CN104705303A - Pesticide composition for prevention and treatment of plant virus diseases - Google Patents

Abstract

The invention discloses a pesticide composition for the prevention and treatment of plant virus diseases. Active ingredients of the pesticide composition comprise an ingredient for the prevention and treatment of the plant virus diseases, and an ingredient for the prevention and treatment of a piercing-sucking mouthparts pest which is a spreading medium of the plant virus diseases, wherein the ingredient for the prevention and treatment of the plant virus diseases adopts oligosaccharin; the ingredient for the prevention and treatment of the piercing-sucking mouthparts pest which is the spreading medium of the plant virus diseases adopts clothianidin, dinotefuran, nitenpyram, or flonicamid. The pesticide composition provided by the invention achieves prevention and treatment of the virus diseases and the piercing-sucking mouthparts pest which is the spreading medium of the virus diseases at the same time, so that the plant virus diseases can be scientifically and comprehensively treated.

Description

A kind of composition pesticide preventing and treating the viroses of plant

Technical field

The present invention relates to the pesticide field in agricultural production, be specifically related to a kind of composition pesticide preventing and treating the viroses of plant.

Background technology

The parasitogenic disease of plant virus, plant virus carries out copying of nucleic acid (RNA or DNA) and protein coat in host cell, forms new virion.Plant virus plastochondria or viral nucleic acid transfer velocity between plant cell is very slow, then can shift rapidly with the nutrition flow direction of plant in vascular bundle, makes the morbidity of the plant whole body.Field often makes Symptoms complicated because of multiple viral Combined Infection, can be divided into flower leaf type, yellow type, necrotic type, lopsided type.

Plant virus disease pathogen is virus etc., and virus kinds comprises virus (occupying the majority), viroids, phytoplasma reach more than 30 and plant, and the known virus kinds of China has more than 10 kinds.Common and important has: (1) potato virus X (being called for short PVX), or claims potato mosaic viruses (2) marmor upsilon (being called for short PVY).Or claim potato heavy mosaic virus.(3) corium solani (being called for short PLRV).(4) potato virus S (being called for short PVS), or claim potato cryptovirus.(5) marmor solani (being called for short PVA), or claim potato light mosaic virus.In addition, cucumber mosaic virus (being called for short CMV), Tobacco rattle virus (being called for short TRV), alfalfa mosaic virus (being called for short AMV) etc. are also had

That a situation arises is closely related for the generation of the viroses of plant and aphid.Aphid is the main media that virus disease is propagated, and infects via the contact transmission of aphid juice.General aphid density is high, and the incidence of disease of virus disease is also high, and aphid density is low, and the incidence of disease of virus disease is also low.Particularly high temperature and drought weather can promote the breeding of aphid and pass poison.Therefore utilize medicament to kill aphid, effectively can cut off route of transmission, reach the object of preventing and treating virus disease.

Amino-oligosaccharide, english common name: oligosaccharins, the mechanism of action: a kind of bactericide with resistant effect that microbial metabolism is extracted, inhibitory action is had to the growth of germ, as affected fungus spore germination, bringing out hypha form and morphing, in the born of the same parents of mycelia, biochemical reaction changes, the mechanism that inducing plant produces disease resistance mainly excites gene expression in plants, produces the chitinase dextranase with antibacterial action.Protect element and PR albumen etc.; Have the gene expression suppressing germ, the Physiology and biochemistry of mycelia is morphed, and growth is suppressed simultaneously, simultaneously can also stimulating growth.

Clothianidin, english common name: clothianidin, the mechanism of action: a kind of insecticide in anabasine is the novel pesticide of a class highly effective and safe, high selectivity, and its effect is similar with nAChR, have tag, stomach toxicity and systemic activity.To be mainly used on paddy rice, vegetables, fruit tree and other crops anti-ly eliminating aphis, leafhopper, thrips, the Semiptera such as plant hopper, coleoptera, diptera and some Lepidoptera class pest insecticide, have efficient, wide spectrum, consumption are few, toxicity is low, the drug effect lasting period long, to crop without poisoning, use safety and conventional pesticide without advantages such as cross resistances, having remarkable interior suction and osmosis, is the another kind of alternative high-toxic organic phosphorus agricultural chemicals.

MTI-446, english common name: dinotefuran, the mechanism of action: be transmitted by spinal nerves and the systemic insecticides of stomach poison function of tagging, wide dispersion can be absorbed by plants fast, have excitation to nAChR.

