阅读说明：本技术 抑制柳絮的农药组合物 (Pesticide composition for inhibiting catkin ) 是由 赵国正 曾显斌 刘祥宇 张超 黄禹 任林林 于 2021-01-18 设计创作，主要内容包括：本发明涉及一种抑制柳絮的农药组合物,由以下成分组成：氨氯吡啶酸、萘乙酰胺、金雀异黄素、润湿分散剂、增稠剂、流变剂、防冻剂、水；本发明达到的有益效果是：显著提升柳树花序的去除率,且同时对嫩叶伤害极小；毒性低,安全,对环境无污染且成本低廉；药物作用的时间长,短期无需补施。(The invention relates to a pesticide composition for inhibiting catkin, which consists of the following components: picloram, naphthylacetamide, genistein, wetting dispersant, thickening agent, rheological agent, antifreezing agent and water; the invention achieves the following beneficial effects: the removal rate of the willow inflorescence is obviously improved, and meanwhile, the damage to tender leaves is extremely small; low toxicity, safety, no environmental pollution and low cost; the medicine has long action time and short period without need of supplementary application.)

1. A pesticide composition for inhibiting catkin, characterized by: the preparation is prepared from the following components:

picloram, naphthylacetamide and genistein as effective components;

an auxiliary material;

a solvent.

2. The catkin-inhibiting pesticidal composition of claim 1, wherein: the auxiliary materials are wetting dispersant, thickening agent, rheological agent and antifreezing agent.

3. The catkin-inhibiting pesticidal composition of claim 2, wherein: the wetting dispersant is one or more of alkylphenol polyoxyethylene, propylene glycol block polyether, calcium dodecyl benzene sulfonate, lignosulphonate and tea saponin.

4. The catkin-inhibiting pesticidal composition of claim 3, wherein: the thickening agent is one or more of xanthan gum and sodium carboxymethyl cellulose.

5. The catkin-inhibiting pesticidal composition of claim 4, wherein: the rheological agent is one or more of magnesium aluminum silicate and white carbon black.

6. The catkin-inhibiting pesticidal composition of claim 5, wherein: the antifreezing agent is one or more of ethylene glycol and glycerol.

7. The catkin-inhibiting pesticidal composition of claim 6, wherein: the solvent is water.

8. The catkin-inhibiting pesticidal composition of claim 7, wherein: in the pesticide composition for inhibiting catkin, 1-30 parts of picloram, 0.5-5 parts of naphthylacetamide, 0.5-5 parts of genistein, 1-10 parts of wetting dispersant, 0.05-0.5 part of thickener, 0.1-2 parts of rheological agent, 1-5 parts of antifreeze and 42.5-96 parts of water are calculated according to parts by weight.

9. The method of making a catkin-inhibiting pesticidal composition of claim 8, wherein: the method comprises the following steps:

a. pumping water into a shearing kettle, gradually adding picloram, naphthylacetamide and genistein in a shearing state, and shearing at normal temperature and normal pressure;

b. conveying the uniformly sheared materials into a sand mill, adding a wetting dispersant and a rheological agent, and then sanding the materials by the sand mill until the fineness of the materials is less than 3.5 mu m;

c. conveying the sanded material to a preparation kettle, adding a thickening agent and an antifreezing agent, uniformly mixing, and sampling and detecting;

d. and packaging after the detection is qualified, detecting the package, and warehousing after the detection is qualified.

Technical Field

The invention relates to the field of plant growth regulators, and in particular relates to a pesticide composition for inhibiting catkin.

Background

Willow is a native tree species in China, is mainly used as an urban greening tree in the north, is planted on two sides of roads or inside parks in large quantities, is about 3 months every year, willow inflorescences (willow ears) begin to germinate, tender leaves can be simultaneously generated under the condition of proper temperature, when the willow ears are tender, the flower color is green, white cotton is generated in the old time, namely willow catkins, willow catkins flying over the sky like flying snow, flocculent substances are seed hairs on seeds, the willow catkins are typical allergens, allergic people can induce diseases once contacting the willow catkins, germs can be carried and spread in the floating process, and particularly, the willow catkins have great potential safety hazards, and if a large number of willow species are cut down and replaced, the time period is long, and the same aesthetic degree is difficult to achieve. The mode of inhibiting catkin which is commonly used at present is a medicine 'flower inhibiting No. I' which is developed by garden science research institute in Beijing and used for inhibiting catkin, namely gibberellic acid powder, the germination of the catkin is controlled by injecting willow in advance for one year, but the inhibiting effect is unstable, the cost is high, and the problems of plant diseases and insect pests and the like are easily caused by injection holes:

