CN107509727B - active composition based on α -pinene, Chilo suppressalis attractant and application - Google Patents

Abstract

The invention discloses an α-pinene-based active composition, comprising the following components in parts by weight: 65-100 parts of α-pinene, 0-15 parts of decanal, and 0-15 parts of 3,7-dimethylnonane. ~15 servings. The present invention also includes a diploid attractant composed of the above-mentioned active composition and a non-volatile organic solvent, and a diploid attractant that encapsulates the diploid attractant in the filaments. The active composition provided by the invention can directly lure the female and male C. chinensis moths, has higher control efficiency on C. chinensis than sexual attractants, can be used as a large number of traps and kills, can significantly reduce the number of C. chinensis adults in the field, and reduce the Progeny population density. It can also be applied to the prediction and forecasting of Diploid, and the amount of trapping insects can accurately predict the occurrence and dynamics of the Diploid population.

Description

A kind of active composition based on α-pinene, diborrile attractant and application

technical field

The present invention relates to an attractant, in particular to an attractant for simultaneously attracting female and male C. chinensis moths.

Background technique

Insect attractants are active substances produced by plants or artificially synthesized that have a behavioral attracting effect on specific insects. In the process of insect host selection, the special "fingerprint" volatile substances of plants often play a key role, and the effective components can be used for pest trapping and control.

US 4880624(A) describes the compounds such as dimethoxybenzene, trimethoxybenzene or guaiacol with one or more of indole, phenylacetaldehyde, anethole, eugenol, cinnamaldehyde and cinnamonitrile Mixed use as an attractant for control of Beetle species of insects. US 4600581(A) describes a synthetic pheromone active composition suitable for Spined SoldierBug, said active composition comprising a mixture of A-terpene alcohol, (E)-2-hexenal and benzyl alcohol. JP56087511 describes insect attractants suitable for Pine Tree Borers, Bark Beetles and Wood Borers comprising lubricating oils, disinfectants and attractant compounds such as salicylaldehyde, water Isobutyl salicylate, n-butyraldehyde, benzyl salicylate, isoamyl salicylate, benzaldehyde, phenylacetaldehyde, methyl phenyl ketone or n-nonanal. JP 59062504(A) describes attractant active compositions suitable for Hylemia species comprising one or more of propionic acid, n-butyric acid, isobutyric acid, n-valeric acid, isobutyric acid Valeric acid, isocaproic acid and 2-phenylethanol.

While the prior art literature describes the use of certain compounds or mixtures of compounds that are attractive to different insect species, it is clear from the diversity of the prior art that specific compounds or compounds are employed as attractants for different insect species The mixture is also different.

In the prior art, sexual attractants are often used to lure C. chinensis, and the principle of action is to trap and kill C. spp. male moths and interfere with the mating between C. spp. female and male moths, thereby reducing the mating opportunities of C. spp. female moths, reducing the Number of eggs laid by female moths. However, the lure target can only be aimed at the males of the chiloquat, and the number of mating times of the males of the chilo moth is as many as 4 to 5 times in their lifetime. When the field population density of Diplodocus chinensis is high, the control effect is limited. CN104782594A discloses a compound attractant capable of attracting both female and male moths of C. chinensis at the same time, but the attractant still needs the cooperation of a sexual attractant to have a good attracting effect, which increases the manufacturing cost of the attractant.

SUMMARY OF THE INVENTION

The primary technical problem to be solved by the present invention is to provide an active composition with strong attracting effect, capable of trapping both female and male moths of Chilo borer, and the formulation is significantly better than a sexual attractant for trapping and killing male moths.

The invention provides an α-pinene-based active composition, comprising the following components in parts by weight: 65-100 parts of α-pinene, 0-15 parts of decanal, 0-15 parts of 3,7-dimethylnonane ~15 servings.

Optionally, the active composition includes the following components by weight: 70-95 parts of α-pinene, 1-7 parts of decanal, and 1-9 parts of 3,7-dimethylnonane.

Preferably, the active composition includes the following components in parts by weight: 80-93 parts of α-pinene, 2-5 parts of decanal, and 3-7 parts of 3,7-dimethylnonane.

Preferably, the active composition includes the following components in parts by weight: 91.2 parts of α-pinene, 3.5 parts of decanal, and 5.3 parts of 3,7-dimethylnonane.

Another object of the present invention is to provide a dill borer attractant, comprising any one of the above-mentioned active compositions for attracting male and female dill borer moths and a non-volatile organic solvent.

Optionally, the non-volatile organic solvent is at least one or a mixture of two or more of liquid paraffin, mineral oil, and sunflower oil. The present invention includes but is not limited to the above-mentioned several non-volatile organic solvents.

Optionally, the mass ratio of the active composition to the non-volatile organic solvent is 100-400 mg: 0.1-0.3 mL, preferably 200-300 mg: 0.15-0.25 mL.

