CN104255355A - Banker plant system for preventing and curing rice leaf folders and rice stem borers - Google Patents
Banker plant system for preventing and curing rice leaf folders and rice stem borers Download PDFInfo
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Abstract
The invention discloses a banker plant system for preventing and curing rice leaf folders and rice stem borers. The banker plant system comprises three portions, namely, (1) a vector plant, (2) replacement hosts and (3) a parasitic wasps. The vector plant is vetiver grass belongs to the grass family; the vetiver grass is a luring plant of borers (pink rice borers and the rice stem borers); the replacement hosts are the pink rice borers and the rice stem borers laying eggs in the vetiver grass; the pink rice borers and the rice stem borers are continuously lured to the vetiver grass to lay eggs in a rice growing season to provide hosts for the parasitic wasps; the parasitic wasps are egg parasitic wasps such as rice borer trichogramma and yellow borer trichogramma; the vetiver grass is planted at rice field edges or ridges; 10 to 50 bundles of vetiver grass is planted in every mu of rice field in a dispersion or gathering mode and the bundle distance is from 2m to 3m. The banker plant system for preventing and curing the rice leaf folders and the rice stem borers continuously breeds the parasitic wasps for the rice leaf folders and the rice stem borers (the pink rice borers and the rice stem borers), effectively improves the biological preventing and curing effect, reduces 2 to 3 times of chemical pesticide utilization in one season, is long in acting time, simple and easy to operate and strong in practicability.
Description
Technical field
The present invention relates to crop pest technical field of biological control, be specifically related to a kind of vector plant system for rice leaf roller and the snout moth's larva of rice.
Background technology
Vector plant system (banker plant system) is a kind of biological control new technology of development recently, also known as open natural enemy feeding system (open-rearing system), mainly comprise vector plant (banker plants), substitute food (alternative food) and beneficial organism (beneficial organisms) three key elements, a complete vector plant system at least comprises wherein two.Wherein, vector plant is topmost key element, is generally non-targeted crop, or wild plant, but also can be that several plant mixes.It is mainly used to raise Hosts or prey to provide food resource to beneficial organism, or vector plant itself is directly used to raise beneficial organism (as predator).
Before target pest causes harm crop, preventative beneficial organism population can be set up by vector plant, and this individual system always can continued propagation natural enemy populations, and maintain high-efficiency continuous control effects at Growing Season of Crops.This advantage be conventional natural enemy propagation release tech can not than, do not hinder other farming to operate simultaneously yet.
At present, along with the further investigation to vector plant system, the case of more existing vector plant system applications of result, especially carries the vector plant of the plant-feed insect of single-minded feeding habits.As, Dutch organic pimento producer makes vector plant with Chinese cabbage in early days at Growth of Pepper, and the aphid on Chinese cabbage is diet food aphid cecidomyiia as an alternative.The more ripe vector plant system developed in recent years also has " viewing and admiring capsicum-crafty minute pirate bugs " to prevent and treat thrips on ornamental plants, " corn-meadow unguiculus mite-predation fly " vector plant systemic control tetranychid and " pawpaw-aleyrodid-parasitic wasp " vector plant systemic control Trialeurodes vaporariorum Westwood etc.
Rice leaf roller, striped rice borer and pink rice borer are Occurrences important on paddy rice, in recent years due to reasons such as high-yield rice variety popularization, the increase of nitrogenous fertilizer usage amount, global warmings, make the population quantity of rice leaf roller and the snout moth's larva of rice, Disaster Area significantly rises.Meanwhile, due to the scarcity of resistant rice varieties, use chemical insecticide to be still the Main Means preventing and treating rice leaf roller and the snout moth's larva of rice at present, and dosage is large, the dispenser frequency is high.Irrational Use of Drugs has killed and wounded rice field natural enemy in large quantities, and heavy damage agricultural ecological balance, makes insect lose natural contral, forms vicious circle, finally causes pest resistance to insecticide, even to cause without medicine can situation.At paddy growth excessive use chemical pesticide in early stage, kill and wound a large amount of natural enemy and cause paddy ecosystem nature Biological control efficiency to go down, also results in rice fulgorid outburst and be difficult to control to wait more serious problems.On the other hand, a large amount of chemical pesticide that uses also results in serious Pesticide Residue, especially rice earing stage control rice leaf roller and striped rice borer, very easily causes paddy residue of pesticide to exceed standard, causes serious threat to human health.Researching and developing new rice leaf roller and the sustainable Prevention Technique of the snout moth's larva of rice, reduce the use of chemical pesticide, is the active demand that grain security is produced.
Summary of the invention
For existing rice leaf roller and snout moth's larva of rice control produced problem, the invention provides a kind of vector plant system for preventing and treating rice leaf roller and the snout moth's larva of rice, its objective is that the existing rice leaf roller of solution and snout moth's larva of rice control chemical pesticide use too much, rice field ecology is unbalance, rice residue of pesticide exceed standard, many serious problems such as environmental pollution, by at rice field border planting vector plant (vetiver), constant breeding parasitic wasp, as parasitic wasp kind storehouse for rice field provides honeybee source, improve parasitic wasp population quantity in rice field and the biological control effect to rice leaf roller and the snout moth's larva of rice thereof.The present invention has lasting Ecological Control effect to rice leaf roller and the snout moth's larva of rice, and simple to operate, with low cost.