for example, patent application No. 201510222059.X, entitled "a poplar catkin inhibitor", includes: polyacrylamide, fulvic acid, abscisic acid, brassinolide and forchlorfenuron. Dissolving the raw materials in solvent, and spraying the agent onto tree crown with high pressure spray, wherein one spraying can be effective for about one month, and if the growth cycle of poplar and willow catkin in the year is long, the agent can be sprayed again after one month. The method is characterized in that polyacrylamide, fulvic acid, abscisic acid, brassinolide and forchlorfenuron are used for controlling newly generated catkin, but the time for the willow ear to age and grow the willow catkin is difficult to control within one or two days, one process is provided, the willow catkin formed on the day of pesticide application can only be solved by spraying twice and depending on the action mechanism mode of flocculation and weight increase of the willow catkin, the time for the willow ear to age and form the willow catkin lasts for 1-2 months, and the effect is not ideal;

for example, patent application No. 201710341763.6 entitled "method for controlling breeding of poplar flower and willow catkin" is characterized in that after the poplar trees grow spherical flower buds and willow tree spike-shaped tender shoots, the pesticide glyphosate and paraquat are proportionally mixed with water and sprayed on tree crowns by a high-pressure sprayer to make poplar flower and willow catkin wither and fall off, the paraquat is a sterilizing herbicide and can be rapidly absorbed by green tissues of plants to wither and die, has high toxicity and no specific antidote, is forbidden or strictly limited by a plurality of countries to use, is a sterilizing herbicide, has a sterilizing effect after contacting the green tissues, can make willow branches wither in a large area by spraying the two drugs, and is difficult to send out new leaves.

Therefore, in order to overcome the defects of the prior art for inhibiting the catkin, the pesticide composition for inhibiting the catkin is necessary.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a pesticide composition for inhibiting catkin, which overcomes the defects of the prior art, obviously improves the removal rate of willow inflorescences, and has little damage to tender leaves; the toxicity is low, the safety is realized, the environment is not polluted, and the cost is low; the medicine has long action time and short period without need of supplementary application.

The purpose of the invention is realized by the following technical scheme:

the pesticide composition for inhibiting catkin is prepared from the following components:

picloram, naphthylacetamide and genistein as effective components;

an auxiliary material;

a solvent.

The naphthalene acetamide can be absorbed by stems and leaves of plants, has slow conductivity, can cause the formation of inflorescence stem abscission layers, and is a good vegetable fruit thinning agent.

Genistein is a natural isoflavone compound present in leguminous and dentate plants. Is a strong inhibitor of tyrosine protein kinase and a topoisomerase inhibitor, the tyrosine protein kinase is an important protein for controlling cell growth and differentiation, plays a key role in normal cell division and abnormal cell proliferation, and can be used for controlling the flower bud differentiation of willow.

Picloram can be absorbed through the roots, stems, leaves of plants, and transferred to and accumulated in actively growing tissues. Is a selective herbicide, and mainly aims at broad-leaved weeds in the weeding aspect.

The picloram aqueous agent and the salts thereof can be rapidly absorbed and conducted through leaves and roots, mainly act on nucleic acid metabolism, make chloroplast structures and other organelles develop and malform, interfere protein synthesis, act on meristem activities and the like, and inhibit or kill meristem cells at high concentration. According to data registered by Ministry of agriculture, the conventional concentration of the picloram used on non-cultivated land is 2400-4800 ppm, so that broadleaf weeds can be effectively controlled, the prepared pesticide is diluted by adding water before use, the picloram concentration is reduced, the use concentration is only about 250ppm, the differentiation and formation of willow inflorescences can be effectively inhibited, but no pesticide effect symptom is basically caused to the young leaves, and the selective weeding effect of the picloram does not have obvious effect on the non-broadleaf plant leaves such as the willow leaves, so that the effect of basically not damaging the young leaves is achieved.

The half-life of the picloram is 1-12 months, the toxicity is low, and meanwhile, the toxicity of the genistein and the naphthylacetamide is low, so that the low-toxicity effect of the picloram is achieved.

Furthermore, the auxiliary materials are wetting dispersant, thickening agent, rheological agent and antifreezing agent.

Further, the wetting dispersant is one or more of alkylphenol polyoxyethylene, propylene glycol block polyether, calcium dodecylbenzene sulfonate, lignosulphonate and tea saponin;

the thickening agent is one or more of xanthan gum and sodium carboxymethyl cellulose;

the rheological agent is one or more of magnesium aluminum silicate and white carbon black;

the antifreezing agent is one or more of ethylene glycol and glycerol;

the solvent is water.

