CN111466397B - Composition for preventing and treating silvery spodoptera and application thereof - Google Patents

Composition for preventing and treating silvery spodoptera and application thereof Download PDF

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CN111466397B
CN111466397B CN202010374591.4A CN202010374591A CN111466397B CN 111466397 B CN111466397 B CN 111466397B CN 202010374591 A CN202010374591 A CN 202010374591A CN 111466397 B CN111466397 B CN 111466397B
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cis
dodecene
sex pheromone
composition
budworm
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CN111466397A (en
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黄文坤
梅向东
彭德良
宁君
王留洋
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Institute of Plant Protection of Chinese Academy of Agricultural Sciences
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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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00—Stationary means for catching or killing insects
    • A01M1/02—Stationary means for catching or killing insects with devices or substances, e.g. food, pheronones attracting the insects
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00—Stationary means for catching or killing insects
    • A01M1/10—Catching insects by using Traps
    • A01M1/106—Catching insects by using Traps for flying insects
    • 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
    • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
    • A01N31/02—Acyclic compounds
    • 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
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M2200/00—Kind of animal
    • A01M2200/01—Insects
    • A01M2200/012—Flying insects

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  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Health & Medical Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Insects & Arthropods (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention discloses a composition for preventing and treating silvery moth and application thereof. The composition comprises the sex pheromone of the silver budworm and the sex pheromone analogue, wherein the sex pheromone component comprises cis-7-dodecene acetate, cis-9-tetradecene acetate and cis-11-hexadecene-1-ol, and the sex pheromone analogue is one or more of cis-7-dodecene-N-methyl carbamate, cis-7-dodecene-N, N-dimethyl carbamate and cis-7-dodecene-N-methyl-N-ethyl carbamate. The mass ratio of the sex pheromone to the sex pheromone analogue of the silver budworm is 1: 0.01-0.1. The composition can effectively trap and kill the male moths of the silverworm moths, reduce mating frequency and reduce reproduction rate, thereby achieving the aim of efficiently preventing and controlling the silverworm moths. The method has the advantages of low consumption, environmental friendliness, accurate application in insect condition prediction, mass trapping and mating interference, and great significance in comprehensive treatment of the silver budworm.