Nitenpyram, english common name: nitenpyram, the mechanism of action: this product belongs to nicotimine insecticides, mainly acts on insect nerve system.Have nerve block effect to the synaptic receptor of insect, expand barrier film potential difference after spontaneous discharge, and finally make cynapse barrier film stimulate decline, result causes neural aixs cylinder to touch membrane potential passage stimulates disappearance, causes insect to benumb death.

Flonicamid, english common name: nitenpyram, the mechanism of action: this product belongs to nicotimine insecticides, mainly acts on insect nerve system.Have nerve block effect to the synaptic receptor of insect, expand barrier film potential difference after spontaneous discharge, and finally make cynapse barrier film stimulate decline, result causes neural aixs cylinder to touch membrane potential passage stimulates disappearance, causes insect to benumb death.

The present inventor conducts in-depth research with the mixture of clothianidin, MTI-446, Nitenpyram and flonicamid respectively to amino-oligosaccharide, on the basis of a large amount of engineer testings and field medicine effect test, find amino-oligosaccharide and clothianidin, MTI-446, Nitenpyram, flonicamid wherein one carry out combining, to the viroses of plant, there is good preventive and therapeutic effect, after further study, the present invention is completed.

Summary of the invention

The problem that prior art prevention and treatment effect on plant viral diseases to be solved by this invention is poor, the lasting period is short, provide a kind of prevent and treat the viroses of plant and virus disease simultaneously biography poison vector pests (sucking pest), efficiently, composition pesticide easily.

Technical scheme taked to achieve the object of the present invention is as follows:

A kind of control plant virus composition, active ingredient to be prevented and treated into viroses of plant communication media sucking pest by the control composition of the viroses of plant and is grouped into, wherein, the control composition of the viroses of plant is amino-oligosaccharide, and viroses of plant communication media sucking pest control composition is selected from the one in clothianidin, MTI-446, Nitenpyram, flonicamid; It is 20:1 ~ 1:20 that the control composition of the viroses of plant and viroses of plant communication media sucking pest prevent and treat composition quality portion rate; It is 1 ~ 60% that the control composition of the viroses of plant and viroses of plant communication media sucking pest prevent and treat composition gross mass mark percentage composition in the composition, and all the other are insecticides adjuvant.

For the ease of using and improving effect, by existing agricultural chemicals technology, composition pesticide of the present invention can be prepared into aqua, suspending agent, wettable powder disease, water dispersible granules.The processing technology of various preparation is prior art, can change to some extent according to different situations.

The auxiliary agent used in composition pesticide provided by the invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, safener, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., all various auxiliary agents conventional in Pesticide formulation, concrete composition and consumption, according to recipe requirements, are determined through simple test.

Composition pesticide provided by the invention, adopts spray method to use, also can adopt other operation techniques agriculturally applied as required.

Advantage of the present invention is:

Composition pesticide of the present invention achieves biography poison vector pests (sucking pest) of simultaneously preventing and treating the viroses of plant and virus disease, reaches efficient, long-acting object, improves the yield and quality of crop while improving the resistance against diseases of crop.

Embodiment

In order to make object of the present invention, technical scheme and advantage more short and sweet, the following specific embodiment of the present invention is described, but the present invention is only limitted to absolutely not these embodiments.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as the restriction to scope of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Content described in embodiment is all weight percentage.

Embodiment 1:10% amino-oligosaccharide Nitenpyram aqua.

Amino-oligosaccharide 5%, Nitenpyram 5%, phenethyl phenol polyoxyethanyl polypropylene-base ether 6.7%, polyoxyethylene nonylphenol ether 5.8%, diethylene glycol (DEG) 3.9%, deionized water supplies 100%.Above-mentioned each composition is dissolved, is mixed in water the liquid of clear homogeneous, 10% amino-oligosaccharide Nitenpyram aqua can be obtained.

Embodiment 2:20% amino-oligosaccharide MTI-446 suspending agent.

Amino-oligosaccharide 5%, MTI-446 15%, agriculture breast 1601#12.5%, to oleoyl amido methyl phenyl ethers anisole sulfonic acid 3.7%, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 5.8%, bentonite 4.2%, xanthans 0.3%, glycerine 4.7%, deionized water complements to 100%.Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, the obtained 20% amino-oligosaccharide MTI-446 suspending agent of allotment after high shear mixing.

Embodiment 3:15% amino-oligosaccharide clothianidin wetting powder.

Amino-oligosaccharide 5%, clothianidin 10%, wetting agent pulls open powder 6.2%, dispersant NNO 6.3%, and talcum powder 3.7%, kaolin complements to 100%.Mix entering in blender after above-mentioned formula in proportion coarse crushing, more namely obtain 15% amino-oligosaccharide MTI-446 wetting powder after air-flow crushing.

