CN109329280B - Medicament for inhibiting flower bud differentiation of evergreen tree species in garden and use method thereof - Google Patents
Medicament for inhibiting flower bud differentiation of evergreen tree species in garden and use method thereof Download PDFInfo
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- CN109329280B CN109329280B CN201811464369.2A CN201811464369A CN109329280B CN 109329280 B CN109329280 B CN 109329280B CN 201811464369 A CN201811464369 A CN 201811464369A CN 109329280 B CN109329280 B CN 109329280B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/58—1,2-Diazines; Hydrogenated 1,2-diazines
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Abstract
The invention discloses a medicament for inhibiting flower bud differentiation of evergreen tree species in gardens, which is prepared from 1000 parts by weight of raw materials: 5-660 parts of raw medicine, and the balance of auxiliary agent; wherein the technical grade is selected from any one of dinitroaniline herbicides and 1, 2-dihydro-3, 6-pyridazinedione or a mixture of the dinitroaniline herbicides and the 1, 2-dihydro-3, 6-pyridazinedione in any proportion. The invention also provides a use method of the agent for inhibiting flower bud differentiation of the evergreen tree species in the garden, wherein the agent is sprayed according to the original drug concentration of 3 g/L-60 g/L or injected into a trunk according to the breast diameter of 3 g/dm-60 g/dm 1-50 days before the physiological differentiation period of the flower buds of the evergreen tree species in the garden. The method has the advantages that the method can inhibit flower bud differentiation of the evergreen tree species in the garden, further differentiate the flower buds into leaf buds, and effectively solve the problems that the tree vigor of the evergreen tree species in the garden is weak, the fruits fall off to the road surface after being mature, the fruits become pests overwintering places of the evergreen tree species in the garden and the like caused by a large amount of fructification of the evergreen tree species in the garden.
Description
Technical Field
The invention relates to the field of landscaping, in particular to a medicament for inhibiting flower bud differentiation of evergreen trees in gardens and a using method thereof.
Background
When the garden plants are about to enter the strong period or the mature period, the amount of the crown and the green of the garden plants is increased little or no longer, at the moment, the biomass generated by photosynthesis of the garden plants is also increased little or no longer, and the garden plants entering the strong period and the mature period also enter the full-bearing period. However, the garden plants blossom and fruit in large quantities and consume a large amount of tree nutrients, and the stored inorganic and organic nutritional components need to be collected from roots and branches, so that carbon skeleton, energy and protoplasm components are provided for the growth and development of the garden plants, the garden plants are overloaded, the broadleaf garden plants begin to be burnt and yellow before fruits are mature, the coniferous garden plants begin to be withered and yellow from coniferous leaf tips, and the like, and even the leaves and the coniferous plants drop off in advance in severe cases. The leaves are burnt and yellow, the tips of the coniferous leaves are withered and yellow, and the leaves and the coniferous leaves fall off in advance, so that the biomass generated by the photosynthesis of the garden plants is extremely reduced, the trees are in a hungry state for a long time, the tree vigor is gradually weakened, and even the garden plants wither. Therefore, the mass fruit setting of garden plants becomes one of the main causes of garden plant decay.
Simultaneously, some berries, fruit landscape plant's fruit meat quality are starchy, and contain different pigment more, and the fruit falls after ripe and can pollute ground after ground, forms the spot of various colours, is difficult to clear away, even links roadside car and pedestrian and also can suffer from, influences urban environment clean and tidy, also gives people the trip and brings some unnecessary troubles. Fruits of some garden plants are the main overwintering site for some pests, providing favorable conditions for the occurrence of some pests in the next year.
In summary, the problems of garden plant growth weakness, fruit pollution, pest overwintering places and the like caused by massive fructification of garden plants have caused extensive attention of all social circles, and become one of the problems to be urgently solved by the urban management department. No medicament for effectively preventing and controlling a large amount of fruit of tree species exists in the market, so that the product provides an effective way for solving the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the first object of the invention is to provide a medicament for inhibiting flower bud differentiation of evergreen garden tree species, which has the advantage of inhibiting flower bud differentiation of evergreen garden tree species so as to differentiate the evergreen garden tree species into leaf buds.
The second purpose of the invention is to provide a use method of a flower bud differentiation medicament for preparing evergreen tree species in gardens, which has the advantages that: the problems that the tree vigor of the evergreen garden tree species is weak, the fruits fall off after being mature to cause environmental pollution to the road surface, the fruits become pests overwintering places of the evergreen garden tree species and the like caused by excessive consumption of nutrients of the evergreen garden tree species due to the fact that the evergreen garden tree species are fruited in a large quantity can be effectively solved.