Description

Composition for preventing and treating silvery spodoptera and application thereof
Technical Field
The invention belongs to the technical field of biological control, and particularly relates to a composition for controlling silvery spodoptera exigua and application thereof.
Background
The silver budworm (Macdunnougia crassigna Warren) belongs to Lepidoptera and Noctuidae, and is a leaf-eating pest. In China, the insect pest brings serious threats to cotton, peanuts, corns, soybeans, cruciferous vegetables and the like, and is one of the extremely destructive agricultural pests in China. The silver budworm moth occurs in 2-4 generations in China, and the larvae of the silver budworm moth are different in harmful hosts at different periods. Crops such as cotton and beans are mainly harmed in spring, corn and soybean are harmed in summer, and cruciferous vegetables are harmed in autumn. The pests are mixed with common pests such as diamondback moth, cabbage caterpillar and the like in a cruciferous vegetable field, newly hatched larvae are clustered on leaf backs to gnaw mesophyll, upper epidermis is left to influence plant growth, excrement is discharged to pollute vegetable plants, and great influence is caused on yield and quality. The female silverworm armyworm has strong reproductive capacity, eggs are scattered on the leaf back, and 200-400 eggs can be produced per female moth. At present, chemical pesticides are mainly used for preventing and treating the silver budworms, but because the chemical pesticides bring huge pollution to human beings and the environment, and the silver budworms are easy to generate resistance when being used excessively, new methods and new technologies for preventing and treating the pests, which are economical, efficient and good in environmental compatibility, are urgently needed for solving the current environmental pollution and food safety crisis.
Insect sex pheromones called as third-generation green pesticides are concerned by researchers due to the characteristics of high efficiency, no toxicity, no harm to natural enemies, high sensitivity, green environmental protection and the like, and are usually trace chemical substances which are secreted by mature female or male insects and released to the outside of the body to attract the same species of heterosexual insects to mate. At present, more than 2000 kinds of insect sex pheromones and analogues identified and synthesized worldwide are mainly applied to the aspects of prediction and forecast of pests, interference mating, pest quarantine, mass trapping and killing and the like.
Disclosure of Invention
The invention aims to provide a composition for preventing and controlling silverworm moth. The sex pheromone components of the silver budworms are structurally modified to synthesize corresponding pheromone analogues, and trace sex pheromone analogues are added into the sex pheromones, so that the trapping quantity of the silver budworms is further increased.
Based on the above purposes, the invention provides a sex pheromone composition for preventing and treating silver budworm, which comprises a sex pheromone and a sex pheromone analogue, wherein the sex pheromone is one or more of cis-7-dodecene acetate, cis-9-tetradecene acetate and cis-11-hexadecene-1-ol, and the sex pheromone analogue is cis-7-dodecene-N-methyl carbamate, cis-7-dodecene-N, N-dimethyl carbamate and cis-7-dodecene-N-methyl-N-ethyl carbamate.
The mass ratio of the sex pheromone to the sex pheromone analogue is 1 (0.01-0.1).
The mass ratio of cis-7-dodecene acetate, cis-9-tetradecene acetate and cis-11-hexadecene-1-alcohol in the sex pheromone is 3:1: 2.
Optionally, the sex pheromone analogue comprises the following components in percentage by mass: 20% -40% of cis-7-dodecene-N-methyl carbamate, 32% -75% of cis-7-dodecene-N, N-dimethyl carbamate and 0% -35% of cis-7-dodecene-N-methyl-N-ethyl carbamate.
Preferably, the mass percentages of the components in the sex pheromone analogue are as follows: 25% -40% of cis-7-dodecene-N-methyl carbamate, 40% -55% of cis-7-dodecene-N, N-dimethyl carbamate and 10% -30% of cis-7-dodecene-N-methyl-N-ethyl carbamate.
Preferably, the mass percentages of the components in the sex pheromone analogue are as follows: cis-7-dodecene-N-methylcarbamate 30%, cis-7-dodecene-N, N-dimethylcarbamate 50%, cis-7-dodecene-N-methyl-N-ethylcarbamate 20%.
The invention also provides a lure core of the composition for preventing and controlling the silver budworm, wherein the lure core contains sex pheromone and sex pheromone analogues.
The invention also provides application of the composition for preventing and treating the silver budworm moth in preventing and treating the silver budworm moth, wherein the composition is prepared into lure cores containing the sex pheromone and the sex pheromone analogue, each lure core contains 800 mu g of the composition of 600-.
Optionally, the using amount of the lure core is 400m2A/one.
Preferably, the dosage of the lure is 200m2A/one.
The invention has the beneficial effects that: the composition for preventing and controlling the silver budworm moth can effectively trap and kill the silver budworm moth male moth, reduce mating frequency and reduce reproduction rate. The composition has the advantages of trace amount, high efficiency, strong specificity, no toxicity to human and livestock, environmental friendliness and no harm to natural enemies. The sex pheromone composition for the silver budworm provided by the invention can be accurately applied to trapping and interfering mating of the silver budworm in a large quantity, and has important significance for comprehensively treating the silver budworm.
Drawings
FIG. 1 is a schematic diagram of the chemical structure of cis-7-dodecene-N-methylcarbamate.
FIG. 2 is a chemical structure diagram of cis-7-dodecene-N, N-dimethylcarbamate.
FIG. 3 is a chemical structure diagram of cis-7-dodecene-N-methyl-N-ethylcarbamate.
FIG. 4 is a scheme showing the synthesis scheme of cis-7-dodecene-N, N-dimethylcarbamate.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Example 1 preparation of cis-7-dodecene-N, N-dimethylcarbamate:
the synthetic route is shown in FIG. 4, 0.5g Z7-12: OH (2.71mmol) is placed in a 100mL round bottom single neck flask, 15mL redistilled N, N-Dimethylformamide (DMF) and 0.56g (4.07mmol) of acid scavenger K are added2CO3. A solution of DMF in dimethylcarbamoyl chloride (4.07mmol) was slowly added dropwise. After the dropwise addition, the reaction was carried out overnight at room temperature, and the progress of the reaction was monitored by TLC. The reaction was quenched with deionized water, extracted with ethyl acetate (10 mL. times.3), the extract was washed with saturated brine (15 mL. times.3), dried over anhydrous magnesium sulfate, concentrated under reduced pressure, and the crude product was purified by silica gel column chromatography to give cis-7-dodecene-N, N-dimethylcarbamate.
cis-7-dodecene-N, N-dimethylcarbamate (Z) -dodec-7-en-1-yldimethyirarbamate, light yellow oily liquid, yield 62%;1H NMR(300MHz,CDCl3)δ:5.34-5.30(m,2H),3.91-3.89(t,J＝17.4Hz,2H),2.89(s,6H),2.06-2.01(m,4H),1.61-1.54(m,2H),1.47-1.36(m,10H),0.90(t,J＝9.3Hz,3H)；13C NMR(75MHz,CDCl3)δ:154.6,130.3(2C),67.9,37.4-37.2(2C),32.0,29.4-28.7(3C),25.7,22.3,14.0；HR-MS(ESI)m/z:Calcd for C15H30NO2{[M+H]+}256.2231,found 256.2219。
example 2 field bioactivity assay
Preparing a lure:
adding the normal hexane solution containing the sex pheromone into the reversed-mouth rubber head according to the proportion to obtain the sex pheromone lure core (SP) containing the silver budworm. Then adding different sex pheromone analogue components into the lure core, adding 100 mu L of normal hexane after the solution completely permeates into the trans-rubber head, and preparing the lure core containing the sex pheromone and the sex pheromone analogue after the solvent completely volatilizes. Each of the above-mentioned core-attracting treatments was set to 5 replicates, and a core-attracting blank treatment (CK) as a control and a barrel-type trap containing a live female silverworm moth (PE) which had not been mated for 3 to 5 days with three feathers were each set to 5 replicates.
The prepared lure was placed in a bucket type trap, and placed in an area where the spodoptera littoralis occurred severely. To further illustrate the feasibility of this example, 22 specific formulations are given in table 1:
table 1 treatment numbers of different formulations
Figure BDA0002479513550000051
Selecting a region with serious damage of the silver budworm moth, wherein the area is more than 20 mu, the setting height of the lure core is about 120cm, the interval between traps is about 20m, and randomly placing the traps containing the silver budworm moth sex pheromone composition. Three days after the placement, the number of the trapped silverloopers is investigated, the trapping positions are randomly changed, and the investigation is continued for 30 days. The results of the investigation are shown in Table 2:
TABLE 2 trapping test results of different formulations for silver budworm
Figure BDA0002479513550000061
Different lower case letters indicate significant differences at the P < 0.05 level in the Duncan method significance test
As is clear from the results in Table 2, the composition of the present invention has a good trapping effect on Heliothis virescens, and the amount of cis-7-dodecene-N-methylcarbamate, cis-7-dodecene-N, N-dimethylcarbamate, and cis-7-dodecene-N-methyl-N-ethylcarbamate treated with the composition is significantly different (P < 0.05) from the amount of sex pheromone of Heliothis virescens, indicating that cis-7-dodecene-N-methylcarbamate, cis-7-dodecene-N, N-dimethylcarbamate, and cis-7-dodecene-N-methyl-N-ethylcarbamate have a synergistic effect on the activity of sex pheromone of Heliothis virescens, wherein the X11 has the most obvious synergistic effect, and the average trapping amount is 385.67 +/-7.86 heads/trap.
The sex pheromone analogue in the sex pheromone composition of the silver budworm provided by the invention is simple to prepare, and the raw materials are cheap and easy to obtain; after pheromone analogues are added into pheromones, the pheromone composition has obvious synergistic effect on the sex pheromone components, is harmless to people and livestock, and is environment-friendly; strong stress resistance and convenient use. The method can be accurately applied to the insect situation prediction, the interference mating and the mass trapping of the silver budworm, and has important significance for comprehensively treating the silver budworm.
The above disclosure is only for the specific embodiment of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.