Another object of the present invention is to provide a diploid lure core, which comprises a bidirectional filament sealed at both ends, and the diploid attractant described above is encapsulated in the bidirectional filament. The present invention has no special limitation on the dosage of the encapsulated diploid attractant, and the dosage of the encapsulated attractant can be determined according to the time for attracting dipterocarpus.

Optionally, the S. borer attractant encapsulated in the S. borer lure core of the present invention includes 100-400 mg of the active composition and 0.1-0.3 mL of a non-volatile organic solvent.

Preferably, the attractant of the borer comprises 200-300 mg of the active composition and 0.15-0.25 mL of a non-volatile organic solvent.

Specifically, the active composition can be 120mg, 150mg, 190mg, 250mg, 270mg, 330mg, 360mg, 390mg; the non-volatile organic solvent can be 0.1mL, 0.13mL, 0.18mL, 0.2mL, 0.22mL, 0.25mL, 0.27mL, 0.3mL.

Optionally, the filament is one or both of polyethylene material and polypropylene plastic. The polyethylene material is preferably a high-density polyethylene material, and the present invention includes but is not limited to the above-mentioned materials.

Optionally, the wall thickness of the filament tube is 0.01-0.1 mm, preferably 0.02-0.08 mm, more preferably 0.04-0.06 mm.

Another object of the present invention is to provide an application of the above-mentioned S. chinensis lure core. The S. chinensis lure core is placed in a trap, and the S. chinensis attractant is released to trap female and male S. moth.

Compared with the prior art, the present invention has the following advantages:

The active composition for attracting S. chinensis can simultaneously attract female moths and male moths, the control efficiency of S. chinensis is higher than that of sexual attractants, can be used as a large number of trapping and killing, can significantly reduce the number of adult S. chinensis in the field, and reduce the population density of offspring. . The S. chinensis attractant and lure core provided by the invention can also be applied to the prediction and forecasting of S. chinensis, and the amount of trapped insects can accurately predict the occurrence and dynamics of S. chinensis population. The attractant of the Chinese borer has strong specificity, no resistance, no harm to natural enemies, non-toxic to humans and animals, and is environmentally friendly; strong resistance to stress, not afraid of wind, rain and sunlight; simple preparation and use Simple and long lasting.

Detailed ways

Some pests have obvious hobbies on individual plants. Rational planting of these plants can attract pests to protect the main crop from damage. Such plants are called traps. Vetiver zizanioides has a strong attracting effect on the diploid, attracting the female moth to lay eggs on the vetiver, but it was also found in the experiment that vetiver also has the same effect on the male moth of the diploid. Strong attraction and aggregation.

We purified, separated, and identified the volatile components of vetiver, and compared them with those of rice, and proposed specific compounds and combinations of compounds. The combination of the three compounds of the present invention can attract both female and male C. chinensis moths at the same time, and its field attracting effect is better than the sexual attractants sold on the market.

The active composition based on α-pinene proposed by the present invention comprises the following components in parts by weight: 50-100 parts of α-pinene, 0-15 parts of decanal, 0-15 parts of 3,7-dimethylnonane share. The sources of α-pinene, decanal and 3,7-dimethylnonane are not particularly limited in the present invention, and commercial products may be used.

The borer attractant of the present invention includes the above active composition and a non-volatile organic solvent. The active composition is mixed with the non-volatile organic solvent, and it is a die borer attractant. The dill borer attractant is encapsulated in the fanciful silk, which is the dill borer attracting core of the present invention. The S. chinensis lure core of the present invention is placed in a trap to trap female and male S. chinensis moths, and is used for the forecasting and mass trapping of the S. chinensis period.

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the embodiments, but they should not be construed as limiting the protection scope of the present invention.

Example 1

An active composition capable of simultaneously attracting both male and female moths of C. chinensis is composed of the following components according to their respective weight parts: 75.0 parts of α-pinene, 11.5 parts of decanal, and 13.5 parts of 3,7-dimethylnonane.

Example 2

An active composition capable of simultaneously attracting both male and female moths of C. chinensis comprises the following components according to their respective weight parts: 83.7 parts of alpha-pinene, 7.2 parts of decanal, and 9.1 parts of 3,7-dimethylnonane.

Example 3

An active composition capable of simultaneously attracting both male and female moths of C. chinensis comprises the following components according to their respective weight parts: 90.6 parts of alpha-pinene, 4.4 parts of decanal, and 5.0 parts of 3,7-dimethylnonane.

Example 4

An active composition capable of simultaneously attracting both male and female moths of C. chinensis comprises the following components according to their respective weight parts: 91.2 parts of alpha-pinene, 3.5 parts of decanal, and 5.3 parts of 3,7-dimethylnonane.

Example 5

An active composition capable of simultaneously attracting both male and female moths of C. chinensis comprises the following components according to their respective weight parts: 92.0 parts of alpha-pinene, 3.5 parts of decanal, and 3.5 parts of 3,7-dimethylnonane.

Example 6

An active composition capable of simultaneously attracting both male and female moths of C. chinensis comprises the following components according to their respective weight parts: 86.4 parts of alpha-pinene, 7.2 parts of decanal, and 6.4 parts of 3,7-dimethylnonane.