In order to achieve the first object, the invention provides the following technical scheme: a medicament for inhibiting flower bud differentiation of evergreen tree species in gardens is prepared from 1000 parts by weight of raw materials: 5 to 660 portions of raw medicine and the rest is auxiliary agent;
wherein the technical grade is selected from one or two of 1, 2-dihydro-3, 6-pyridazinedione and dinitroaniline herbicides by compounding in any proportion.
Through adopting above-mentioned technical scheme, be used for gardens evergreen tree species through the medicament of making above-mentioned raw materials, can restrain gardens evergreen tree species flower bud differentiation, and then make it differentiate into the leaf bud, and then effectively solve because of the gardens evergreen tree species is fruited in a large number and excessively consumes gardens evergreen tree species's nutrient cause gardens evergreen tree species tree vigor weak, drop the environmental pollution and the fruit becomes gardens evergreen tree species pest overwintering place scheduling problem that cause the road surface after the fruit is ripe.
Further, the raw materials for preparing the medicament comprise, by weight, 1000 parts of:
further, the raw materials for preparing the medicament comprise, by weight, 1000 parts of:
further, the dinitroaniline herbicide is selected from one or more of the following raw materials: n-sec-butyl-4-tert-butyl-2, 6-dinitroaniline, N- (2 '-chloro-6' -fluorobenzyl) -N-ethyl-2, 6-dinitro-4-trifluoromethylaniline, N- (1-ethylpropyl) -2, 6-dinitro-3, 4-dimethylaniline, N-ethyl-N- (2-methyl-2-propenyl) -2, 6-dinitro-4-trifluoromethylaniline, 2, 6-dinitro-N, N-dipropyl-4-trifluoromethylaniline, 2, 4-dinitro-N3, N3-dipropyl-6-trifluorotoluene-1, 3-diamine, 4-isopropyl-2, 6-dinitro-N, N-dipropylaniline, N- (cyclopropylmethyl) -2, 6-dinitro-N-propyl-4- (trifluoromethyl) -aniline, N- (2-chloroethyl) -2, 6-dinitro-N-propyl-4-trifluoromethylaniline, 3-diethylamino-2, 4-dinitro-6-trifluoromethylaniline, N-dipropyl-4-aminosulfonyl-2, 6-nitroaniline. Preferably, the prodrug is selected from 2, 6-dinitro-N, N-dipropyl-4-trifluoromethylaniline, N-sec-butyl-4-tert-butyl-2, 6-dinitroaniline, N- (2-chloroethyl) -2, 6-dinitro-N-propyl-4-trifluoromethylaniline, N- (2 '-chloro-6' -fluorobenzyl) -N-ethyl-2, 6-dinitro-4-trifluoromethylaniline.
Further, the solvent is selected from one or more of toluene, xylene, cyclohexanone, rosin-based vegetable oil ND-45 and solvent oil S-150;
the emulsifier is selected from one or more of agricultural emulsion series emulsifier, NP series emulsifier, EL series emulsifier, AEO series emulsifier or sodium polyacrylate and styrene-maleic anhydride;
the stabilizer is one or two of magnesium aluminum silicate and ethyl p-hydroxybenzoate sodium salt;
the dispersant is selected from one or two of sodium lignosulfonate and naphthalene sulfonate formaldehyde condensate;
the antifreezing agent is one or more selected from ethylene glycol, propylene glycol and glycerol;
the defoaming agent is selected from one or more of n-butyl alcohol, polyoxypropylene glycerol ether, polydimethylsiloxane and organic silicon.
In order to achieve the second object, the invention provides the following technical scheme: a use method of a medicament for inhibiting flower bud differentiation of garden evergreen tree species comprises the step of spraying the medicament for inhibiting flower bud differentiation of garden evergreen tree species according to the concentration of a raw medicament of 3 g/L-60 g/L or injecting the trunk according to the dose of the raw medicament of 3 g/dm-60 g/dm 1-50 days before the physiological differentiation period of the flower buds of the garden evergreen tree species. Preferably, the medicament for inhibiting flower bud differentiation of the evergreen tree species in the garden is sprayed according to the concentration of a raw medicament of 5 g/L-50 g/L or injected according to the breast diameter trunk with the dosage of the raw medicament of 5 g/dm-50 g/dm.
Further, the trunk injection mode is a self-flowing trunk injection mode, wherein the self-flowing trunk injection method is selected from any one of pressurized trunk injection, bag hanging or bottle inserting.
