Method for controlling plant disease in ornamental bulbous plants.

专利摘要:

公开号:NL1039387A
申请号:NL1039387
申请日:2012-02-17
公开日:2012-09-04
发明作者:Norifumi Yasuda；Atsushi Fukuchi
申请人:Sumitomo Chemical Co；
IPC主号:

专利说明:

METHOD FOR CONTROLLING PLANT DISEASE IN ORNAMENTAL BULBOUS PLANTS
Technical Field
The present invention relates to a method for controlling plant disease in ornamental bulbous plants.
Background Art A large number of chemical compounds for controlling plant diseases have heretofore been developed and provided for practical use.
Tolclofos-methyl and azoxystrobin are known as compounds with plant disease controlling activity (see, The Pesticide Manual Thirteenth Edition (published by British Crop Protection Council)).
However, these compounds are not satisfactory in some cases, and excellent methods have been needed for controlling plant diseases in accordance with the situation.
Disclosure of Invention
Thus, the present invention is claimed as follows: [1] A method for controlling plant diseases in an ornamental bulbous plant, comprising the steps of: treating, with an effective amount of tolclofos-methyl and azoxystrobin, furrows with the depth of 1 to 40 cm and the width of 1 to 50 cm in the soil of a cultivation area for the ornamental bulbous plant; and planting bulbs of the ornamental bulbous plant in the furrows .
[2] The method of [1] , wherein the total amount of tolclofos-methyl and azoxystrobin is from 1 to 1000 kg per 10000 m2 of a cultivation area for an ornamental bulbous plant.
[3] The method of [1] or [2], wherein the amount of azoxystrobin is from 1 to 1000 parts by weight relative to 100 parts by weight of tolclofos-methyl.
[4] The method of any one of [1] to [3], wherein the ornamental bulbous plant is selected from the group consisting of tulip, lily, gladiolus and hyacinth.
[5] The method of any one of [1] to [3] , wherein the ornamental bulbous plant is tulip.
[6] A method for cultivating an ornamental bulbous plant, comprising the steps of: treating, with tolclofos-methyl and azoxystrobin in an amount effective for controlling plant diseases, furrows with the depth of 1 to 40 cm and the width of 1 to 50 cm in the soil of a cultivation area for the ornamental bulbous plant; planting bulbs of the ornamental bulbous plant; and then filling, with soil, the furrows where bulbs has been planted.
[7] The method of [6], wherein the total amount of tolclofos-methyl and azoxystrobin is from 1 to 1000 kg per 10000 m2 of a cultivation area for an ornamental bulbous plant.
[8] The method of [6] or [7], wherein the amount of azoxystrobin is from 1 to 1000 parts by weight relative to 100 parts by weight of tolclofos-methyl.
[9] The method of any one of [6] to [8], wherein the ornamental bulbous plant is a plant selected from the group consisting of tulip, lily, gladiolus and hyacinth.
[10] The method of any one of [6] to [8], wherein the ornamental bulbous plant is tulip
The present invention can control plant diseases in ornamental bulbous plants and is useful for growing ornamental bulbous plants.
Embodiment of the Invention
The method according to the present invention for controlling plant diseases comprises the steps of: treating, with an effective amount of tolclofos-methyl and azoxystrobin, furrows with the depth of 1 to 40 cm and the width of 1 to 50 cm in the soil of a cultivation area for the ornamental bulbous plant; and planting bulbs of the ornamental bulbous plant in the treated furrows.
Tolclofos-methyl and azoxystrobin are described, for example, on pages 979 and 52 of The Pesticide Manual, Thirteenth Edition (published by British Crop Protection Council).
These compounds may be commercially available formulations or produced using a known process. Alternatively, a commercially available formulation containing tolclofos-methyl and/or azoxystrobin may be used in the present invention.
The amount of tolclofos-methyl to be used in the present invention is generally from 1 to 1000 parts and preferably from 10 to 500 parts by weight relative to 100 parts by weight of tolclofos-methyl.
