CN101480179B - Pesticide capsule preparation for preventing and treating nematode and soil-borne disease - Google Patents
Pesticide capsule preparation for preventing and treating nematode and soil-borne disease Download PDFInfo
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- CN101480179B CN101480179B CN2008100009833A CN200810000983A CN101480179B CN 101480179 B CN101480179 B CN 101480179B CN 2008100009833 A CN2008100009833 A CN 2008100009833A CN 200810000983 A CN200810000983 A CN 200810000983A CN 101480179 B CN101480179 B CN 101480179B
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Abstract
The invention relates to a method for processing and manufacturing soil fumigant iodomethane (chemical formula: CH3I) capsule preparation. The compound is suitable for preventing root-knot nematodes and other soil nematodes on crops, such as beans, fruits including strawberries in orchards and grapes in vineyards, flowers, vegetables including asparagus, celery, carrots and sweet potatoes, Chinese medicinal herbs, and the like and can prevent soil-borne pathogens to a certain extent.
Description
Technical field
The present invention relates to utilize compound iodomethane (general iodomethane by name, chemical formula CH
3I) root-knot nematode and other soil nematodes on control vegetables, strawberry, flowers, the crops such as protection ground such as melon, this compound has the good restraining effect to soil-borne pathogen sickle-like bacteria (Fusarium spp); Soil-borne pathogens such as corruption mould (Pythium spp), epidemic disease mould (Phytophthora spp) genus also there is certain control efficiency.Specific practice is that this compound is processed into capsule formulation, is used for the field and uses.
Background technology
Soil-borne disease is to be infected by the pathogen of surviving in the soil, caused one type of plant disease.On vegetables, melon and fruit, ornamental plant, forest, take place seriously, especially harm is serious on protection ground crop.In recent years, along with agricultural production and development of rural economy, protection ground, greenhouse crops planting area enlarges year by year, like 2,000,000 hectares of protection ground vegetables areas.And protection ground cultivation is as an important agricultural measures of increasing farmers' income, being changed to modern agriculture by traditional farming; To continue fast development in future, the crop of cultivation also will be developed to directions such as flowers, melon and fruit, nursery, Chinese herbal medicines by current vegetables, strawberry.The development of green house also provides adapt circumstance for the generation of soil-borne disease, development, cultivate 3-5 usually after, the yield and quality of crop is seriously influenced, and generally causes underproduction 20%-40%, the serious underproduction is 60% or more even have no harvest.Along with the green house cultivation continues the cultivation year after year of expansion and high added value crop, the problem of soil-borne disease is more and more outstanding.
Traditional method of preventing and treating soil-borne disease has breeding for disease resistance, grafting, implementation crop rotation, ploughs deeply, root etc. is irritated in soil removal and replacement, chemical pesticide.But because the soil finite sum is carried out intensive cropping, crop rotation is difficult to implement.The kind of anti-multiple soil-borne disease and stock are difficult to cultivate.Plough deeply with soil removal and replacement infeasible economically.It is limited that chemical pesticide is irritated the root effect, and need a large amount of medicaments, is prone to cause residue of pesticide to exceed standard and groundwater contamination.Current effective method is with the sterilization of Celfume (methyl bromide) soil-fumigating, and this technology can be eliminated nematode in the soil, fungi, insect, weeds etc. well, and crop yield is remarkable, welcome by the peasant.But the material because methyl bromide damages the ozone layer is classified as controlled substance by Montreal protocol, will ban use of in 2015.So methyl bromide soil-fumigating sterilization substitute technology is sought in research as early as possible, just becomes work highly significant in environmental protection and the agricultural production, this research launches under this background just.
Draw through experiment: iodomethane has excellent control efficiency to nematode in the soil, and soil-borne disease also had a good control efficiency.The conventional formulation of iodomethane is a missible oil, uses inconvenience, and is because the iodomethane volatility is extremely strong, big for environment pollution when using simultaneously, influences the healthy of dispenser personnel and surrounding resident.Iodomethane is processed capsule preparations in the present invention so that the use of peasant's safety, science, and reduces the pollution to environment.