Example 7

An active composition capable of simultaneously attracting both male and female moths of C. chinensis comprises the following components according to their respective weight parts: 86.1 parts of alpha-pinene and 13.9 parts of 3,7-dimethylnonane.

Example 8

An active composition capable of simultaneously attracting both male and female moths of the chili borer is composed of the following components according to their respective weight parts: 97.7 parts of alpha-pinene and 2.3 parts of decanal.

Example 9

250 mg of the active compositions of Examples 1 to 8 of the present invention were dissolved in 0.25 mL of liquid paraffin to obtain a dipterocarp attractant. The prepared S. chinensis attractant was encapsulated in a polyethylene pipe fan wire sealed at both ends to serve as a S. spp. lure core. The tube wall thickness of the filament is 0.05mm.

Example 10

150 mg of the active compositions of Examples 1 to 8 of the present invention were dissolved in 0.2 mL of sunflower oil to obtain a dipterocarp attractant. The prepared diploid attractant was encapsulated in polypropylene tube filaments sealed at both ends to serve as a diploid lure. The tube wall thickness of the filament is 0.1 mm.

Example 11

350 mg of the active compositions of Examples 1 to 8 of the present invention were dissolved in 0.3 mL of mineral oil to obtain a dipterocarp attractant. The prepared S. chinensis attractant is encapsulated in a high-density polyethylene pipe fan wire with both ends sealed to serve as a S. spp. lure core. The tube wall thickness of the filament is 0.02 mm.

Example 12

In order to further illustrate the feasibility of the lubricating agent provided by the present invention, the following description will be given in conjunction with specific experiments.

From April 25th to June 15th, 2016, the trapping effect test of the lure of the sorghum borer was carried out in Tangxi Town, Wucheng District, Jinhua City, Zhejiang Province.

The rice variety, growth, fertilizer and water management conditions were consistent, and the contiguous paddy field with an area of 200 mu was used as the experimental field, and the diploid lure cores of different formulas obtained in Example 9 were fixed in the special trap for diploid, for trapping diploid Adult borer. 10 points were randomly set for each formula of the lure lure, and the commercial sex lure was used as the control. Investigate the number of trapped adults of Dillite borer every 3 days for 50 days.

The test results are as follows:

Table 1. Attractive effect of different formulations of S. chinensis attractants on S. chinensis adults

Wherein the comparative example adopts the diploid sex attractant provided by Ningbo Newcom Biotechnology Co., Ltd. to lure the silk core.

The test results show that the trapping amount of C. chinensis male moths provided by the present invention is significantly higher than that of the comparative example, and a large amount of C. chinensis female moths can be trapped, while the C. chinensis sex attractants can only trap male moths. The attractant provided by the invention has high trapping activity, and can improve the prediction and forecast accuracy of the occurrence period of the chilo borer. In particular, the attractant provided by the present invention can simultaneously trap a large number of C. chinensis male moths and female moths, can reduce the number of C. chinensis adults in the field, reduce the population density of offspring, and has higher control than the currently commercially available C. chinensis sex attractants. efficiency.

The S. chinensis attractant has strong specificity, no resistance, no harm to natural enemies, no harm to humans and animals, and is environmentally friendly; strong resistance to stress, not afraid of wind, rain and sunlight; simple preparation, simple use, It has a long lasting effect, and the attracting activity of the worms lasts for more than 50 days.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (9)

1. an active composition based on α-pinene, is characterized in that, comprises the following components by weight: 70～95 parts of α-pinene, 1～7 part of decanal, 3,7-dimethylnonyl 1 to 9 parts of alkane. 2. The active composition according to claim 1, characterized in that it comprises the following components by weight: 80-93 parts by weight of alpha-pinene, 2-5 parts by decanal, 3,7-dimethylnonane 3 to 7 servings. 3 . A dipterocarp attractant, characterized in that it comprises the active composition according to any one of claims 1 to 2 and a non-volatile organic solvent. 4 . 4 . The lubricating agent for the borer according to claim 3 , wherein the non-volatile organic solvent is one or a mixture of more than two in liquid paraffin, mineral oil and sunflower oil. 5 . 5 . The attractant for the borer according to claim 3 or 4 , wherein the mass ratio of the active composition to the non-volatile organic solvent is 100-400 mg: 0.1-0.3 mL. 6 . 6 . A diploid lure core, characterized in that it comprises a bidirectional filament sealed at both ends, wherein the dimorphic filament is encapsulated with the diploid attractant according to any one of claims 3 to 5 . 7 . 7 . The lure core according to claim 6 , wherein the material of the filament is one or both of polyethylene and polypropylene plastics. 8 . 8 . The lure core according to claim 6 or 7 , wherein the wall thickness of the filament tube is 0.01-0.1 mm. 9 . 9. The application of the S. chinensis lure core according to any one of claims 6 to 8, characterized in that, placing the S. chinensis lure core in a trap, releasing the S. chinensis attractant, trapping Diploid male and female moths.