Further, the determination of the physiological differentiation period of the flower buds of the evergreen tree species in the garden is obtained by testing under test condition C, which specifically operates as follows:
after diluting the original medicine by 150 times, spraying the original medicine to different plants for 1 time after 1 month of a full leaf expansion period of a certain tree species; and determining the physiological differentiation period of the flower buds of the tree seeds according to the development trend of the flower bud variation amount in the flowering phase of the tree seeds or the development trend of the fruit variation amount in the fruit phase in the next year, wherein the flower bud variation amount or the fruit variation amount after pesticide application is changed from less to more and is determined 2-3 days before and after the last pesticide spraying time.
Further, the operation of the test condition C is carried out on different plants of the same tree species in different areas, then, the latitude of a certain specific area and the physiological differentiation period of the flower buds of the tree species are taken as reference standards, the influence of the latitude on the physiological differentiation period of the flower buds of the tree species is analyzed, and the increase and decrease rules of the latitude difference and the physiological differentiation period of the flower buds of the tree species in other different areas and the specific area are obtained.
Furthermore, the latitude of Beijing is taken as a reference, and when the latitude difference increases or decreases by 1 latitude, the physiological differentiation period of the flower buds of the evergreen tree species in the garden correspondingly increases or decreases by 2.0-3.5 days.
In conclusion, the invention has the following beneficial effects:
1. the agent for inhibiting flower bud differentiation of the evergreen garden tree species is used for the evergreen garden tree species, flower bud differentiation of the evergreen garden tree species can be inhibited, and further the evergreen garden tree species is differentiated into leaf buds, so that the problems that the tree vigor of the evergreen garden tree species is weak, the fruits fall down to the road surface after being mature and cause environmental pollution, the fruits become pest overwintering places of the evergreen garden tree species and the like caused by excessive consumption of nutrients of the evergreen garden tree species due to massive fructification of the evergreen garden tree species can be effectively solved;
2. the medicament for inhibiting flower bud differentiation of the evergreen tree species in the garden is suitable for Chinese pine, white bark pine, arborvitae, juniper, cedar, spruce, larch and the like, and garden deciduous tree species such as white wax, ligustrum lucidum ait, sophora japonica, cinnamomum camphora, ficus microcarpa, syzygium hainanense and the like;
3. according to the test condition C, the influence of the physiological differentiation period and the latitude of the flower buds of different tree species on the physiological differentiation period of the plant flower buds can be determined, the application starting time and the application ending time of different places can be further determined, and the agent for inhibiting the flower bud differentiation of the evergreen tree species in the garden can be applied to different plants in different areas.
Detailed Description
The present invention will be described in further detail with reference to examples.
The landscaping evergreen tree species refer to Chinese pine, white bark pine, arborvitae and juniper, cedar, spruce, larch and the like, and garden broadleaf plants such as white wax, ligustrum lucidum ait, sophora japonica, cinnamomum camphora, ficus microcarpa, syzygium hainanense and the like.
In order to inhibit flower bud differentiation of evergreen tree species and differentiate the flower buds into leaf buds, and further effectively solve a series of defects caused by a large amount of fruit setting of evergreen tree species (particularly problems of weak tree vigor of the evergreen tree species caused by excessive consumption of nutrients of the evergreen tree species due to the large amount of fruit setting of the evergreen tree species, environmental pollution caused by falling of mature fruits on road surfaces, overwintering places of pests of the evergreen tree species and the like), the inventor screens out medicaments possibly influencing flower bud differentiation of the evergreen tree species on the basis of a large amount of literature on flower bud differentiation, growth, callus induction, differentiation and growth of the evergreen tree species at home and abroad, screens out the screened medicaments and other medicaments with similar structures and functions to the medicaments as test reagents for screening, and then selects Chinese pine as a test tree species in Beijing area, the test was carried out under test condition C.