Claims (6)

1. A composition for controlling silver budworm comprising a sex pheromone which is cis-7-dodecene acetate, cis-9-tetradecene acetate and cis-11-hexadecene-1-ol, and a sex pheromone analogue which is cis-7-dodecene-N-methylcarbamate, cis-7-dodecene-N, N-dimethylcarbamate, cis-7-dodecene-N-methyl-N-ethylcarbamate; the mass ratio of the sex pheromone to the sex pheromone analogue is 1 (0.01-0.1); the mass ratio of cis-7-dodecene acetate, cis-9-tetradecene acetate and cis-11-hexadecene-1-alcohol in the sex pheromone is 3:1: 2; the sex pheromone analogue comprises the following components in percentage by mass: 25% -40% of cis-7-dodecene-N-methyl carbamate, 40% -55% of cis-7-dodecene-N, N-dimethyl carbamate and 10% -30% of cis-7-dodecene-N-methyl-N-ethyl carbamate.
2. The composition for controlling the silverworm moth according to claim 1, wherein the mass ratio of the sex pheromone to the sex pheromone analogue is 1 (0.01-0.1); the mass ratio of cis-7-dodecene acetate, cis-9-tetradecene acetate and cis-11-hexadecene-1-alcohol in the sex pheromone is 3:1: 2; the sex pheromone analogue comprises the following components in percentage by mass: cis-7-dodecene-N-methylcarbamate 30%, cis-7-dodecene-N, N-dimethylcarbamate 50%, cis-7-dodecene-N-methyl-N-ethylcarbamate 20%.
3. A lure core for use in a composition for controlling Heliothis virescens according to any one of claims 1-2, which includes a sex pheromone and a sex pheromone analogue.
4. Use of the composition for controlling silver budworm according to any one of claims 1 to 2 for controlling silver budworm.
5. The use of the composition for controlling silver budworm moth according to claim 4, wherein the lure cores are prepared, each lure core contains 600-.
6. The use of the composition for controlling the spodoptera littoralis according to claim 5, wherein the attractant core is used in an amount of 200m2A/one.
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EP1146786A2 (en) * 1998-11-06 2001-10-24 Colorado State University Research Foundation Method and device for attracting insects
US10045530B2 (en) * 2015-11-13 2018-08-14 Provivi, Inc. Agricultural pheromone compositions comprising positional isomers
CN109511635B (en) * 2017-09-20 2021-09-14 北京中捷四方生物科技股份有限公司 Pheromone release device system and pest prevention and control method
CN109122686A (en) * 2018-08-25 2019-01-04 中国农业科学院植物保护研究所 A kind of lettuce winter noctuid traps composition and its application
CN110074107A (en) * 2019-05-14 2019-08-02 中国农业科学院植物保护研究所 A kind of Spodopterafrugiperda attractant composition and its application

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