10results about How to "Improve herbicidal activity" patented technology

This invention discloses a herbicidal composition and its application. The composition comprises active ingredient A and active ingredient B, wherein active ingredient A is a compound of formula (I), and active ingredient B is selected from either flufenoxuron or pyrimethanil. The mass ratio of active ingredient A to active ingredient B in the composition is 1:20-10:1. This invention also relates to the use of the herbicidal composition in controlling the germination or growth of weeds in useful plants, particularly suitable for controlling the germination or growth of weeds in peanut fields.

The present application relates to a kind of β-cyclodextrin-linalool nanoparticles, preparation method and its application, the specific preparation method includes mixing reaction, ultrasonic, centrifugal, drying and the like steps, aims at obtaining the particle size suitable, embedding rate high, the β-cyclodextrin-linalool nanoparticles of good stability, and the application of the nanoparticle in the research of plant physiological and biochemical indexes etc., provide new way and method for the application of linalool.

This invention relates to the fields of compound synthesis technology and pesticide technology, specifically to natural naphthoquinone derivatives and their preparation methods and applications. The natural naphthoquinone derivatives are either natural naphthoquinone derivatives containing aryl carboxylic acids or natural naphthoquinone derivatives containing diphenyl ether units. Some of the natural naphthoquinone aryl carboxylic acid derivatives and natural naphthoquinone diphenyl ether derivatives of this invention exhibit 100% control efficacy against six weeds (barnyard grass, crabgrass, foxtail grass, velvetleaf, amaranth, purslane, etc.) at a dosage of 300 a.g. / ha. These compounds achieve good weed control effects at low dosages and have relatively good safety for crops such as corn, wheat, peanuts, soybeans, and cotton. They can be used as selective herbicides in agriculture. The compounds of this invention can be developed and used as potential PSII inhibitors and post-emergence herbicides for broadleaf weeds. The derivatives have simple structures and preparation processes, low production costs, and broad application prospects.

The present application relates to the field of compound synthesis technology and pesticides, and in particular to a pyridazine derivative, a preparation method and application thereof, the pyridazine derivative is an aromatic ether and an N-substituted phenylcarboxamide group; the aromatic ether is a substituted pyridazine group substituted phenyl ether; the substituted phenyl group is trifluoromethyl or halogen substitution, and the phenyl group containing the N-substituted phenylcarboxamide group is substituted by different halogen groups; the derivative has effective pre-emergence and post-emergence herbicidal activity, and can be applied as a herbicide; the structure of the derivative is simple, the production cost is low, and the application prospect is wide.

The present application relates to the technical field of compound synthesis and pesticides, and particularly relates to a kind of N Phenylpyrimidine diketone derivatives, preparation method and application thereof N The phenylpyrimidine diketone derivatives have 100% prevention and removal effect on gramineous weeds and broadleaf weeds at a dose of 9.375-150 a.i.g / ha; the compounds can obtain good herbicidal effect at a low dose, and can be used as potential PPO inhibitors and post-emergence herbicides, the derivative has novel structure, simple preparation process, low production cost and wide application prospect.

The application discloses enoxamacetone diamine salts, a preparation method and application thereof. The stability of enoxamacetone diamine salts (enoxamacetone 1,4-butane diamine salt, enoxamacetone 1,5-pentane diamine salt and enoxamacetone 1,6-hexane diamine salt) is better than that of enoxamacetone and enoxamacetone monoamine salt (for example, enoxamacetone tert-butylamine salt); meanwhile, the weeding activity of the enoxamacetone diamine salt (enoxamacetone ethylenediamine salt, enoxamacetone 1,4-butane diamine salt and enoxamacetone 1,5-pentane diamine salt) is better than that of enoxamacetone tert-butylamine salt, wherein the weeding activity of enoxamacetone 1,5-pentane diamine salt is better than that of enoxamacetone. Most of the enoxamacetone diamine salts have low degradation rate during high-temperature heat storage, are easier to be stored for a long time, have higher melting point than enoxamacetone monoamine salt (for example, enoxamacetone tert-butylamine salt), are more convenient for granulation and crushing, are more convenient for being processed into solid dosage forms such as water dispersible granules as weeding agents, have better physical properties of preparations, and have good commercialization prospect.

The present application relates to a kind of arylamino-containing xanthine derivatives and its preparation method and application.On the basis of 1,3-disubstituted xanthine raw material, arylamino-containing xanthine derivatives obtained by series of reactions are shown as general formula I.Compounds of general formula I have higher herbicidal activity, and have obvious activity on rape, amaranthus retroflexus, barnyard grass, crabgrass, have good insecticidal activity, especially on the effect of diamondback moth is remarkable, have good fungicidal activity, and have obvious in vitro inhibitory activity on wheat scab fungus, pepper phytophthora blight fungus, sclerotinia sclerotiorum, cucumber fusarium wilt fungus, apple phialophora quercina, wheat sharp eyespot fungus, etc.Compounds of general formula I can be used as active components of herbicidal or insecticidal or fungicidal composition, for preparing agricultural herbicide or insecticide or fungicide, and can be used for the prevention and treatment of grass damage or insect damage or pathogenic damage on various crops.Also have good inhibitory effect on the activity of KARI, and can be used for KARI inhibitor.

The present application relates to an inhibitor compound, and aims to provide an acetohydroxy acid synthase inhibitor and a preparation method and application as a herbicide thereof. The structural formula of the compound is shown as formula (I), and the compound specifically inhibits the activity of acetohydroxy acid synthase or its mutant W574L in plants. The present application further provides a method for applying the compound as an agricultural chemical herbicide. The compound has good enzyme inhibition activity on wild-type acetohydroxy acid synthase and / or its mutant W574L, and thus can be used as an agricultural chemical herbicide for the prevention and treatment of various weeds in the agricultural field; can be used as a pre-emergence and post-emergence herbicide, and the prevention and treatment objects include various field weeds, and has a special effect on the prevention and treatment of the malignant weed Euphorbia lathyris L.; has the characteristics of low dosage, excellent herbicidal activity, wide weed spectrum, good transmission, wide application window period, safety to rice and the like.

The invention belongs to the field of pesticides, and particularly relates to a herbicide composition containing pendimethalin and pyroxasulfone, the weight ratio of pendimethalin to pyroxasulfone is (1: 15)-(15: 1), the two active ingredients have a remarkable synergistic effect on various weeds, the two active ingredients are compounded to form a suspoemulsion composition, the stability is good, and the herbicide composition is suitable for industrial production.

This invention discloses a substituted quinazolinone-isoxazoline compound, its preparation method, and its application. Using toluene as a solvent, sodium trifluoromethyl sulfinate is reacted with compound (I) to generate compound (II). Compound (II) reacts with compound (III) to generate compound (IV). Compound (IV) reacts with R1I to generate compound (V). Compound (V) is heated under reflux using a prepared sulfuric acid / acetic acid / aqueous solution as a solvent to generate an acidic hydrolysis product. Using DCM as a solvent and EDCl and DMAP as condensing agents, the acidic hydrolysis product is condensed to obtain the target product, a substituted quinazolinone-isoxazoline compound. Herbicidal activity tests show that at a concentration of 10 ppm, it exhibits excellent herbicidal activity in dicotyledonous rapeseed and monocotyledonous wheat VI13 and VI15.