Test condition C was specifically performed as follows: after diluting 150 times, spraying the raw pesticide of the pesticide supply reagent on needle leaves of the Chinese pine 1 month after the full leaf growth period of the Chinese pine (namely the late 5 month), applying the reagent on different plants of the Chinese pine every other week, marking the reagent until the bottom of 8 months, and performing a large number of tests according to the method, for example, applying the reagent on different plants of the Chinese pine 14 times in total of 5 months 15 days, 5 months 22 days, 5 months 29 days, 6 months 5 days, 6 months 12 days, 6 months 19 days, 6 months 26 days, 7 months 3 days, 7 months 10 days, 7 months 17 days, 7 months 24 days, 7 months 31 days, 8 months 7 days and 8 months 14 days;
when the non-experimental tree of the pinus tabulaeformis is in the fruit development period in the next year, observing and counting the number of terminal buds and fruits (megaspore spheres) of different plants of the pinus tabulaeformis under the conditions of different reagent supplies and different application time, and judging whether the used reagent has the effect of inhibiting flower bud differentiation according to the condition that whether the tree seeds are reduced in quantity due to the application of the reagent;
meanwhile, the physiological differentiation period of the flower buds of the pine tree species can be determined according to the number of terminal buds and fruits in the next year after the agent with the flower bud differentiation inhibition effect is sprayed on different plants of the Chinese pine at different time, because the agent has a certain half-life period, the plants sprayed with the agent earlier at a certain dose do not have the effect of inhibiting the flower bud differentiation due to the degradation of the agent, for example, the plants sprayed on the 29 th and the 5 th days in 5 months have megaspore spheres on the tops of most new branches when the second year is investigated, the plants sprayed for 6 12 th, 19 th, 26 th and 3 rd days in 6 months have no megaspore spheres on the tops of most new branches when the second year is investigated, the flower bud differentiation of the plants is inhibited, and the plants sprayed after 10 th day in 7 months have the megaspore spheres on the tops of the new branches when the second year is investigated, so that the physiological differentiation period of the flower buds of the Chinese pine in Beijing area is 2-3 days before and after 7 months, a large number of experiments are carried out by the method, the physiological differentiation period of the flower buds of the plants can be determined, and meanwhile, the application of the pesticide 1-50 days before the physiological differentiation period of the flower buds can be obtained according to the maximum pesticide application dose which can be borne by the plants and is not subjected to phytotoxicity, the degradation rate of the pesticide in the plants and the minimum acting dose of the pesticide in the flower bud differentiation period of the plants, so that the method has the effect of inhibiting the flower bud differentiation of the plants.
Through the test conditions C, the test agents screened by the invention, which have an inhibiting effect on the flower bud differentiation of the Chinese pine, comprise: 1, 2-dihydro-3, 6-pyridazine-dione, N-sec-butyl-4-tert-butyl-2, 6-dinitroaniline, N- (2 '-chloro-6' -fluorobenzyl) -N-ethyl-2, 6-dinitro-4-trifluoromethylaniline, N- (1-ethylpropyl) -2, 6-dinitro-3, 4-dimethylaniline, N-ethyl-N- (2-methyl-2-propenyl) -2, 6-dinitro-4-trifluoromethylaniline, 2, 6-dinitro-N, N-dipropyl-4-trifluoromethylaniline, 2, 4-dinitro-N3, n3-dipropyl-6-trifluorotoluene-1, 3-diamine, 4-isopropyl-2, 6-dinitro-N, N-dipropylaniline, N- (cyclopropylmethyl) -2, 6-dinitro-N-propyl-4- (trifluoromethyl) -aniline, N- (2-chloroethyl) -2, 6-dinitro-N-propyl-4-trifluoromethylaniline, 3-diethylamino-2, 4-dinitro-6-trifluoromethylaniline, N-dipropyl-4-aminosulfonyl-2, 6-nitroaniline. Wherein, except 1, 2-dihydro-3, 6-pyridazine diketone, the rest is the active component in the dinitroaniline herbicide. The 1, 2-dihydro-3, 6-pyridazine dione and the dinitroaniline herbicide can independently act to inhibit the flower bud differentiation of plants, and the two herbicides can be compounded in any proportion to play a substantially consistent inhibiting effect.
The screened medicine supply agent with the inhibition effect on flower bud differentiation of the Chinese cypress is sprayed on different evergreen tree species of garden evergreen tree species such as white bark pine, arborvitae and Chinese juniper according to the Chinese pine test condition C, the screened medicine supply agent is verified to be also suitable for different evergreen tree species of garden evergreen tree species such as white bark pine, arborvitae and Chinese juniper, meanwhile, the flower bud physiological differentiation period of the garden evergreen tree species such as the white bark pine, the arborvitae and the Chinese juniper is obtained, the Beijing area is used as a test area, the flower bud physiological differentiation period of the white bark pine in the Beijing area is 2-3 days before and after 7-10 days, the flower bud physiological differentiation period of the Chinese arborvitae is 2-3 days before and after 5-27 days, and the flower bud physiological differentiation period of the female Chinese juniper is 2-3 days before and after 5-25 days.
Because the physiological differentiation period of plants can be changed only by latitude change or acute altitude change, the pesticide supply agent is sprayed on different plants of evergreen tree species in gardens in different areas, such as Beijing and Shandong Zibo, according to the test condition C of pinus tabulaeformis, the influence of the latitude on the physiological differentiation period of the flower buds of the tree species is determined according to the fruit number of the evergreen tree species in gardens in the next year, and a large number of tests prove that the physiological differentiation period of the tree species can be correspondingly increased or decreased by 2.0-3.5 days when the latitude is increased or decreased by 1 degree.
