CN104839170A

CN104839170A - Sterilization agent for removing crisp pear calyxes and preventing diseases and insect pests caused by fungi

Info

Publication number: CN104839170A
Application number: CN201510176877.0A
Authority: CN
Inventors: 王盼盼
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-15
Filing date: 2015-04-15
Publication date: 2015-08-19

Abstract

The invention discloses a sterilization agent for removing crisp pear calyxes and preventing diseases and insect pests caused by fungi, is used for solving the problems that a conventional single agent is relatively poor in safety, the fruit setting rate is low and the effects of preventing diseases and insect pests caused by fungi and sterilization are poor, and is characterized in that the sterilization agent is prepared from difenoconazole, propiconazole, nonylphenol polyoxyethylene ether NP15, an emulsifier 1601, sorbitan laurate, an emulsifier 500#, toluene and deionized water. With compounding of a plurality of single agents, the sterilization agent is mainly used for removing the calyxes and effectively preventing and treating various fungi, and is used before pear flowering, during flowering and after flowering; the sterilization agent is sprayed on petals in a crisp pear flowering period, and can effectively remove the calyxes; the sterilization agent is sprayed on fruits, leaf surfaces, tree trunks and roots in the fruit growth period, can form a protective layer, and effectively prevents against infringement of various fungi.

Description

Take off calyx for crisp pears and prevent fungus-caused damage by disease and insect bactericidal agent

Technical field

The present invention relates to a kind of fruit agricultural chemicals goods, relate to a kind of for changing fruit male and female and there is the medicine preventing fungus-caused damage by disease and insect and biocidal efficacies or rather.

Background technology

Be widely used in de-calyx at present and prevent the medicine of fungus-caused damage by disease and insect and sterilization a kind of single dose often, safety is poor, fruit-setting rate is low, and effectively can not change the male and female of pears, meat is relatively thicker later, juice is few, core is large, skin depth, pit are large, profile is irregular, eating mouth feel is not good, directly affects selling price to make pears maturation.

The medicament disinfecting being widely used in antifungal is at present also more single, fast and effeciently cannot kill fungi; Can not absorb in cauline leaf limb portion rapidly, cannot form at contact surface the infringement that various fungi do not resisted by protective layer, can not sac fungi effectively in prevention and therapy, particularly orchard, basidiomycetes and imperfect fungus initiation disease.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art provide a kind of and take off calyx for crisp pears and prevent fungus-caused damage by disease and insect bactericidal agent; male and female can be changed in pears bloom process; better growing conditions is provided to fruit tree in late growing stage; form a kind of protective layer the absorption of cauline leaf limb, effectively prevent the infringement of various fungi.

The invention is characterized in and be made up of following component: 15-25 part Difenoconazole, 25-35 part propiconazole, 3-4 part polyoxyethylene nonylphenol ether NP15,6-8 part emulsifier 1601,2-4 part anhydrous sorbitol laurate, 1-2 part emulsifier 500#, 15-20 part toluene, deionized water 20 parts.

In concrete enforcement, former for liquid dose and water are mixed by 1:8500-12000 and makes water soluble preparation.

preparation method:

By above-mentioned parts by weight by Difenoconazole, propiconazole, polyoxyethylene nonylphenol ether NP15, emulsifier 1601, anhydrous sorbitol laurate, emulsifier 500#, toluene, deionized water mixes, and stir to obtain former dose of liquid.

Described Difenoconazole, chemical name: suitable, the chloro-4-of trans-3-[4-methyl-2-1H-1,2,4-triazol-1-yl methyl)-1,3-bis-mute pentane-2-base) phenyl 4-chlorphenyl ether is (suitable, inverse proportion is about 45:55), have absorption in height, be sterol demethylation inhibitors, fungicidal spectrum is wide.Leaf surface treatment or seed treatment can improve output and the guaranteed quality of crop, have lasting protection and therapeutic activity to various fungi.

Described propiconazole; chemical name: 1-[2-(2; 4-dichlorophenyl)-4 propyl group-DOX-2-ylmethyl]-1H-1,2; 4; there is protection and the systemic fungicide of therapeutic action, can be absorbed by root, stem, leaf portion, and can soon in plant strain body on conduct; the disease that control sac fungi, basidiomycetes and imperfect fungus cause, also can play main de-calyx effect in this compound drug.