For the present invention, tolclofos-methyl and azoxystrobin may be simply admixed or combined. However, in general, as tolclofos-methyl and azoxystrobin, a formulation which contains an azoxystrobin and a formulation which contains tolclofos-methyl are admixed or combined, or a formulation which contains tolclofos-methyl and azoxystrobin are used.
Such formulations are formulated into oil solutions, emulsions, flowables, water-dispersible powders, water-dispersible granules, dust powders, granules and the like which can be obtained by mixing tolclofos-methyl and/or azoxystrobin with an inert carrier and, if necessary, adding a surfactant or other formulation additives. Such formulations contain an active compound(s), i.e., tolclofos-methyl and/or azoxystrobin in the total amount of usually from 0.1 to 99% and preferably from 0.2 to 90% by weight of the formulations.
Solid carriers used for the formulation include fine powders or granules composed of minerals such as kaolin clay, attapulgite clay, bentonite, montmorillonite, acid white clay, pyrophyllite, talc, diatomaceous earth and calcite; natural organic materials such as corn cob powder and walnut husk powder; synthetic organic materials such as urea; salts such as calcium carbonate and ammonium sulfate; or synthetic inorganic materials such as synthetic hydrated silicon oxide. Liquid carriers include aromatic hydrocarbons such as xylene, alkylbenzene and methylnaphthalene; alcohols such as 2-propanol, ethylene glycol, propylene glycol and ethylene glycol monoethyl ether; ketones such as acetone, cyclohexanone and isophorone; vegetable oil such as soybean oil and cotton seed oil; petroleum aliphatic hydrocarbons; esters; dimethylsulfoxide; acetonitrile; and water.
Surfactants include anionic surfactants, such as alkyl sulfate ester salts, alkyl aryl sulfonate salts, dialkyl sulfosuccinate salts, polyoxyethylene alkyl aryl ether phosphate ester salts, lignosulfonate salts and naphthalene sulfonate formaldehyde polycondensates; and non-ionic surfactants such as polyoxyethylene alkyl aryl ethers, polyoxyethylene-alkylpolyoxypropylene block copolymers and sorbitan fatty acid esters; and cationic surfactants such as alkyltrimethylammonium salts .
Other formulation additives include water-soluble polymers, such as polyvinyl alcohol and polyvinylpyrrolidone; polysaccharides such as Arabic gum, alginic acid and salts thereof, CMC (carboxymethyl-cellulose) and Xanthan gum; inorganic materials such as aluminum magnesium silicate and alumina sol; preservatives; coloring agents; and stabilizing agents such as PAP (acid phosphate isopropyl) and BHT.
Ornamental bulbous plants to be used in the method of the present invention for controlling plant diseases include Lily (Lilium spp), Tulip (Tulipa gesneriana), Hyacinth (Hyacinthus orientalis), Muscari (Muscari latifolium), Allium (Allium cristophii), Tritoma (Kniphofia spp), colchicum (Colchicum autumnale), Pineapple lily (Eucomis autumnalis), Sandasonia (Sandersonia aurantiaca) , Gloriosa (Gloriosa superba), Narcissus (Narcissus spp), Daffodil (Narcissus pseudonarcissus), Amaryllis (Hippeastrum spp), snowdrop (Galanthus spp), snowflake (Leucojum aestivum), Diamond lily (Bodenii Nerine), Zefiransasu (Zephyranthes carinata), licorice (Lycoris spp), Amazon lily (Eucharis grandiflora), Crocus (Crocus spp), Gladiolus (Gladiolus spp), Montbretia (Crocosmia * crocosmiiflora), German iris (Iris spp), Saffron (Saffron crocus), Dahlias (dahlias spp), Ranunculus (Ranunculus asiaticus), Curcuma (Curcuma spp), Oxalis (Oxalis deppei), Canna (Canna indica), and Cyclamen (Cyclamen persicum).
Among them, a plant selected from the group consisting of tulip, lily, gladiolus and hyacinth is preferred for the present invention.
