thereof. The bactericidal composition uses cyclohexastrobin and enoxastrobin as main active ingredients, wherein the mass ratio of cyclohexastrobin to oxastrobin is 1:50-70:1. The bactericidal composition can be applied to the prevention and treatment of cereals, fruit trees, and vegetable diseases, has a high synergistic effect, overcomes and delays the drug resistance of pathogens, has fast sterilization speed, long-lasting effect, reduces application costs, and has good control effect. Significantly better than its single dose use. The present invention can be used to control fungal diseases on crops, especially can be used to control tomato gray mold, pear scab, wheat rust, wheat powdery mildew, rice sheath blight, cucumber powdery mildew, grape downy mildew, tomato Early blight and other fungal diseases, the effect is better than a single dose.

The invention relates to a sterilizing composition containing enestroburin and tiadinil. An effective component is a binary compound of the enestroburin and the tiadinil. The mass ratio of the enestroburin to the tiadinil is (1-40): (40-1); the mass part ratio of the effective components enestroburin to the tiadinil in a preparation is 1-80%; and the residue is auxiliary components which are allowably used and acceptable in pesticides. The dosage forms of the sterilizing composition disclosed by the invention comprise missible oil, a suspending agent, wettable powder, a water dispersible granule, emulsion in water and micro-emulsion; and the sterilizing composition is mainly used for preventing and controlling powdery mildew, rust disease and rice blast, and has certain effects of banded sclerotial blight, late blight or epidemic diseases, downy mildew, rice sheath blight disease, false smut, apple altermaria leaf spot, sigatoka and pear scab.

The present invention relates to plant disease prevention and control with plant extract, and is especially purplestem eupatorium extract for plant disease prevention and control. The n-hexane and petroleum ether extract of purplestem eupatorium has high inhibiting activity on the pathogenic bacteria causing foot rot of broad bean, early blight of tomato, rice blast and pear scab. The purplestem eupatorium extract may be used to prepare germicide with other natural plant extracts, and the germicide has excellent prevention and control effect on plant diseases. The present invention utilizes purplestem eupatorium extract in preventing and controlling plant diseases for the first time.

The invention discloses a bactericidal composition for controlling main fungal diseases of pears and application thereof. The bactericidal composition adopts flusilazole, pyraclostrobin and a chitosanquaternary ammonium salt as the main components, according to different action mechanisms of flusilazole and pyraclostrobin, combines the induced disease resistance and the film-forming properties ofchitosan quaternary ammonium salt, and is assisted by appropriate auxiliary assistants, wherein the chitosan quaternary ammonium salt accounts for 50% of the mass of the main components, and the massratio of flusilazole to pyraclostrobin is 1:10-10:1. The bactericidal composition shows a synergistic effect in the above proportion range, has the characteristics of high efficiency, low toxicity, broad spectrum, long lasting period and low application cost, meanwhile delays the drug resistance of pathogenic bacteria, and reduces the dosage of chemical fungicides. The bactericidal composition can be used for controlling main fungal diseases of pears, especially pear black spot, pear scab, pear anthracnose, pear rust, pear fruit ring rot and other fungal diseases, and has obviously superior control effects to corresponding single agents and conventional compounding agents.

The invention provides a bactericide composition for preventing and treating pear black spots and belongs to the technical field of pesticides. The bactericide composition for preventing and treating the pear black spots is prepared from, by weight, 10-30 parts of radix angelicae pubescentis, 10-30 parts of fructus cnidii, 10-30 parts of sophora alopecuroide, 10-30 parts of broom flowers, 5-20 parts of herba asari sieboldii, 5-20 parts of lesser bougainvillea flowers, 5-20 parts of calculus bovis, 5-15 parts of the fruit of Chinese magnoliavine, 3-12 parts of cacumen biotae, 3-12 parts of apocynum venetum, 3-12 parts of solidago virgaurea, 1-10 parts of saururus chinensis and 1-5 parts of biological fungicide, and the biological fungicide is prepared from, by mass, 50%-70% of bacillus subtilis and 30%-50% of beauveria bassiana. The bactericide composition can efficiently prevent and treat the pear black spots, the preventing and treating effect can reach 97% or above, the pesticide effect is stable, and duration time is long; the stress resistance of pear trees can be improved, and the bactericide composition also has a good preventing and treating effect on pear scab, the pear rust disease, pear phylloxera and the like.