Embodiment 4:30% amino-oligosaccharide flonicamid water dispersible granules.

Amino-oligosaccharide 10%, flonicamid 20%, lauryl sodium sulfate 10.2%, polycarboxylate 4.8%, sodium chloride 5.1%, polyethylene glycol 4.6%, kaolin complements to 100%.By above-mentioned formula dry pulverization process, granulation, drying, the obtained 30% amino-oligosaccharide flonicamid water dispersible granules of screening preparation in proportion.

Embodiment 5: control potato virus disease field control effectiveness test.

Test period: on November 27th, 2013.

Test site: Lao Keng village, Ren Shan town, Huidong County of Guangdong Province.

Test method: medicament is watered 45,000 grams/acre of sprayings, arranges clear water contrast.Plot area 80m2, random district group arranges, and repeats 4 times.Insecticide spraying time is their early stage, and interval is 10 days, continuous spraying medicine 2 times, 5d, 10d investigation after last dispenser.Every community is determined strain continuously along ridge and is investigated 50 strains, in units of strain, carry out classification record, calculates disease index, control efficiency.

Severity Scaling standard:

0 grade: complete stool is anosis.

1 grade: lobus cardiacus veinclearing or slightly fall ill, or the morbidity of top 1/3 blade, but indeformable.

2 grades: 1/3-1/2 blade morbidity or minority deformable blade, or master pulse blackening, diseased plant downgrades for normal plant height more than 2/3.

3 grades: 1/2-2/3 blade morbidity, distortion or master arteries and veins are downright bad, and diseased plant downgrades the 1/2-2/3 for normal plant height.

4 grades: the morbidity of complete stool blade, gross distortion or necrosis, diseased plant downgrades for normal plant height more than 1/3 to 1/2.

Disease index, control efficiency computational methods are as follows:

According to survey data, calculate disease index and control efficiency

(1) disease index calculates by formula, and result of calculation retains 2 significant digits:

$X=\frac{\mathrm{\Σ}(N_i\×i)}{N\×9}\·\·\·\left(1\right)$

In formula: X represents disease index; N _irepresent the sick number of sheets at different levels; I represents relative level numerical value; N represents the total number of sheets of investigation.

(2) control efficiency calculates by formula:

$P=\frac{\mathrm{CK}-\mathrm{PT}}{\mathrm{CK}}\·\·\·\left(2\right)$

In formula: P represents control efficiency, unit is percentage (%); CK represents blank disease index; PT represents chemicals treatment disease index.

Result of the test shows: composition pesticide 10% amino-oligosaccharide Nitenpyram aqua of the present invention, 20% amino-oligosaccharide MTI-446 suspending agent, 15% amino-oligosaccharide MTI-446 wetting powder, 30% amino-oligosaccharide flonicamid water dispersible granules control potato virus disease preventive effect 87.65%, 90.68%, 86.47%, 88.26%, drug effect is obviously better than contrast medicine 5% amino-oligosaccharide aqua, 10% Nitenpyram aqua, 20% MTI-446 soluble granule, 50% clothianidin water dispersible granules, 10% flonicamid water dispersible granules preventive effect 53.21%, 47.83%, 50.39%, 48.42%, 51.20%, amino-oligosaccharide and Nitenpyram aqua are described, MTI-446, clothianidin, flonicamid wherein a kind of combination has increase drug action, favourable viroses of plant integrated control.

Table 1, a kind of control viral diseases of plants composition pesticide control potato virus disease field efficacy result table

Above-described embodiment is only for illustrating the present invention.Those skilled in the art can carry out changing to it and revise and reach equivalent object after understanding spirit of the present invention and principle, and these change and amendment, all should be covered by the present invention.

Claims (3)

1. prevent and treat the composition pesticide of the viroses of plant for one kind, it is characterized in that: active ingredient to be prevented and treated into viroses of plant communication media sucking pest by the control composition of the viroses of plant and is grouped into, wherein, the control composition of the viroses of plant is amino-oligosaccharide, and viroses of plant communication media sucking pest control composition is selected from the one in clothianidin, MTI-446, Nitenpyram, flonicamid.

2. a kind of composition pesticide preventing and treating the viroses of plant according to claim 1, is characterized in that: it is 20:1 ~ 1:20 that the control composition of the viroses of plant and viroses of plant communication media sucking pest prevent and treat composition quality portion rate.

3. a kind of composition pesticide preventing and treating the viroses of plant according to claim 1, is characterized in that: process aqua, suspending agent, wettable powder disease or water dispersible granules according to existing agricultural chemicals preparation technology.