Plant diseases that can be controlled by the present invention include soil-borne diseases, such as Bulb rot (Fusarium spp. Fusarium oxysporum, Fusarium solani, Rhizopus spp. Rhizopus necans, Rhizopus stolonifer), Damping off (Rhizoctonia spp. Rhizoctonia solani), Bare batch, brown batch, Leaf rot (Rhizoctonia spp. Rhizoctonia solani), Bulb-coat rot (Rhizoctonia spp. Rhizoctonia solani), Sclerotial blight (Sclerotium spp. Sclerotium rolfaii), and Crown rot (Pythium spp. Pythium irregulare, P.spinosum, P. ultimum).
In the method of the present invention, the soil of a cultivation area for ornamental bulbous plants is provided with furrows which have been made by using a conventional furrow opener.
The size of the furrows is appropriately determined depending on factors such as the varieties of the ornamental bulbous plants to be grown and the size of the bulbs. The furrows has the following size; the depth is from 1 to 40 cm, preferably from 5 to 15 cm, and the width is from 1 to 50 cm, preferably from 5 to 30 cm.
The method for treating such furrows with tolclofos-methyl and azoxystrobin may be implemented by spraying or injecting tolclofos-methyl and azoxystrobin, either in combination or separately, into the furrows prior to planting ornamental bulbous plants. In this embodiment, tolclofos-methyl and azoxystrobin may be independently or together in the formulated form of an oil solution, water-dispersible powders, water-dispersible granules, dust powders, granules, an emulsion or a flowable, or a water dilution thereof. After the treatment, bulbs are placed in the furrows and then covered with soil. By conducting these steps, plant diseases caused by soil-borne pathogens that may occur during growth of the plants is controlled so that efficient cultivation of ornamental bulbous plants is possible.
In the present invention, prior to planting of bulbs of ornamental bulbous plants in the treated furrows, the above-described treatment with tolclofos-methyl and azoxystrobin may be carried out simultaneously with providing furrows in the soil of the cultivation area for ornamental bulbous plants by using a conventional furrow opener.
The method of the present invention can be carried out by spraying or injecting tolclofos-methyl and azoxystrobin, either in combination or separately, into the furrows after planting bulbs of ornamental bulbous plants into the furrows provided in a cultivation area for ornamental bulbous plants. In case of treatment with tolclofos-methyl and azoxystrobin after planting the bulbs into the furrows, tolclofos-methyl and azoxystrobin may be independently or together in the formulated form of an oil solution, water-dispersible powders, water-dispersible granules, dust powders, granules, an emulsion or a flowable, or a water dilution thereof.
After the above-mentioned steps of treating the furrows and planting bulbs of ornamental bulbous plants, the bulbs are covered with soil.
Such method may provide efficient cultivation of ornamental bulbous plants by controlling plant diseases caused by soil-borne pathogens that may occur during growth of the plants.
In the present invention, although the treatment amount of tolclofos-methyl and azoxystrobin is appropriately determined depending on the species of ornamental bulbous plants and the size of the bulbs, the type and the degree of occurrence of plant diseases, the forms of tolclofos-methyl and azoxystrobin to be used, the timing of the treatment, and weather conditions, the total amount of tolclofos-methyl and azoxystrobin is generally from 1 to 1000 kg, preferably from 10 to 500 kg per 10000 m2 of the cultivation area for ornamental bulbous plants. Or depending on the above-mentioned conditions, the total amount is preferably from 1 to 100kg, more preferably from 1.5 to 50kg per 10000 m2 of the cultivation area for ornamental bulbous plants.
Examples
The present invention is further described in detail below by reference, for example, to test examples. However, the present invention is not limited to the following examples.
In the following examples, unless otherwise specified, the term "part" refers to "part by weight."
Initially, reference formulation examples are shown below.