Described polyoxyethylene nonylphenol ether NP15: chemistry alkylphenol polyoxyethylene (NPEO) by name, chemical structural formula C9H19C6H4 (OCH2CH2) nOH, emulsifiability is excellent, at diluted acid, diluted alkaline, rare salting liquid kind stable chemical nature; Mix with anion and other non-ionic surface active agents and most organic solvent, except display emulsifiability, also there is antistatic effect.

Described emulsifier 1601, the name of an article: 1601# triphenyl vinyl phenol polyoxyethylene poly-oxygen propylene aether, light yellow lotion, nonionic surface active agent, emulsification, wet performance are excellent, for composite blended pesticide emulsifier.

Described anhydrous sorbitol laurate, chemical name is anhydrous sorbitol laurate, also known as this dish-20, Si Ben-20, Arlacel-20, is called for short S-20, amber to sepia oily liquids, nontoxic, odorless; There is good emulsification, infiltration, dispersive property.

Described emulsifier 500#, i.e. agriculture breast 500# (No. 500, farm chemical emulgent), chemical composition calcium dodecyl benzene sulfonate, anion emulsifier and dispersant, be re-dubbed mixed emulsifier with other emulsifier, be generally used for organochlorine, organophosphorous pesticide and weed killer herbicide.

Described toluene, miscible active in most organic solvent chemical property such as benzene, alcohol, ethers, be organic solvent.

Beneficial effect: the present invention, several single composite reagent, is mainly used in de-calyx and the various fungi of effective prophylactic treatment, and before pear tree blooms, Hua Zhong, spends rear use; Be sprayed at petal in the crisp pear flower phase, effectively can take off calyx; Be sprayed at fruit at fruit growth period, blade face, trunk, root can form protective layer; effectively prevent Ascomycetes, Basidiomycetes and comprise Alternaria, Ascochyta, the mould genus of tail spore, Colletotrichum, ball seat Pseudomonas, Phoma, Ramularia, septoria musiva are looked steadily, the imperfect fungus of Venturia, Erysiphaceae, rest fungus, prevent the infringement of various fungi.

Embodiment

embodiment 1

Get 20g Difenoconazole, 30g propiconazole, 3g polyoxyethylene nonylphenol ether NP15,7g emulsifier 1601,3g anhydrous sorbitol laurate, 1g emulsifier 500#, 16g toluene mixes, and stir to obtain former dose of liquid.

Former for liquid dose and water 9500g are mixed and makes water soluble preparation.

Application method: bloom the first two to three days at pear flower, first add a small amount of water in sprayer, puts into former dose of above-mentioned liquid, and then adds the water of surplus, stir.

De-calyx effect: spray at petal pistil, after sprinkling, petal comes off, and significantly can see the effect of de-calyx.

embodiment 2

Get 25g Difenoconazole, 30g propiconazole, 3g polyoxyethylene nonylphenol ether NP15,7g emulsifier 1601,3g anhydrous sorbitol laurate, 1g emulsifier 500#, 20g toluene mixes, and stir to obtain former dose of liquid.

Former for liquid dose and water 10000g are mixed and makes water soluble preparation.

Application method: first add a small amount of water in sprayer, puts into former dose of above-mentioned liquid, and then adds the water of surplus, stir and can be sprayed at pear tree branches and leaves, fruit, trunk, root.

Therapeutic action: can effectively kill various fungi; form the infringement that protective layer effectively can resist various fungi; there is interior absorption, to Ascomycetes, Basidiomycetes and comprise Alternaria, Ascochyta, the mould genus of tail spore, Colletotrichum, ball seat Pseudomonas, Phoma, Ramularia, Septoria, the imperfect fungus of Venturia, Erysiphaceae, Uredinales and some pass pathogen and have lasting protection and treatment.

Claims

1. one kind takes off calyx for crisp pears and prevents fungus-caused damage by disease and insect bactericidal agent, it is characterized in that, be made up of following component: 15-25 part Difenoconazole, 25-35 part propiconazole, 3-4 part polyoxyethylene nonylphenol ether NP15,6-8 part emulsifier 1601,2-4 part anhydrous sorbitol laurate, 1-2 part emulsifier 500#, 15-20 part toluene, 20 parts of deionized waters.

2. taking off calyx for crisp pears prevents fungus-caused damage by disease and insect bactericidal agent as claimed in claim 1, it is characterized in that: also comprise 8500-12000 part water.