The functional group of the dinitroaniline herbicide is shown as the following formula (I):
through research, the dinitroaniline herbicide makes cells stay in the metaphase of mitosis by interfering the assembly of spindle microtubules in plant cells through the functional groups, so that the dinitroaniline herbicide is effective by interfering the mitosis and cell division of new roots and buds of seedlings, but has little effect on seedling formation and cannot kill the seedlings. The dinitroaniline also has the function of interfering the assembly of spindle microtubules in plant cells to interfere the mitosis and cell division of seedling buds for the seedlings, namely, the dinitroaniline herbicide is used for the seedlings, does not produce phytotoxicity under a certain dosage, but has the function on the physiological metabolism of the seedlings, and is specifically represented as follows: the pesticide is applied before the physiological differentiation period of the flower bud differentiation of the plant, the bud differentiation can be interfered into the flower bud, after the physiological differentiation period of the flower bud passes, the pesticide is metabolized and decomposed by the plant, the pesticide effect is relieved, and the bud continues to be differentiated into the leaf bud. Therefore, the medicament has no obvious influence on the normal growth and development of plants except for flower bud differentiation.
Through the screening test, the test reagent is used as a raw medicine to prepare a medicament for inhibiting flower bud differentiation of evergreen tree species in gardens.
The following examples show the agent for inhibiting flower bud differentiation of evergreen tree species in gardens, and the raw materials for preparing the agent are 1000 parts by weight and are selected from: 5 to 660 portions of raw medicine and the rest is auxiliary agent;
specifically, the raw materials include:
the active ingredients of the raw pesticide are one or more of the drug supply agents obtained under the test conditions C and are mixed in any proportion, specifically, the active ingredients of the 1, 2-dihydro-3, 6-pyridazinedione and the dinitroaniline herbicide are 1, 2-dihydro-3, 6-pyridazinedione and the dinitroaniline herbicide which are used independently respectively, or the active ingredients of the two which are compounded in any proportion are used, or the active ingredients of the dinitroaniline herbicide are compounded;
the preparation formulation of the medicament is missible oil, suspending agent, microcapsule suspending agent, microemulsion suspending agent, aqueous emulsion, water dispersible granule, wettable powder or oil agent;
the solvent is one or more selected from toluene, xylene, cyclohexanone, rosin-based vegetable oil ND-45 and solvent oil S-150;
the emulsifier is selected from one or more of agricultural emulsion series emulsifier (preferably calcium dodecyl benzene sulfonate), NP series emulsifier (preferably nonylphenol polyoxyethylene ether phosphate), EL series emulsifier (preferably castor oil polyoxyethylene ether), AEO series emulsifier (preferably fatty alcohol polyoxyethylene ether) or sodium polyacrylate and styrene-maleic anhydride;
the stabilizer is one or two of magnesium aluminum silicate and ethyl p-hydroxybenzoate sodium salt;
the dispersant is one or two selected from sodium lignosulfonate and naphthalene sulfonate formaldehyde condensate;
the antifreezing agent is one or more selected from ethylene glycol, propylene glycol and glycerol;
the defoaming agent is one or more selected from n-butyl alcohol, polyoxypropylene glycerol ether, polydimethylsiloxane and organic silicon.
In the invention, the main effect of inhibiting the flower buds of the tree species is to inhibit the original medicinal components in the medicament for inhibiting the flower buds of the evergreen tree species from differentiating, so the auxiliary agents in the medicament are only common auxiliary agents used by the technicians in the field in the process of preparing the medicament, the technicians in the field can select different auxiliary agents according to the dosage form prepared by the medicament, can select the auxiliary agents, and can also replace or supplement the auxiliary agents by other auxiliary agents.
The medicament prepared by compounding the raw medicines and the auxiliary agents can adopt a spraying method or a breast-diameter trunk injection method, wherein the breast-diameter trunk injection method is selected from but not limited to a high-pressure trunk injection method, a bag-hanging injection method, a self-flowing bottle-inserting method and other self-flowing trunk injection methods.
The solvents, emulsifiers, stabilizers, dispersants, antifreeze agents and defoamers are all commercially available, and the raw materials used in the following examples to prepare the agent for inhibiting flower bud differentiation of evergreen tree species in gardens are illustrated by taking 1000g as an example.