Summary of the invention
The technical scheme that the present invention adopts is: a kind of capsule preparations process technology of preventing and treating the agricultural chemicals of nematode, soil-borne disease is characterized in that: (a) pesticide active ingredient is iodomethane (general iodomethane by name, chemical formula CH
3I); Weight percentage is 80%-95%; (b) the capsule coating material is some or a mixture that certain is several in melamine resin, Lauxite, gelatin, the gum Arabic, and weight percentage is 1%-20%, and weight percentage is 1%-20%; (c) capsule be shaped as circle, olive shape, ellipse, its size is 0.5-2cm
3, single capsules weight is 0.2-10g.
Concrete preparation method of the present invention is: at first the former medicine of the preparation granulator of packing into, granulate according to the capsules weight that designs with ready coating material then, follow dry solidification, quality inspection, finished product.
Embodiment
The present invention further specify below through embodiment in order to explain better.But what it should be appreciated by those skilled in the art is that the application not merely is limited to the scope of following embodiment.
Examples of implementation
98% pesticide original medicine A 2.0 gram, melamine resin, Lauxite, gelatin, gum Arabic is single or mixture 0.2 gram.Can be processed into the iodomethane capsule by Fig. 1 technological process of production.
Annex one:
The iodomethane capsule preparations is measured the result to soil nematodes and pathogen virulence
1, test material:
The former medicine of iodomethane Beijing chemical reagents corporation
2. test method:
2.1 dispenser
We choose in the PVC pillar (diameter is 30cm, height 105cm) that 1 iodomethane capsule is placed on the soil sample that the band pathogen adopting from Guan County, Hebei and nematode are housed in process of the test, and the position of capsule placement is at the following 30cm of soil table place.Then mouth is sealed with plastic film, be placed in the plastic tunnel, maintain the temperature at about 25 ℃, fumigation time is 15 days.
2.2 sampling
We begin sampling after the off-test from soil table center, and every 5cm is one deck.Vertically get the pillar bottom successively downwards, successively to nematode in the sample and Fusarium, phytophthora belongs to pathogen and carries out separation determination after the sampling always.Take by weighing the 100g sample during nematode separation determination; Pathogen takes by weighing the 15g sample when measuring
3. result and analysis
3.1 to nematode determination of activity result
Table 1, the composite capsule of iodomethane and chloropicrin is longitudinal diffusion nematode testing result in soil
| Numbering | Degree of depth cm | Borer population alive | Dead borer population | Total borer population | Worm rate alive | Lethality | Corrected mortality |
| ?1 | 25 | ?0 | ?100 | ?100 | ?0.00 | ?100.00 | ?100.00 |
| ?2 | 20 | ?0 | ?75 | ?75 | ?0.00 | ?100.00 | ?100.00 |
| ?3 | 15 | ?0 | ?25 | ?25 | ?0.00 | ?100.00 | ?100.00 |
| ?4 | 10 | ?0 | ?75 | ?75 | ?0.00 | ?100.00 | ?100.00 |
| ?5 | 5 | ?0 | ?100 | ?100 | ?0.00 | ?100.00 | ?100.00 |
| ?6 | 0 | ?0 | ?450 | ?450 | ?0.00 | ?100.00 | ?100.00 |
| ?7 | -5 | ?0 | ?175 | ?175 | ?0.00 | ?100.00 | ?100.00 |
| ?8 | -10 | ?0 | ?325 | ?325 | ?0.00 | ?100.00 | ?100.00 |
| ?9 | -15 | ?0 | ?250 | ?250 | ?0.00 | ?100.00 | ?100.00 |
| ?10 | -20 | ?0 | ?250 | ?250 | ?0.00 | ?100.00 | ?100.00 |
| ?11 | -25 | ?0 | ?225 | ?225 | ?0.00 | ?100.00 | ?100.00 |
| ?12 | -30 | ?0 | ?200 | ?200 | ?0.00 | ?100.00 | ?100.00 |
| ?13 | -35 | ?0 | ?325 | ?325 | ?0.00 | ?100.00 | ?100.00 |
| ?14 | -40 | ?0 | ?250 | ?250 | ?0.00 | ?100.00 | ?100.00 |
| ?15 | -45 | ?0 | ?200 | ?200 | ?0.00 | ?100.00 | ?100.00 |
| ?16 | -50 | ?0 | ?450 | ?450 | ?0.00 | ?100.00 | ?100.00 |
| ?17 | -55 | ?0 | ?250 | ?250 | ?0.00 | ?100.00 | ?100.00 |
| ?18 | -60 | ?0 | ?300 | ?300 | ?0.00 | ?100.00 | ?100.00 |
| ?19 | -65 | ?0 | ?475 | ?475 | ?0.00 | ?100.00 | ?100.00 |
| ?20 | -70 | ?0 | ?300 | ?300 | ?0.00 | ?100.00 | ?100.00 |
| ?21 | -75 | ?0 | ?350 | ?350 | ?0.00 | ?100.00 | ?100.00 |
Annotate: the place is laid for capsule in " 0 "; "+" is dispenser point top distance; "-" is dispenser point below distance.