Reference Formulation Example 1
An emulsion is obtained by well mixing 2.5 parts of tolclofos-methyl, 1.25 parts of azoxystrobin, 14 parts of polyoxyethylene styryl phenyl ether, 6 parts of calcium dodecylbenzenesulfonate and 76.25 parts of xylene.
Reference Formulation Example 2 A flowable formulation is obtained by mixing 5 parts of tolclofos-methyl, 5 parts of azoxystrobin, 35 parts of a mixture of white carbon and a polyoxyethylene alkyl ether sulfate ammonium salt (weight ratio 1:1) and 55 parts of water, followed by pulverizing the mixture by wet grinding.
Reference Formulation Example 3 A flowable formulation is obtained by mixing 10 parts of tolclofos-methyl, 10 parts of azoxystrobin, 1.5 parts of sorbitan trioleate and 23.5 parts of an aqueous solution containing 2 parts of polyvinyl alcohol, then by pulverizing the mixture by wet grinding, further by adding 45 parts of an aqueous solution containing 0.05 part of Xanthan gum and 0.1 part of aluminum magnesium silicate to the mixture, still further by adding 10 parts of propylene glycol, followed by blending the resulting mixture by stirring.
Reference Formulation Example 4 A flowable formulation is obtained by mixing 20 parts of tolclofos-methyl, 5 parts of azoxystrobin, 1.5 parts of sorbitan trioleate and 28.5 parts of an aqueous solution containing 2 parts of polyvinyl alcohol, then by pulverizing the mixture by wet grinding, further by adding 45 parts of an aqueous solution containing 0.05 part of Xanthan gum and 0.1 part of aluminum magnesium silicate to the mixture, still further by adding 10 parts of propylene glycol, followed by blending the resulting mixture by stirring.
Reference Formulation Example 5
Forty parts of tolclofos-methyl, 5 parts of azoxystrobin, 5 parts of propylene glycol (manufactured by Nacalai Tesque, INC.), 5 parts of Soprophor FLK (manufactured by Rhodia Nicca, Ltd.), 0.2 part of an anti-form C emulsion (manufactured by Dow Corning Corporation), 0.3 part of proxel GXL (manufactured by Arch Chemicals, Inc.) and 49.5 parts of ion-exchange water are mixed to prepare a bulk slurry. To 100 parts of the slurry, 150 parts of glass beads (Φ=1 mm) are added, and the slurry is ground for 2 hours while it is cooled with coolant water. After the grinding, the glass beads are removed by filtration, thereby obtaining a flowable formulation.
Reference Formulation Example 6
An AI premix is obtained by mixing 50 parts of
tolclofos-methyl, 0.5 part of azoxystrobin, 38.5 parts of NN kaolin clay (manufactured by Takehara Chemical Industrial Co., Ltd.), 10 parts of Morwet D425 and 1.5 parts of Morwer EFW
(manufactured by Akzo Nobel N.V.). The premix is pulverized with a jet mill to obtain powder.
Reference Formulation Example 7 A granule was obtained by well grinding and mixing 1 part of tolclofos-methyl, 1 part of azoxystrobin, 1 part of synthetic hydrated silicon oxide, 2 parts of calcium lignin sulfonate, 30 parts of bentonite and 65 parts of kaolin clay, and then by adding water to well knead the mixture, followed by granulation and drying.
Reference Formulation Example 8 A water-dispersible powder is obtained by well grinding and mixing 40 parts of tolclofos-methyl, 1 part of azoxystrobin, 3 parts of calcium lignin sulfonate, 2 parts of sodium lauryl sulfate and 54 parts of synthetic hydrated silicon oxide.
Reference Formulation Example 9 A powder is obtained by well grinding and mixing 1 part of tolclofos-methyl, 10 parts of azoxystrobin, 79 parts of kaolin clay, and 10 parts of talc.
Reference Formulation Example 10
An emulsion is obtained by well mixing 2 parts of tolclofos-methyl, 0.25 part of azoxystrobin, 14 parts of polyoxyethylene styryl phenyl ether, 6 parts of calcium dodecylbenzenesulfonate and 77.75 parts of xylene.