Example 1
A medicament for inhibiting flower bud differentiation of evergreen tree species in gardens is prepared by dissolving 350g of original drug 2, 6-dinitro-N, N-dipropyl-4-trifluoromethylaniline in 500g of xylene solvent, adding 30 g of NP-10 and 30 g of Span-80 emulsifiers, fully stirring to prepare missible oil, adding 40g of glycerol as an antifreezing agent, 2g of polydimethylsiloxane as an antifoaming agent, 25g of naphthalenesulfonate formaldehyde condensate as a dispersing agent, 1g of ethyl p-hydroxybenzoate sodium salt as a stabilizing agent, complementing the mixture with xylene solvent when the amount is less than 1000g, and fully stirring to prepare the missible oil to obtain the target medicament.
The agents for inhibiting flower bud differentiation of evergreen garden tree species in examples 2 to 5 were prepared according to the method of example 1, except that the agents for inhibiting flower bud differentiation of evergreen garden tree species in each example were prepared in the amounts of the respective raw materials shown in table 1.
Table 1:
example 6
An agent for inhibiting flower bud differentiation of evergreen tree species in garden, according to the method of example 1, except that N-sec-butyl-4-tert-butyl-2, 6-dinitroaniline and 6-dinitro-N, N-dipropyl-4-trifluoromethylaniline are used as raw materials, and the ratio of 1: mixing at a ratio of 1.
Example 7
An agent for inhibiting flower bud differentiation of evergreen tree species in garden, carried out in accordance with the method of example 1, except that the original drug is selected from 1, 2-dihydro-3, 6-pyridazinedione and 6-dinitro-N, N-dipropyl-4-trifluoromethylaniline in a ratio of 4: and 5, mixing in proportion.
Example 8
An agent for inhibiting flower bud differentiation of evergreen tree species in gardens was prepared according to the method of example 1, except that the original drug was selected from 1, 2-dihydro-3, 6-pyridazinedione.
Application example 1
A use method of a medicament for inhibiting flower bud differentiation of garden evergreen tree species is characterized in that the flower bud physiological differentiation period of Chinese pine in Beijing areas is 2-3 days before and after 7 months and 3 days, the medicament for inhibiting flower bud differentiation of garden evergreen tree species prepared in the embodiment 1 is diluted and sprayed on needle leaves of the Chinese pine according to the dose of 9g/L of original medicine in the North Xiaohe park at 2017, 6 months and 23 days, and the medicament is uniformly sprayed on the front surface and the back surface of the needle leaves of the Chinese pine until the needle leaves are wet and sprayed once.
When 5 months in 2018 and before the control Chinese pine is in the full-bloom stage, 12 branches with the length of about 30cm are randomly taken from the upper, middle, lower, south, east and north of the control Chinese pine and the test Chinese pine, the number of terminal buds and the number of fruits on each branch of the control Chinese pine and the test Chinese pine are investigated, the number of fruits on each bud of the control Chinese pine and the test Chinese pine is calculated, and the control effect of the medicament on the Chinese pine is measured by using the fruit control rate, wherein the fruit control rate is (the average number of fruits per bud of the control tree-the average number of fruits per bud of the test tree)/the average number of fruits per bud of the control tree is 100%, and the test results are shown in table 2.
Table 2:
as can be seen from the data in Table 2, the control effect of the 2, 6-dinitro-N, N-dipropyl-4-trifluoromethyl aniline on the Chinese pine seed is good.
Application examples 2 to 9 were performed according to the method in application example 1, except that the prepared target agents were different in drug application concentration, the drug application concentrations of the drug agents in application examples 2 to 9 were sprayed according to table 3, the fruit set prevention and treatment rates of the pinus tabulaeformis after different drug application concentrations were measured in the next year, and the measurement results are shown in table 3.
Table 3:
application examples 10 to 12 were operated according to the method in application example 1, except that the drug prepared in example 1 was injected in a pressurized trunk injection manner, the used instrument was a conlin 6HZ-W1020 trunk injector, the conlin 6HZ-W1020 trunk injector was manual injection, and the pressure of the injector was controlled to be 0.11 to 0.55Mpa in the process; in application example 10, the injection amount of the traditional Chinese medicine is 3g/dm of the breast diameter of the original medicine, namely, the injection of the traditional Chinese medicine ensures that the amount of the original medicine in the medicine is increased by 3g when the breast diameter of the trunk is increased by 1 dm; in application example 11, the injection amount of the traditional Chinese medicine is 60g/dm of breast diameter; in application example 12, the injection amount of the traditional Chinese medicine is 50g/dm of breast diameter; the firmness prevention and treatment rates of the Chinese pine after different application rates are respectively measured, and the measurement results are shown in table 4.