It is local to find out that from last table this medicament can penetrate apart from the following 75cm of dispenser point, and the preventive effect of nematode is all reached 100%, possesses characteristics efficient, strong penetrating power, can be as the alternative kind of methyl bromide.
3.2 pathogen in the soil is measured the result
The composite capsule of table 2 iodomethane and chloropicrin is longitudinal diffusion sickle-like bacteria testing result in soil
| Numbering | Degree of depth cm | Repeat I | Repeat II | Repeat III | Clump count/100g soil | Preventive effect |
| ?1 | 25 | ?30 | ?26 | ?24 | ?533 | ?67.21 |
| ?2 | 20 | ?25 | ?19 | ?32 | ?507 | ?68.85 |
| ?3 | 15 | ?22 | ?26 | ?18 | ?440 | ?72.95 |
| ?4 | 10 | ?20 | ?20 | ?18 | ?387 | ?76.23 |
| ?5 | 5 | ?21 | ?19 | ?13 | ?353 | ?78.28 |
| ?6 | 0 | ?20 | ?19 | ?19 | ?387 | ?76.23 |
| ?7 | -5 | ?25 | ?24 | ?31 | ?533 | ?67.21 |
| ?8 | -10 | ?16 | ?17 | ?15 | ?320 | ?80.33 |
| ?9 | -15 | ?15 | ?19 | ?11 | ?300 | ?81.56 |
| ?10 | -20 | ?19 | ?19 | ?19 | ?380 | ?76.64 |
| ?11 | -25 | ?20 | ?22 | ?23 | ?433 | ?73.36 |
| ?12 | -30 | ?22 | ?20 | ?20 | ?413 | ?74.59 |
| ?13 | -35 | ?22 | ?28 | ?26 | ?507 | ?68.85 |
| ?14 | -40 | ?14 | ?30 | ?27 | ?473 | ?70.90 |
| ?15 | -45 | ?18 | ?19 | ?16 | ?353 | ?78.28 |
| ?16 | -50 | ?18 | ?38 | ?34 | ?600 | ?63.11 |
| ?17 | -55 | ?34 | ?36 | ?38 | ?720 | ?55.74 |
| ?18 | -60 | ?38 | ?34 | ?50 | ?813 | ?50.00 |
| ?19 | -65 | ?52 | ?62 | ?42 | ?1040 | ?36.07 |
| ?20 | -70 | ?48 | ?44 | ?66 | ?1053 | ?35.25 |
| ?21 | -75 | ?58 | ?44 | ?64 | ?1107 | ?31.97 |
Annotate: the place is laid for capsule in " 0 "; "+" is dispenser point top distance; "-" is dispenser point below distance.