Reference Formulation Example 11 A flowable formulation is obtained by mixing 10 parts of tolclofos-methyl, 2.5 parts of azoxystrobin, 1.5 parts of sorbitan trioleate and 30 parts of an aqueous solution containing 2 parts of polyvinyl alcohol, then by pulverizing the mixture by wet grinding, further by adding 47.5 parts of an aqueous solution containing 0.05 part of Xanthan gum and 0.1 part of aluminum magnesium silicate to the mixture, still further by adding 10 parts of propylene glycol, followed by blending the resulting mixture by stirring.
Reference Formulation Example 12 A granule was obtained by well grinding and mixing 20 parts of tolclofos-methyl, 1 part of azoxystrobin, 1 part of synthetic hydrated silicon oxide, 2 parts of calcium lignin sulfonate, 30 parts of bentonite and 47 parts of kaolin clay, and then by adding water to well knead the mixture, followed by granulation and drying.
Reference Formulation Example 13 A water-dispersible powder is obtained by well grinding and mixing 5 parts of tolclofos-methyl, 10 parts of azoxystrobin, 5 parts of calcium lignin sulfonate, 3 parts of sodium lauryl sulfate and 77 parts of synthetic hydrated silicon oxide.
Next, test examples are shown below.
Test Example 1 A test solution is prepared by mixing tolclofos-methyl 50% (w/v) flowable (Product name: Rizolex® Flowable;
Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name: Amistar®20 Flowable; Syngenta Japan K.K.) in water.
Filling a planter (size: 35cm χ 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm are made. One hundred (100) ml of test solution is injected to each furrow, per length 70 cm. The amount of the injected compound is shown in Table 1. Then 5 bulbs of tulip (variety "Angelique") are planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse.
(These tests are conducted twice, which are the treated plots).
On the other hand, cultivation is carried out as described above, except that the test solution is not injected into furrows (the untreated plots) .
After a predetermined time period, each of the treated and non-treated plots is observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence is calculated according to Equation 1 for each of the treated and untreated plots, and the disease control value is calculated according to Equation 2 for the treated plot.
Percentage disease incidence = (number of non-germinated bulbs + number of diseased plants)/ (total number of bulbs) x 100 (Equation 1)
Disease control value = (A-B)/ A x 100 (Equation 2), A: Percentage disease incidence in the untreated plot; B: Percentage disease incidence in the untreated plot
The results show that plant diseases are controlled in the treated plot.
Table 1
Test Example 2 A test solution was prepared by mixing tolclofos-methyl 50% (w/v) flowable (Product name: Rizolex® Flowable;
Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name: Amistar®20 Flowable; Syngenta Japan K.K.) in water. Filling a planter (size: 35cm χ 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm were made. One hundred (100) ml of test solution was injected to each furrow, per length 70 cm. The amount of the injected compound was shown in Table 2. Then 5 bulbs of tulip (variety "Angelique") were planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse.
(These tests are conducted twice, which are the treated plots).
On the other hand, cultivation was carried out as described above, except that the test solution was not injected into furrows (the untreated plots).
After a predetermined time period, about 8 weeks, each of the treated and non-treated plots was observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence was calculated according to Equation 1, shown in Test Example 1, for each of the treated and untreated plots, and the disease control value was calculated according to Equation 2, shown in Test Example 1, for the treated plot.
The results are shown in Table 2.
Table 2
Test Example 3 A test solution is prepared by mixing tolclofos-methyl 50% (w/v) flowable (Product name: Rizolex® Flowable;
Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name: Amistar®20 Flowable; Syngenta Japan K.K.) in water.
Filling a planter (size: 35cm χ 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm are made. One hundred (100) ml of test solution is injected to each furrow, per length 70 cm. The amount of the injected compound is shown in Table 1. Then 5 bulbs of lily (variety "Party Diamond") are planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse .
(These tests are conducted twice, which are the treated plots).