The method is characterized in that the occurrence of willow catkins needs to be controlled from the growth period of plants, the genistein is introduced to inhibit the tyrosine protease, the tyrosine protein kinase is an important protein for controlling the growth and the differentiation of cells, plays a key role in normal cell division and abnormal cell proliferation, the flower bud differentiation of willow can be strictly controlled through the action of the genistein, the formation of the inflorescence of the willow is controlled from the source, and in order to ensure that the inhibition rate is highest, if part of flower buds are differentiated, the flower buds can be inhibited or killed through the picloram, and the flower buds can be killed through the synergistic effect of the thinning of the naphthylacetamide, so that the flower buds fall off, and finally the possibility of controlling the occurrence of the willow catkins is achieved.

Further, in the pesticide composition for inhibiting catkin, 1-30 parts of picloram, 0.5-5 parts of naphthylacetamide, 0.5-5 parts of genistein, 1-10 parts of wetting dispersant, 0.05-0.5 part of thickener, 0.1-2 parts of rheological agent, 1-5 parts of antifreeze agent and 42.5-96 parts of water are calculated according to parts by weight.

The inhibition of the generation of catkin needs to be regulated in the growth process of willows, and the good inhibition effect of the catkin can be achieved by inhibiting the formation of inflorescences of the willows or enabling the inflorescences to fall off before the inflorescences are mature. Through the functions of inhibiting and killing meristematic cells and selectively weeding by picloram, the growth of a new inflorescence can be quickly inhibited in the inflorescence formation period, the formed inflorescence is killed, meanwhile, the formed inflorescence is safe to a new leaf, the synergistic effect of the picloram on flower thinning is cooperated, and the synergistic effect of genistein on inhibiting tyrosinase is achieved, so that the differentiation of new flower buds can be controlled from the source, the formed inflorescence can be killed, the formed inflorescence can be fallen off, and finally the formed inflorescence is difficult to mature to form willow catkin, so that the aim of inhibiting the willow catkin is fulfilled.

Further, the preparation method of the pesticide composition for inhibiting catkin comprises the following steps:

a. pumping water into a shearing kettle, gradually adding picloram, naphthylacetamide and genistein in a shearing state, and shearing at normal temperature and normal pressure;

b. conveying the uniformly sheared materials into a sand mill, adding a wetting dispersant and a rheological agent, and sanding the materials by the sand mill until the fineness of the materials is less than 3.5 mu m;

c. conveying the sanded material to a preparation kettle, adding a thickening agent and an antifreezing agent, uniformly mixing, and sampling and detecting;

d. and packaging after the detection is qualified, detecting the package, and warehousing after the detection is qualified.

The invention has the beneficial effects that:

(1) according to the scheme, the genistein is adopted to inhibit the formation of new inflorescences from the growth period of plants, the adopted picloram further inhibits the flower buds which are differentiated, and meanwhile, the naphthylacetamide has the synergistic effect of flower thinning, so that the aim of remarkably improving the removal rate of willow inflorescences is fulfilled by utilizing the multiple effects of the genistein, the genistein and the picloram, and the damage to tender leaves is extremely small;

(2) the adopted picloram, naphthylacetamide and genistein are low in toxicity, free of pollution to the environment and low in cost;

(3) the genistein controls the generation of catkin from the growth period of plants, and removes catkin flower buds in growth; the picloram, the naphthylacetamide and the genistein are cooperated, so that the catkin inflorescence removal rate is high; and the half-life period of the picloram is longer, so that the acting time of the medicine is long, and the supplementary application is not needed in a short period.

Detailed Description

Example 1

The pesticide composition for inhibiting catkin is prepared from the following components:

picloram, naphthylacetamide and genistein as effective components;

an auxiliary material;

a solvent.

The auxiliary materials are wetting dispersant, thickening agent, rheological agent and antifreezing agent.

The wetting dispersant is one or more of alkylphenol polyoxyethylene, propylene glycol block polyether, calcium dodecyl benzene sulfonate, lignosulphonate and tea saponin;

the thickening agent is one or more of xanthan gum and sodium carboxymethyl cellulose;

the rheological agent is one or more of magnesium aluminum silicate and white carbon black;

the antifreezing agent is one or more of ethylene glycol and glycerol;

the solvent is water.

In the catkin-inhibiting pesticide composition of example 1, by weight, 1% of picloram, 0.5% of naphthylacetamide, 0.5% of genistein, 2% of propylene glycol block polyether, 1% of calcium dodecylbenzenesulfonate, 0.1% of xanthan gum, 0.5% of magnesium aluminum silicate, 2% of ethylene glycol, and the balance of water.