The composite capsule of table 3 iodomethane and chloropicrin is longitudinal diffusion epidemic disease enzyme bacterium testing result in soil
| Numbering | Degree of depth cm | Repeat I | Repeat II | Repeat III | Clump count/100g soil | Preventive effect |
| ?1 | 25 | ?92 | ?88 | ?112 | ?1947 | ?38.66 |
| ?2 | 20 | ?100 | ?96 | ?92 | ?1920 | ?39.50 |
| ?3 | 15 | ?106 | ?114 | ?106 | ?2173 | ?31.51 |
| ?4 | 10 | ?108 | ?104 | ?104 | ?2107 | ?33.61 |
| ?5 | 5 | ?92 | ?84 | ?92 | ?1787 | ?43.70 |
| ?6 | 0 | ?108 | ?104 | ?106 | ?2120 | ?33.19 |
| ?7 | -5 | ?76 | ?92 | ?104 | ?1813 | ?42.86 |
| ?8 | -10 | ?60 | ?72 | ?92 | ?1493 | ?52.94 |
| ?9 | -15 | ?84 | ?88 | ?120 | ?1947 | ?38.66 |
| ?10 | -20 | ?104 | ?140 | ?132 | ?2507 | ?21.01 |
| ?11 | -25 | ?132 | ?132 | ?152 | ?2773 | ?12.61 |
| ?12 | -30 | ?112 | ?112 | ?132 | ?2373 | ?25.21 |
| ?13 | -35 | ?120 | ?120 | ?110 | ?2333 | ?26.47 |
| ?14 | -40 | ?100 | ?136 | ?120 | ?2373 | ?25.21 |
| ?15 | -45 | ?132 | ?124 | ?124 | ?2533 | ?20.17 |
| ?16 | -50 | ?132 | ?148 | ?148 | ?2853 | ?10.08 |
| ?17 | -55 | ?116 | ?148 | ?136 | ?2667 | ?15.97 |
| ?18 | -60 | ?126 | ?120 | ?124 | ?2467 | ?22.27 |
| ?19 | -65 | ?124 | ?156 | ?172 | ?3013 | ?5.04 |
| ?20 | -70 | ?138 | ?180 | ?120 | ?2920 | ?7.98 |
| ?21 | -75 | ?96 | ?124 | ?144 | ?2427 | ?23.53 |
Annotate: the place is laid for capsule in " 0 "; "+" is dispenser point top distance; "-" is dispenser point below distance.
From table 2, can find out in the table 3 that this medicament has stronger penetration capacity, preventive effect can reach more than 50% apart from the following 50cm of dispenser point place for sickle-like bacteria, sickle-like bacteria is had preventive effect preferably, but for phytophthora, control efficiency is relatively poor.
4. conclusion
The iodomethane capsule has stronger preventive effect to nematode and pathogen, and has stronger penetration capacity, has possessed the most important condition as fumigant.This formulation is easy to use, safe in addition, environmental pollution is little, is after eliminating methyl bromide, as effective substitute of soil disinfectant.
Accompanying drawing 1 has been listed microcapsule formulations technological process of production figure.
Claims (1)
1. the purposes that the iodomethane capsule preparations is used to prevent and treat phytophthora or sickle-like bacteria is characterized in that, said iodomethane capsule preparations is made up of iodomethane and capsule coating material; The capsule coating material is some or a mixture that certain is several in melamine resin, Lauxite, gelatin, the gum Arabic; The capsule coating material accounts for the 1-20% of iodomethane capsule preparations gross weight; The iodomethane capsule preparations be shaped as circle, olive shape or ellipse, its size is 0.2-5cm
3, its single weight is 0.2-10g.
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| CN2008100009833A CN101480179B (en) | 2008-01-11 | 2008-01-11 | Pesticide capsule preparation for preventing and treating nematode and soil-borne disease |
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| CN2008100009833A CN101480179B (en) | 2008-01-11 | 2008-01-11 | Pesticide capsule preparation for preventing and treating nematode and soil-borne disease |
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| CN101480179A CN101480179A (en) | 2009-07-15 |
| CN101480179B true CN101480179B (en) | 2012-03-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102657225B (en) * | 2012-04-28 | 2014-12-24 | 乐陵市农博士复混肥有限公司 | Insecticide for killing crop nematodes |
| BR112014026614A2 (en) | 2012-04-30 | 2017-06-27 | Dow Agrosciences Llc | pesticide administration vehicles |
| US9492579B2 (en) * | 2012-10-22 | 2016-11-15 | The Procter & Gamble Company | Psyllium fumigated with methyl bromide |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261542A (en) * | 1999-01-21 | 2000-08-02 | 陶俊德 | Spreading method for soil sterilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261542A (en) * | 1999-01-21 | 2000-08-02 | 陶俊德 | Spreading method for soil sterilizer |
Non-Patent Citations (1)
| Title |
|---|
| 范昆.溴甲烷土壤消毒替代品的研究进展.《世界农药》.2006,第28卷(第2期),45-48. * |
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Granted publication date: 20120321 Termination date: 20190111 |