Goldrimmed moth attractant and its preparation method and application
Technical field
The present invention relates to insect technical field of biological control, in particular to a kind of goldrimmed moth attractant and preparation method thereof
And application.
Background technique
Goldrimmed moth (Chilo auricilius) belongs to lepidoptera pyralidae (Pyralidae), a kind of pest of brill moth,
The gramineae crops such as main harm rice, wild rice stem, corn and sugarcane can cause the symptoms such as the withered heart, dead ears and insect bite strain, shadow when serious
Ring the yield and quality of crop.Goldrimmed moth has the characteristics that feeding habits are miscellaneous, hibernacle is more, turn strain and causes harm, and is China's rice evil
One of worm, harm are in rise year by year trend.
China adheres to the principle of " putting prevention first and combining prevention with control ", and chemicals prevention and treatment is thorough etc. with quick and desinsection
Advantage is one of current prevention and treatment method the most effective.But due to the unreasonable and long-term use of medicament, goldrimmed moth
Drug resistance it is more and more significant.Simultaneously because a large amount of uses of medicament, endanger environment, water and people and animals huge.Gyplure has
The features such as environmentally friendly, safe, using it is simple, convenient for promoting.It is main that the population density of pest is reduced by trapping male worm, reduce agriculture
Survival dose and spraying times, for preserving the ecological environment, Development of Organic Agriculture is realized to the important meaning of the integrated control of goldrimmed moth
Justice.
Summary of the invention
The object of the present invention is to provide a kind of goldrimmed moth attractant and its preparation method and application, which is improved
The gathering effect of goldrimmed moth adult improves the sensibility of the insect pest situation forecast to goldrimmed moth, by more accurately to Taiwan
Rice borer carries out prediction, to realize goldrimmed moth comprehensive treatment.
To achieve the above object, a kind of goldrimmed moth attractant provided by the invention, the raw material of the attractant is by weight
Percentage is made of than counting 1~50% gaultherolin and 50~99% striped rice borer attractant, wherein the striped rice borer is drawn
Lure is along 11- hexadecenal, along 13- octadecene aldehyde and along 2 kinds or 3 kinds in 9- hexadecenal.
Further, the raw material weight percent of the attractant than meter by 30~50% gaultherolin and 50~
70% striped rice borer attractant composition.
Still further, the raw material weight percent of the attractant is than counting by 50% gaultherolin and 50%
Striped rice borer attractant composition.
Still further, striped rice borer attractant is by along 11- hexadecenal, suitable 13- octadecene aldehyde and along 16 carbon of 9-
Olefine aldehydr composition, suitable the 11- hexadecenal, along 13- octadecene aldehyde and along 9- hexadecenal weight ratio for 48:4~
6:3~5.
Still further, the raw material weight percent of the attractant is than counting by 50% gaultherolin and 50%
Striped rice borer attractant composition, wherein the striped rice borer attractant is by along 11- hexadecenal, suitable 13- octadecene aldehyde and along 9-
Hexadecenal composition, the suitable 11- hexadecenal are along 13- octadecene aldehyde and along the weight ratio of 9- hexadecenal
48:6:5。
The present invention provides a kind of preparation methods of above-mentioned goldrimmed moth attractant, comprising the following steps:
1) weight percent ratio weighs gaultherolin and striped rice borer attractant;
2) gaultherolin and striped rice borer attractant are uniformly mixed to get goldrimmed moth attractant is arrived.
The application of above-mentioned goldrimmed moth attractant, the application are that attractant is added in lure, then fix lure
It is caught in device in ship type, for traping goldrimmed moth.In the application, in every microlitre of lure, 1.25~12.5 μ g are added.
The beneficial effects of the present invention are:
(insect pheromone) of the invention is combined using striped rice borer gyplure and gaultherolin, can effectively trap and kill two
Change snout moth's larva, control population growth reduces population quantity, while can effectively trap again to goldrimmed moth adult, reduces Taiwan
The population density of rice borer is of great significance to the comprehensive treatment of goldrimmed moth.
Specific embodiment
In order to better explain the present invention, below in conjunction with the specific embodiment main contents that the present invention is furture elucidated, but
The contents of the present invention are not limited solely to following embodiment.