The preparation method of the pesticide composition for inhibiting catkin comprises the following steps:

a. pumping water into a shearing kettle, gradually adding picloram, naphthylacetamide and genistein in a shearing state, and shearing at normal temperature and normal pressure;

b. conveying the uniformly sheared materials into a sand mill, adding a wetting dispersant and a rheological agent, and sanding the materials to a fineness of less than 3.5 mu m by the sand mill;

c. conveying the sanded material to a preparation kettle, adding a thickening agent and an antifreezing agent, uniformly mixing, and sampling and detecting;

d. and packaging after the detection is qualified, detecting the package, and warehousing after the detection is qualified.

Example 2:

the present embodiment 2 provides a pesticide composition for inhibiting catkin, which comprises the following components by weight: 5% of picloram, 1% of naphthylacetamide, 1% of genistein, 2% of propylene glycol block polyether, 1% of calcium dodecyl benzene sulfonate, 1% of tea saponin, 0.1% of xanthan gum, 0.05% of sodium carboxymethylcellulose, 0.5% of magnesium aluminum silicate, 4% of ethylene glycol and the balance of water.

Example 3:

the present embodiment 3 provides a pesticide composition for inhibiting catkin, which comprises the following components by weight: 10% of picloram, 1.5% of naphthylacetamide, 1.5% of genistein, 2.5% of propylene glycol block polyether, 1% of calcium dodecyl benzene sulfonate, 1% of tea saponin, 0.1% of xanthan gum, 0.05% of sodium carboxymethyl cellulose, 0.5% of magnesium aluminum silicate, 0.5% of white carbon black, 4% of glycerol and the balance of water.

Example 4:

the present embodiment 4 provides a pesticide composition for inhibiting catkin, comprising, by weight: 15% of picloram, 2% of naphthylacetamide, 1.5% of genistein, 2.5% of alkylphenol polyoxyethylene, 1.5% of calcium dodecyl benzene sulfonate, 1% of tea saponin, 0.1% of xanthan gum, 0.05% of sodium carboxymethyl cellulose, 0.5% of magnesium aluminum silicate, 0.5% of white carbon black, 2% of ethylene glycol, 2% of glycerol and the balance of water.

Example 5:

the present example 5 provides a pesticide composition for inhibiting catkin, which comprises the following components by weight: 20% of picloram, 2.5% of naphthylacetamide, 1.5% of genistein, 2.5% of alkylphenol polyoxyethylene, 1.5% of calcium dodecyl benzene sulfonate, 1% of tea saponin, 2% of propylene glycol block polyether, 0.1% of xanthan gum, 0.05% of sodium carboxymethyl cellulose, 0.5% of magnesium aluminum silicate, 0.5% of white carbon black, 2% of ethylene glycol, 2% of glycerol and the balance of water.

Example 6:

the present embodiment 6 provides a pesticide composition for inhibiting catkin, which comprises the following components by weight: 25% of picloram, 3% of naphthylacetamide, 2.5% of genistein, 2.5% of alkylphenol polyoxyethylene, 1.5% of calcium dodecyl benzene sulfonate, 3% of propylene glycol block polyether, 0.1% of xanthan gum, 0.05% of sodium carboxymethyl cellulose, 1% of magnesium aluminum silicate, 5% of ethylene glycol and the balance of water.

Example 7:

this example 7 discloses a pesticide composition for inhibiting catkin, which comprises the following components in percentage by weight: 26% of picloram, 3.5% of naphthylacetamide, 3% of genistein, 3.5% of lignosulfonate, 1.5% of calcium dodecylbenzene sulfonate, 3% of propylene glycol block polyether, 0.1% of xanthan gum, 0.1% of sodium carboxymethylcellulose, 1% of magnesium aluminum silicate, 0.5% of white carbon black, 5% of glycerol and the balance of water.

Example 8:

the present embodiment 8 provides a pesticide composition for inhibiting catkin, comprising, by weight: 30% of picloram, 4% of naphthylacetamide, 3.5% of genistein, 3.5% of lignosulfonate, 1.5% of calcium dodecylbenzene sulfonate, 3% of propylene glycol block polyether, 0.1% of xanthan gum, 0.1% of sodium carboxymethylcellulose, 1% of magnesium aluminum silicate, 1% of white carbon black, 5% of glycerol and the balance of water.