On the other hand, cultivation is carried out as described above, except that the test solution is not injected into furrows (the untreated plots).
After a predetermined time period, each of the treated and non-treated plots is observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence is calculated according to Equation 1, shown in Test Example 1, for each of the treated and untreated plots, and the disease control value is calculated according to Equation 2, shown in Test Example 1, for the treated plot.
The results show that plant diseases are controlled in the treated plot.
Table 3
Test Example 4 A test solution was prepared by mixing tolclofos-methyl 50% (w/v) flowable (Product name: Rizolex® Flowable;
Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name: Amistar®20 Flowable; Syngenta Japan K.K.) in water.
Filling a planter (size: 35cm χ 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm were made. One hundred (100) ml of test solution was injected to each furrow, per length 70 cm. The amount of the injected compound was shown in Table 2. Then 5 bulbs of lily (variety "Party Diamond") were planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse.
(These tests are conducted twice, which are the treated plots) .
On the other hand, cultivation was carried out as described above, except that the test solution was not injected into furrows (the untreated plots).
After a predetermined time period, about 15 weeks, each of the treated and non-treated plots was observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence was calculated according to Equation 1, shown in Test Example 1, for each of the treated and untreated plots, and the disease control value was calculated according to Equation 2, shown in Test Example 1, for the treated plot.
The results are shown in Table 4.
Table 4
Test Example 5 A test solution is prepared by mixing tolclofos- methyl 50% (w/v) flowable (Product name: Rizolex® Flowable;
Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name: Amistar®20 Flowable; Syngenta Japan K.K.) in water.
Filling a planter (size: 35cm * 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm are made. One hundred (100) ml of test solution is injected to each furrow, per length 70 cm. The amount of the injected compound is shown in Table 1. Then 5 bulbs of gladiolus (variety "Cayenne") are planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse.
(These tests are conducted twice, which are the treated plots).
On the other hand, cultivation is carried out as described above, except that the test solution is not injected into furrows (the untreated plots).
After a predetermined time period, each of the treated and non-treated plots is observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence is calculated according to Equation 1, shown in Test Example 1, for each of the treated and untreated plots, and the disease control value is calculated according to Equation 2, shown in Test Example 1, for the treated plot.
The results show that plant diseases are controlled in the treated plot.
Table 5
Test Example 6 A test solution was prepared by mixing tolclofos-methyl 50% (w/v) flowable (Product name: Rizolex® Flowable;
Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name: Amistar®20 Flowable; Syngenta Japan K.K.) in water.
Filling a planter (size: 35cm χ 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm were made. One hundred (100) ml of test solution was injected to each furrow, per length 70 cm. The amount of the injected compound was shown in Table 2. Then 5 bulbs of gladiolus (variety "Cayenne") were planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse.
(These tests are conducted twice, which are the treated plots) .
On the other hand, cultivation was carried out as described above, except that the test solution was not injected into furrows (the untreated plots).
After a predetermined time period, about 7 weeks, each of the treated and non-treated plots was observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence was calculated according to Equation 1, shown in Test Example 1, for each of the treated and untreated plots, and the disease control value was calculated according to Equation 2, shown in Test Example 1, for the treated plot.
The results are shown in Table 6.
Table 6
Test Example 7 A test solution is prepared by mixing tolclofos-methyl 50% (w/v) flowable (Product name: Rizolex® Flowable;
Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name Amistar®20 Flowable; Syngenta Japan K.K.) in water.
Filling a planter (size: 35cm * 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm are made. One hundred (100) ml of test solution is injected to each furrow, per length 70 cm. The amount of the injected compound is shown in Table 1. Then 5 bulbs of hyacinth (variety "Odysseus") are planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse.
(These tests are conducted twice, which are the treated plots).
On the other hand, cultivation is carried out as described above, except that the test solution is not injected into furrows (the untreated plots).
After a predetermined time period, each of the treated and non-treated plots is observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence is calculated according to Equation 1, shown in Test Example 1, for each of the treated and untreated plots, and the disease control value is calculated according to Equation 2, shown in Test Example 1, for the treated plot.