Embodiment 1
The preparation method of goldrimmed moth attractant 1, comprising the following steps:
1) it weighs by weight for 48:6:5 along 11- hexadecenal, along 13- octadecene aldehyde and along 9- hexadecene
Aldehyde is uniformly mixed, obtains striped rice borer attractant;
2) weight percent is than weighing 50% gaultherolin and 50% striped rice borer attractant;
3) gaultherolin and striped rice borer attractant are uniformly mixed to get goldrimmed moth attractant 1 is arrived.
Embodiment 2
The preparation method of goldrimmed moth attractant 2, comprising the following steps:
1) it weighs by weight for 48:4:3 along 11- hexadecenal, along 13- octadecene aldehyde and along 9- hexadecene
Aldehyde is uniformly mixed, obtains striped rice borer attractant;
2) weight percent is than weighing 1% gaultherolin and 99% striped rice borer attractant;
3) gaultherolin and striped rice borer attractant are uniformly mixed to get goldrimmed moth attractant 2 is arrived.
Embodiment 3
The preparation method of goldrimmed moth attractant 3, comprising the following steps:
1) it weighs by weight for 48:5:4 along 11- hexadecenal, along 13- octadecene aldehyde and along 9- hexadecene
Aldehyde is uniformly mixed, obtains striped rice borer attractant;
2) weight percent is than weighing 30% gaultherolin and 70% striped rice borer attractant;
3) gaultherolin and striped rice borer attractant are uniformly mixed to get goldrimmed moth attractant 3 is arrived.
Embodiment 4
The preparation method of goldrimmed moth attractant 4, comprising the following steps:
1) it weighs by weight for 48:6:5 along 11- hexadecenal, along 13- octadecene aldehyde and along 9- hexadecene
Aldehyde is uniformly mixed, obtains striped rice borer attractant;
2) weight percent is than weighing 30% gaultherolin and 70% striped rice borer attractant;
3) gaultherolin and striped rice borer attractant are uniformly mixed to get goldrimmed moth attractant 4 is arrived.
The goldrimmed moth attractant 1~4 that Examples 1 to 4 is obtained is added in lure, and lure is fixed on ship type trapper
Center.The rice field of one 2 mu of selection is uniformly arranged 3 trappers equipped with goldrimmed moth attractant while sky is arranged
White and gyplure trapper is as control.3 repetitions, random alignment is arranged in each processing.Second day after trapper placement
Start to check the quantity for traping goldrimmed moth, the quantity of investigation trapping every day goldrimmed moth, and the mythimna separata of replacement in every two days
Plate is persistently investigated 7 days.Test effect is shown in Table 1.
Table 1 goldrimmed moth attractant, 1~4 pair of goldrimmed moth lures worm effect
Embodiment |
Total trapping amount (head) |
Average trapping amount (head/d) |
1 |
116 |
5.50 |
2 |
51 |
2.42 |
3 |
74 |
3.52 |
4 |
91 |
4.33 |
Test result shows: it is best to goldrimmed moth gathering effect that embodiment 1 obtains goldrimmed moth attractant 1.
Embodiment 1 is prepared to the mixing of goldrimmed moth attractant 1, phenylacetaldehyde and striped rice borer attractant and phenylacetaldehyde
Object, formula such as the following table 2
Several formulas of the attractant of 2 goldrimmed moth of table compare
After being made into lure for four, lure is fixed on to the center of ship type trapper.The paddy field of one 2 mu of selection
Between, it is uniformly arranged 3 trappers equipped with goldrimmed moth attractant while the trapper conduct pair of blank and gyplure is set
According to.3 repetitions, random alignment is arranged in each processing.The number for starting to check trapping goldrimmed moth for second day after trapper placement
Amount, the quantity of investigation trapping every day goldrimmed moth, and the insect-sticking plate of replacement in every two days, are persistently investigated 7 days.Test effect is shown in
Table 3.
The different attractants of table 3 lure worm effect to goldrimmed moth
Group |
Total trapping amount (head) |
Average trapping amount (head/d) |
Blank control |
0 |
0 |
Comparative example 1 |
79 |
3.76 |
Comparative example 2 |
25 |
1.19 |
Embodiment 1 |
116 |
5.5 |
Test result shows: it is best to goldrimmed moth gathering effect that embodiment 1 obtains goldrimmed moth attractant 1.
Other unspecified parts are the prior art.Although above-described embodiment is made that the present invention and retouches in detail
State, but it is only a part of the embodiment of the present invention, rather than whole embodiments, people can also according to the present embodiment without
Other embodiments are obtained under the premise of creativeness, these embodiments belong to the scope of the present invention.