32results about How to "Prevention and treatment of viral diseases" patented technology

Disclosed are phenanthrene-containing heterocyclic compounds shown as general formula (I) and preparation method therefor and application thereof on pesticides. The synthetic method of the compounds is simple and easy to industrialize. The phenanthrene-containing heterocyclic compounds can be used as plant virucides to inhibit tobacco mosaic virus, pepper virus, rice virus, tomato virus, sweet potato virus, potato virus, melon virus, maize dwarf mosaic virus and the like, particularly to inhibit tobacco mosaic virus. R1, R2, R3, X1-X7, m and n in general formula (I) are as defined in description.

The invention relates to a tryptophan derivative (I), a preparing method of the tryptophan derivative (I), and application of the tryptophan derivative (I) in preventing and treating plant viruses, killing bacteria and killing insects. The formula of the tryptophan derivative (I) is shown in the description, and the meanings of all groups in the formula are shown in the description. The tryptophan derivative expresses especially excellent plant virus resisting activity, and also has broad-spectrum bactericidal activity and insecticidal activity.

The invention discloses a nematicidal disease-resistant composition and application thereof. The composition comprises the active ingredients of fluensulfone and lentinan, and the mass ratio of fluensulfone to lentinan ranges from 1:80 to 80:1. The composition has a significant synergistic effect, can prevent and treat nematodes of the whole crop growth period, can improve the immunity of crops and has a good preventing and treating effect on soil-borne diseases such as virus diseases and blight.

The invention discloses an organic cultivation method for yacon trees and belongs to the field of planting. The organic cultivation method comprises the steps of selecting land, preparing the land, selecting seeds, sowing the seeds, conducting field management and harvesting. Ridging and membrane covering are adopted in the planting mode. The width of ridges is 55-65 cm, the height of the ridges is 35-40 cm, and the space between the ridges is 110-130 cm. After yacon seed stems are treated through a potassium permanganate solution, the hole sowing mode is adopted for planting. Compared with the prior art, the organic cultivation method has the following advantages that the growth period is short, the yield is high, and quality and mouthfeel are good; the method is simple, convenient to popularize and suitable for mass production; vegetable seed cake fertilizer is used, and the fertilizer efficiency is good in comprehensiveness and lasting; the ridging and membrane covering method is adopted, soil thermal insulation and moisturizing are facilitated, the ridge space is set to be wide, plants can fully receive sunshine and ventilation, and the air permeability of soil is improved; cultivated yacon is large in size and plump.

The invention relates to a bactericidal composition containing an alternaria tenuissima activator protein. The alternaria tenuissima activator protein and a compound A serve as active ingredients, andthe compound A is a tetrahydro-beta-carboline compound containing an acylhydrazone structure. The composition can be used for controlling viral diseases of fruit trees, vegetables and field crops andcan achieve the effects of effectively improving stress resistance of the crops, regulating growth of the crops, promoting flowering, improving yield, improving the fruit quality and the like.

The invention relates to an N-(1, 2-diphenyl-2-amino)-thiophosphoramide salt compound and application thereof. The structural formula of the compound is shown as the specification (with the definitions of the groups being shown in the specification). The compound provided by the invention is applied to inhibition of tobacco mosaic virus, pepper virus, tomato virus, sweet potato virus, potato virus, cucurbit virus and maize dwarf mosaic virus, can effectively control the virus diseases of tobacco, hot pepper, tomatoes, cucurbites, grains, vegetables, beans and other crops, and is especially suitable for control of tobacco mosaic virus. (structural formula).

The invention relates to a simple method for preparing fermentation liquor of vegetable and fruit agricultural products. According to the invention, vegetable and fruit agricultural products are fermented to obtain the fermentation liquor, so that the original traditional Chinese medicine efficacies of the vegetable and fruit agricultural products are enhanced, and the simple method can be applied to the fields of medical care and illness prevention and treatment; the situation that the vegetable and fruit agricultural products are disposed as garbage is avoided, the comprehensive energy utilization ratio and the additional value of the vegetable and fruit agricultural products resources can be obviously improved, and the purposes of energy conservation and environmental friendliness are achieved; the operation is simple, the simple method is suitable for various large-scale and small-scale production, and is low in cost and high in gain; and the energies of the vegetable and fruit agricultural product resources are more reasonably and sufficiently utilized. The simple method comprises the following steps of: cutting up at least one vegetable or fruit, smashing or stamping into mud juice; sealing the mud juice into a container capable of being sealed, and placing in a sealed mode; fermenting under environment with the temperature being 12-65 DEG C for 7-100 days to obtain the fermentation liquor, wherein the PH value of the fermentation liquor is 6-9; filtering the formation liquor by metal gauze or gauze filtering device, filling the fermentation liquor after filtering into a container, and storing the fermentation liquor for standby use; and filling the remained material after filtering into the container capable of being sealed again.