Application example 13
The procedure of application example 10 was followed except that the method of bottle-inserted trunk injection was used, and the results of the setting prevention rate on the next year of the pine were shown in table 4.
Application example 14
The procedure was as in application example 10 except that the bag-hanging type trunk injection method was used, and the results of the setting prevention rate on the pine next year are shown in table 4.
Application example 15 and application example 16 were performed according to the method in application example 1, except that the prepared self-made flower bud differentiation inhibitory agent was applied for different time periods, the physiological differentiation period of flower buds of Chinese pine in Beijing area was 2 to 3 days before and after 7 months and 3 days, and the self-made flower bud differentiation inhibitory agent was sprayed on the needles of Chinese pine at a raw drug concentration of 9.0g/L in 2017, 5 months and 16 days in application example 15; in application example 17, the self-made flower bud differentiation inhibitor was sprayed on the pine needles in 2017, 7 and 1 months, at a raw drug concentration of 9.0g/L, and the fructification prevention and treatment rate of the pine after different application times was measured in the next year, and the results are shown in table 4.
Application examples 17 to 23 were conducted in accordance with the method in application example 1, except that the target agents prepared in examples 2 to 8 were sprayed on the needles of the pine needle at a raw material concentration of 9g/L, respectively, and the setting prevention rates of the pine needles after application of the different agents were measured, respectively, and the measurement results are shown in table 4.
Table 4:
application example 24
A use method of a reagent for inhibiting flower bud differentiation of garden evergreen trees comprises the steps of enabling the flower bud physiological differentiation period of female juniper plants in Beijing to be 2-3 days around 25 days of 5 months, spraying the reagent prepared in example 1 on the scales of the juniper plants in a Beijing river park of 2017, 26 days of 5 months and 27 days of 2017 of a Tiantan park of 2017, uniformly spraying the reagent on the front and back surfaces of leaves until the leaves are wet, and spraying the reagent once.
In late-4-month-late-year-2018, when the flowering period of the contrast juniper is finished and a large number of juniper knots are real, 12 branches are randomly taken from the four directions of the upper middle part, the lower part, the south east, the west and the north, the number of fruits on each branch of the contrast juniper and the test juniper is investigated, the number of fruits on each branch of the contrast juniper and the test juniper is calculated, the control effect of the medicament on the juniper is measured by using the fruit control rate, wherein the fruit control rate is (the average number of fruits per branch of the contrast tree-the average number of fruits per branch of the test tree)/the average number of fruits per branch of the contrast tree is 100%, and the test results are shown in table 5.
Table 5:
as can be seen from the data in Table 5, N-sec-butyl-4-tert-butyl-2, 6-dinitroaniline showed good control effect on the fruit formation of Sabina chinensis.
Comparative example 1
The procedure of example 6 was followed except that the flower bud differentiation of evergreen tree species in garden was carried out at a controlled concentration of 3.2g/L and the setting prevention rate of Chinese pine was 38.56 + -2.42%. It is known that when the application amount is less than 4g/L, the effect of the firm control of the Chinese pine is poor.
Comparative example 2
The procedure of example 6 was followed except that the amount of the agent for flower bud differentiation of evergreen tree species in gardens was controlled to 70.6 g/L.
By comparative example 2, which caused withered yellow needles and fallen leaves, it can be seen that a large phytotoxicity was caused to the pine when the application amount was too large.
Comparative example 3
The method is operated according to the method of application example 1, and is characterized in that the physiological differentiation period of flower buds of female Chinese juniper plants in Beijing is 2-3 days before and after 5-25 days, and the self-made flower bud differentiation inhibiting agent is used for the female Chinese juniper plants in 2017, 6-1 days. The fruiting prevention rate of the female strains of the Chinese junipers is 0%, and the application of the Chinese junipers after the flower bud differentiation period has no effect on the flower bud differentiation of the Chinese junipers.