Example 9:

in this embodiment 9, the pesticide composition for inhibiting catkin comprises, by weight: 30% of picloram, 5% of naphthylacetamide, 3.5% of genistein, 1.5% of calcium dodecyl benzene sulfonate, 5% of propylene glycol block polyether, 0.1% of xanthan gum, 0.1% of sodium carboxymethylcellulose, 1% of magnesium aluminum silicate, 1% of white carbon black, 5% of glycerol and the balance of water.

Experimental example:

the experiments were performed in a certain X and Y willow park, respectively. 60 willow plants with consistent growth conditions are respectively selected in the two gardens, 10 catkin treatment groups are counted by adopting A-J, each catkin treatment group is repeatedly treated by a contrast test for three times, two willow plants are treated each time, and the obtained treatment result is the average value of the three treatments.

In A-J, except for I, the injection method was used, and the other comparative examples were all the foliar spray methods.

The component B is an experimental example, the solvent diluted by 1000 times in the above example 6 is adopted in the experimental example B, and the pesticide composition for inhibiting catkin in the example 6 comprises the following components in percentage by weight: 25% of picloram, 3% of naphthylacetamide, 2.5% of genistein, 2.5% of alkylphenol polyoxyethylene, 1.5% of calcium dodecyl benzene sulfonate, 3% of propylene glycol block polyether, 0.1% of xanthan gum, 0.05% of sodium carboxymethyl cellulose, 1% of magnesium aluminum silicate, 5% of ethylene glycol and the balance of water;

b was experimentally compared with the other 9 comparative examples in A-J on willow trees, where:

experimental example B is:

the above example 6 was diluted 1000 times (250 ppm of picloram + 30ppm of naphthylacetamide +25 ppm of genistein);

nine comparative examples were:

a: clear water control; c: diluting 25% picloram 1000 times (picloram 250 ppm); d: diluting the 3% naphthylacetamide 1000 times (30 ppm of naphthylacetamide); e: 2.5% genistein diluted 1000 times (genistein 25 ppm); f: 25% picloram + 3% naphthylacetamide diluted 1000 times (picloram 250ppm + naphthylacetamide 30 ppm); g: diluting 25% picloram and 2.5% genistein 1000 times (picloram 250ppm and genistein 25 ppm); h: diluting the mixture by 1000 times with 3% of naphthylacetamide and 2.5% of genistein (30 ppm of naphthylacetamide and 25ppm of genistein); i: the commercial 'flower inhibiting I' 20% gibberellic acid A3 is diluted 20 times for injection (gibberellic acid 10000 ppm); j: 10% of paraquat and 25% of glyphosate potassium salt are diluted by 100 times and sprayed (1000 ppm of paraquat and 2500ppm of glyphosate potassium salt).

The comparative experiment is repeated for three times, the application period is the early germination period of the inflorescence of the willow except the comparative example I, the leaf surface uniform spraying mode is adopted, and the application time is 3 months and 15 days in 2019. Randomly selecting 15 branches for each tree to be hung, and inspecting the removal rate of inflorescences and tender leaf damage rate of the willows at intervals of 30 days. Comparative example I A willow was subjected to a punch injection for 2018, 9 and 8 days.

And (3) test results:

1. effect of different agent treatments on inflorescences and young leaves of willows in certain X parks (see table 1).

TABLE 1 Effect of different treatments on inflorescence and young leaves of willow

Catkin treatment group	Willow inflorescence removal rate (%)	Tender leaf damage ratio (%)
			A	0	0
B (the invention)	98.5	1.2
			C	75.2	1.4
D	45.2	1.1
			E	32.5	0
F	85.1	1.2
			G	80.2	1.0
H	36.7	1.1
			I	88.9	1.2
J	98.9	98.7

And (3) test results:

2. effect of different agent treatments on inflorescences and young leaves of willow in certain Y parks (see table 2).

TABLE 2 Effect of different treatments on inflorescence and young leaves of willow

Catkin treatment group	Willow inflorescence removal rate (%)	Tender leaf damage ratio (%)
			A	0	0
B (the invention)	98.9	1.3
			C	75.2	1.1
D	45.2	1.5
			E	32.5	0
F	85.1	1.3
			G	80.2	1.2
H	36.7	1.1
			I	86.4	1.2
J	100	100

As can be seen from tables 1 and 2:

(1) compared with a comparative example, the group B can obviously improve the removal rate of the willow inflorescence, and does not affect the tender leaves basically;

(2) compared with 'flower suppression I', the removal rate of willow inflorescences can be remarkably improved, and the generation of catkin is reduced, so that the risk of causing allergy to personnel is reduced;

(3) compared with the comparative example J, on the basis that the removal rate of the willow inflorescence reaches the requirement, the willow inflorescence removing agent has no obvious damage to the tree body and is safer in actual use.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.