The invention provides a method for improving the antiviral immunity of fishes. The antiviral immunity of the fishes is enhanced by increasing the expression amount of Bmp8a protein. The invention firstly provides use of the Bmp8a protein, which is application of the Bmp8a protein in the preparation of a product for improving the antiviral immunity of the fishes. According to the method, it is proved that the antiviral capacity of zebra fishes after bmp8a gene knockout is significantly reduced, over-expression of the Bmp8a can significantly up-regulate the expression of antiviral related genessuch as interferon, and it is shown that the Bmp8a plays an important role in the antiviral immunity. Bmp8a mature peptides are injected in the fishes, which enhances the antiviral immunity of the fishes, thereby achieving the purpose of preventing and treating viral diseases of the fishes.

The invention relates to a cerbera manghas aldehyde derivative, namely cyclopentenopyridine, as well as a synthesis method and application thereof in plant protection, and belongs to the technical field of pesticides. The invention finds that a natural product, namely cerbera manghas aldehyde, has activity of plant virus prevention, insect killing and sterilization for a fist time, the natural product can be used as a novel plant source pesticide or can be developed as a lead compound, and secondly, a simple and efficient synthesis method for preparing cyclopentenopyridine from genipin as a raw material is found. Plant virus activity resistance tests of the cyclopentenopyridine provided by the invention show that the cyclopentenopyridine has activity on tobacco mosaic viruses, and the activity is prior to that of the lead compound cerbera manghas aldehyde; and insect killing and sterilization activity tests show that most compounds have very good activity on plutella xylostella, and inaddition have activity on 14 plant pathogenic bacteria.

The invention discloses application of a substituted ether and thioether compound, represented by a general formula I shown in specifications, as a plant virus resisting agent. In the formula, all substituents are as defined in the specifications. The compound represented by the general formula I has very good plant virus resisting activity and can be used for preventing and treating virus diseases of a variety of crops, such as tobacco, vegetables, fruit trees, legumes, cereals and potatoes.

The invention relates to a method for fully synthesizing natural product cerbinal and application in plant protection, and belongs to the technical field of pesticides. The method comprise the steps that genipin is used as a raw material; the first step, the raw material genipin is oxidized by IBX to obtain a compound 1; and the second step, DDQ and acid are added, and the compound 1 is oxidized and dehydrated to obtain the cerbinal. The method does not adopt a protecting group strategy, first, IBX only oxidizes a primary hydroxyl group and does not react with an acetal hydroxyl group to obtain an intermediate 1; and then, oxidative dehydrogenation and elimination of dehydration are completed simultaneously, the natural product cerbinal is synthesized only in two steps, a synthetic route is significantly shortened, and the application prospects are good. It is found the first time that the natural product cerbinal has anti-plant virus, insecticidal and bactericidal activity by the method, and the cerbinal can be developed as a novel plant-derived pesticide or as a lead compound.

The invention discloses a premix used for preventing and treating viral diseases of shrimps and crabs. The premix used for preventing and treating the viral diseases of the shrimps and crabs comprisesthe following raw materials: bentonite, fine wheat bran powder, iron, copper, zinc, manganese, potassium iodide, sodium selenite, vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2,vitamin B6, vitamin B12, vitamin C, nicotinic acid, biotin, folic acid, calcium pantothenate, inositol, oxytetracycline, a flavoring agent, a sweetener, and traditional Chinese medicine powder. By improving proportion of the raw materials, the contents of the various trace elements and the vitamins are more balanced; moreover, the traditional Chinese medicine powder capable of preventing and treating the viral diseases is added so that the premix is capable of effectively preventing and treating viral diseases of the shrimps and crabs. The invention further discloses a preparation method of the premix used for preventing and treating the viral diseases of the shrimps and crabs. The preparation method has processes which can be easily standardized, and is suitable for large-scale production; and thus, the preparation method is of great significance to improvement of product competitiveness of enterprises, expansion of market share, promotion of technological innovations and technological progresses of enterprises, and so on.

The invention relates to a RNA interference sequence targeting a cucumber mosaic virus, an expression vector thereof and application. The cucumber mosaic virus targeted RNA interference sequence is double-stranded RNA, is composed of a sense strand and an antisense strand, and is an interference sequence GT1 of a GT1 gene specifically targeting CMV-1a protein, or an interference sequence GT2 of a GT2 gene specifically targeting CMV-1a protein, or an interference sequence GT3 of a GT3 gene specifically targeting CMV-2a protein, or an interference sequence GT4 of a GT4 gene specifically targeting CMV-2a protein, or an interference sequence GT5 of a GT5 gene specifically targeting CMV-CP protein, or an interference sequence GT16 of a GT6 gene specifically targeting CMV-MP protein. The double-stranded RNA interference sequence is used for degrading target messenger RNA, reducing expression of target protein, effectively silencing CMV genes and controlling CMV infection, and has the characteristic of environmental friendliness and high commercial application value.

The invention relates to the technical field of planting, in particular to a cultivation method and application of green food cucumbers. Physical insect prevention is carried out in different growth stages of cucumber plants under the cooperation of warm water seed soaking, base fertilizer, a sunshade net, an insect prevention net and a yellow plate, plant diseases and insect pests can be reduced,meanwhile, use of chemical pesticides can be reduced, and it is guaranteed that the green food production requirement is met. The problems that an existing green cucumber planting method is complex,the fertilizer using amount is high, the water amount is large, and the yield is low are solved.