The results show that plant diseases are controlled in the treated plot.
Table 7
Test Example 8 A predetermined concentration of a test solution was prepared by mixing tolclofos-methyl 50% (w/v) flowable (Product name: Rizolex® Flowable; Sumitomo Chemical Co. Ltd.) and azoxystrobin 20% (w/w) flowable (Product name Amistar®20
Flowable; Syngenta Japan K.K.) in water.
Filling a planter (size: 35cm χ 65cm, depth 26 cm) with soil, furrows each with width 7cm, depth 10 cm and length 70 cm were made. One hundred (100) ml of test solution was injected to each furrow, per length 70 cm. The amount of the injected compound was shown in Table 2. Then 5 bulbs of hyacinth (variety "Odysseus") were planted in each of the treated furrows and then covered with soil, followed by being cultured in a glasshouse .
(These tests are conducted twice, which are the treated plots).
On the other hand, cultivation was carried out as described above, except that the test solution was not injected into furrows (the untreated plots).
After a predetermined time period, about 15 weeks, each of the treated and non-treated plots was observed for the presence or absence of germination and the emergence of disease in the sprouts. The percentage disease incidence was calculated according to Equation 1, shown in Test Example 1, for each of the treated and untreated plots, and the disease control value was calculated according to Equation 2, shown in Test Example 1, for the treated plot.
The results are shown in Table 8.
Table 8

权利要求:
Claims (10)
[1]
A method for controlling plant diseases in an ornamental bulb plant, comprising the following steps: treating, with an effective amount of tolclophos-methyl and azoxystrobin, from the front in the soil of an ornamental bulb growing area with a depth of 1 to 40 cm and a width of 1 to 50 cm; and planting bulbs of the ornamental bulb crop in the furrows.
[2]
The method as set forth in claim 1, wherein the total amount of tolclophos-methyl and azoxystrobin is from 1 to 1000 kg per 10,000 m2 of an ornamental bulb growing area.
[3]
The method as set forth in claim 1 or claim 2, wherein the amount of azoxystrobin is from 1 to 1000 parts by weight relative to 100 parts by weight of tolclophos-methyl.
[4]
The method as set forth in any one of claims 1 to 3, wherein the ornamental bulb is selected from the group consisting of: tulip, lily, gladiolus and hyacinth.
[5]
The method as set forth in any one of claims 1 to 3, wherein the ornamental bulb crop consists of tulips.
[6]
A method for growing an ornamental bulb plant, comprising the steps of: treating, with tolclophos-methyl and azoxystrobin in an amount effective for controlling plant diseases, from the front, with a depth of 1 to 40 cm and a width of 1 to 50 cm, in the bottom of an ornamental bulb growing area; planting bulbs from the ornamental bulb crop; and then filling with soil from the front where the bulbs are planted.
[7]
The method as set forth in claim 6, wherein the total amount of tolclophos-methyl and azoxystrobin is from 1 to 1000 kg per 10,000 m2 of an ornamental bulb growing area.
[8]
The method as set forth in claim 6 or claim 7, wherein the amount of azoxystrobin is from 1 to 1000 parts by weight relative to 100 parts by weight of tolclophos-methyl.
[9]
The method as set forth in any one of claims 6 to 8, wherein the ornamental bulb is a plant selected from the group consisting of: tulip, lily, gladiolus and hyacinth.
[10]
The method as set forth in any one of claims 6 to 8, wherein the ornamental bulb consists of tulips.

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同族专利:

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公开号 | 公开日

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NL1039387C2|2012-09-26|

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JP2012193163A|2012-10-11|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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CN104649831A|2015-03-02|2015-05-27|苏州奥然日用品有限公司|Novel compound fertilizer capable of preventing and treating blight disease of lily|

法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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JP2011043584|2011-03-01|

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JP2011043584|2011-03-01|

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