In conclusion, the original drug screened by the test under the test condition C in the invention is prepared into the drugs in the forms of oil slick and the like together with other raw materials such as solvent, stabilizer and the like, and then the drugs are sprayed with the original drug concentration of 3 g/L-60 g/L or injected into evergreen garden tree species such as Chinese pine, Chinese juniper and the like according to the breast-height trunk with the original drug dosage of 3 g/dm-60 g/dm, so that the problems of weak tree vigor of the evergreen garden tree species, environmental pollution caused by excessive consumption of nutrients of the evergreen garden tree species due to massive fructification of the evergreen garden tree species, and overwintering places where the fruits fall on the road surface after the fruits are mature and become evergreen tree species pests can be effectively solved;
according to the test condition C, the influence of the physiological differentiation period and latitude of the flower buds of different tree species on the physiological differentiation period of the flower buds of the plants can be determined, and the application time of different places can be further determined.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. A use method of a medicament for inhibiting flower bud differentiation of evergreen garden tree species is characterized in that the medicament for inhibiting flower bud differentiation of evergreen garden tree species is sprayed according to the original drug concentration of 3 g/L-60 g/L or injected according to the breast diameter trunk with the original drug dosage of 3 g/dm-60 g/dm 1-50 days before the physiological differentiation period of flower buds of evergreen garden tree species;
the medicament is prepared from the following raw materials in 1000 parts by weight: 350-660 parts of raw medicine and the balance of auxiliary agent;
wherein the raw material medicine is 2, 6-dinitro-N, N-dipropyl-4-trifluoromethyl aniline or N-sec-butyl-4-tert-butyl-2, 6-dinitroaniline and 2, 6-dinitro-N, N-dipropyl-4-trifluoromethyl aniline mixed according to the mass ratio of 1: 1.
2. The use method of the agent for inhibiting flower bud differentiation of evergreen tree species in gardens as claimed in claim 1, wherein the raw materials for preparing the agent comprise, in 1000 parts by weight:
350-660 parts of raw medicine
1.2-80 parts of emulsifier
0.3-2 parts of stabilizer
1 to 50 parts of dispersant
3-40 parts of antifreezing agent
0.5-5 parts of defoaming agent
The balance being solvent.
3. The use method of the agent for inhibiting flower bud differentiation of evergreen tree species in gardens as claimed in claim 2, wherein the raw materials for preparing the agent comprise, in 1000 parts by weight:
350-500 parts of raw medicine
20-65 parts of emulsifier
0.5-1.8 parts of stabilizer
10-35 parts of dispersant
15-30 parts of antifreezing agent
1.5-3.5 parts of defoaming agent
The balance being solvent.
4. The use method of the agent for inhibiting flower bud differentiation of evergreen tree species in garden as claimed in claim 2, wherein the solvent is one or more selected from toluene, xylene, cyclohexanone, rosin-based vegetable oil ND-45 and mineral spirit S-150;
the emulsifier is selected from one or more of agricultural emulsion series emulsifier, NP series emulsifier, EL series emulsifier, AEO series emulsifier or sodium polyacrylate and styrene-maleic anhydride;
the stabilizer is one or two of magnesium aluminum silicate and ethyl p-hydroxybenzoate sodium salt;
the dispersant is selected from one or two of sodium lignosulfonate and naphthalene sulfonate formaldehyde condensate;
the antifreezing agent is one or more selected from ethylene glycol, propylene glycol and glycerol;
the defoaming agent is selected from one or more of n-butyl alcohol, polyoxypropylene glycerol ether, polydimethylsiloxane and organic silicon.
5. The use method of the agent for inhibiting flower bud differentiation of garden evergreen tree species according to claim 1, wherein the trunk injection manner is high-pressure trunk injection or gravity flow trunk injection, and the gravity flow trunk injection method is selected from any one of hanging bags and inserting bottles.
6. The use method of the agent for inhibiting flower bud differentiation of evergreen tree species in garden as claimed in claim 1, wherein the determination of the physiological differentiation period of flower buds of evergreen tree species is determined by experiment under experiment condition C, which is specifically operated as follows:
after diluting the original medicine by 150 times, spraying the original medicine to different plants for 1 time after 1 month of a full leaf expansion period of a certain tree species; and determining the physiological differentiation period of the flower buds of the tree seeds according to the development trend of the flower bud variation amount in the flowering phase of the tree seeds or the development trend of the fruit variation amount in the fruit phase in the next year, wherein the flower bud variation amount or the fruit variation amount after pesticide application is changed from less to more and is determined 2-3 days before and after the last pesticide spraying time.
7. The method for using the agent for inhibiting flower bud differentiation of evergreen tree species in garden as claimed in claim 6, wherein the test condition C is performed on different plants in different regions, and then the influence of latitude on the physiological differentiation period of the flower buds of the tree species is analyzed with reference to the latitude of a specific region and the physiological differentiation period of the flower buds of the tree species, thereby obtaining the increase and decrease rules of the difference in latitude and the physiological differentiation period of the flower buds of the tree species in other different regions and the specific region.
8. The method for using the agent for inhibiting flower bud differentiation of evergreen tree species in gardens according to claim 7, wherein the physiological differentiation period of the flower buds of evergreen tree species in gardens is increased or decreased for 2.0-3.5 days when the latitude difference is increased or decreased by 1 latitude with respect to Beijing.
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