Trichogramma spp Hymenoptera Trichogrammatidae Trichogramma spp is a kind of ovum phase parasitic wasp.Ovum produces in host egg by its adult, takes food, grows and cause host egg dead in host egg, thus reaches the object eliminated by insect before harm.Oophagous trichogrammae is a kind of broad spectrum activity parasitic wasp, generally the ovum of the parasitic multiple lepidoptera pest of energy.The multiple rice field lepidoptera pests such as the equal energy of Trichogramma chilonis, Trichogramma parasitic striped rice borer, paddy stem borer, rice leaf roller, pink rice borer, rice plant skipper, rice green caterpillar, have been used to rice field and have manually discharged water prevention rice borer.Research shows that utilizing oophagous trichogrammae (Trichogramma, Trichogramma chilonis etc.) to prevent and treat rice leaf roller, striped rice borer and pink rice borer all has good control efficiency.But, artificial release natural enemy Financial cost is high, take labour, technical requirement is high, and effect is disposable, the oophagous trichogrammae of artificial release is difficult to set up the population continued in rice field, and these shortcomings all seriously hinder oophagous trichogrammae applying at Control Insect Pests In Rice Field.If the oophagous trichogrammae of release at paddy ecosystem energy continued propagation, keep higher population quantity, just can realize the lasting control to rice leaf roller and the snout moth's larva of rice, and desirable solution, be exactly the vector plant system setting up energy continued propagation natural enemy in paddy ecosystem.
Vetiver Vetiveria zizanioides, belonging to grass family Vetiveria, is herbaceos perennial.Vetiver is as the field Ecological Control luring worm plant to be used to the snout moth's larva of rice in recent years.The snout moth's larva of rice (pink rice borer Sesamia inferens, striped rice borer Chilo suppressalis) is lured collection to lay eggs in a large number to vetiver, especially pink rice borer occur from generation to generation irregular, from generation to generation between overlapping serious, continue to lay eggs season on vetiver and quantity is many at whole paddy growth, start to mid-October at the beginning of 5 months from late April, vetiver continues carry abundant rice borer worm's ovum, for oophagous trichogrammae continued propagation provides desirable host.
Although oophagous trichogrammae can survive the winter in locality, population quantity of surviving the winter is extremely low, and expanding population by natural breed needs long time, generally just can reach higher population at At The Spike Stage of Late Rice.Therefore, higher oophagous trichogrammae population must be set up at the spawning period of overwinter generation snout moth's larva by the mode of artificial infection, the BIOLOGICAL CONTROL efficiency that this vector plant system competence exertion is desirable.The vetiver of some in the kind of limit, rice field, annual May, the snout moth's larva of rice of overwinter generation is lured collection to lay eggs to vetiver, by the artificial trichogramma releases in vetiver limit, vetiver is set up oophagous trichogrammae population, maintains high population at whole rice growing season and be continuously rice field parasitic wasp natural enemy is provided.Because vetiver is a kind of dead-end trap plant for the snout moth's larva of rice, the ovum energy normal development hatching of snout moth's larva on vetiver, but its larva can not complete the history of life or only can complete the history of life on a small quantity on vetiver, therefore vetiver does not become the risk in storehouse, insect worm source.
In addition, vetiver has been widely used in the solid geotechnological journey on water and soil conservation, highway, railway abrupt slope in China, is not a kind of exotic plant.Simultaneously its root system is taproot, does not have stolon, only blooms and infecundity, can only carry out vegetative propagation, therefore can not perniciously spread, weediness, and thus the application of vetiver can not cause ecological risk.So far, the application of vector plant system on rice leaf roller and snout moth's larva of rice control have not been reported.
" vetiver-snout moth's larva of rice (pink rice borer, striped rice borer)-oophagous trichogrammae " defines a complete vector plant system for preventing and treating rice leaf roller and the snout moth's larva of rice.
Therefore, one aspect of the present invention, provides a kind of vector plant system for rice grub, comprises three parts: 1) vector plant; 2) Hosts; 3) parasitic wasp, wherein said insect is rice leaf roller and the snout moth's larva of rice.
In some preferred modes, vector plant is gramineous plants vetiver, and vetiver is a kind of Trap plants, lures rice borer of catchmenting to lay eggs on vetiver plant.
Preferably, Hosts is the snout moth's larva of rice (pink rice borer, striped rice borer).In rice field, pink rice borer, striped rice borer are lured collection to lay eggs to vetiver plant, and can be continued to keep higher ovum density in whole growth period duration of rice.Vetiver has antibiosis for snout moth's larva of rice larva, and snout moth's larva of rice larva can not complete the history of life on vetiver, and vetiver can not become the storehouse, a worm source of rice field snout moth's larva.
Preferably, natural enemy parasitic wasp is mainly oophagous trichogrammae.Comprise Trichogramma chilonis and Trichogramma etc., be broad spectrum activity parasitic wasp, the ovum of the multiple rice field lepidoptera pests such as energy parasitic striped rice borer, paddy stem borer, rice leaf roller, pink rice borer, rice plant skipper, rice green caterpillar.Artificial trichogramma releases around vetiver, vetiver is set up oophagous trichogrammae population, and constantly breed oophagous trichogrammae at whole rice growing season, vector plant is as parasitic wasp kind storehouse, parasitic wasp to be moved into rice field by vector plant, for the biological control of the rice field lepidoptera pests such as rice leaf roller, striped rice borer and pink rice borer.
The described vector plant vetiver prevented and treated for rice leaf roller and the snout moth's larva of rice, be planted on the ridge of rice field, every mu of Rice Cropping vetiver 10-50 clump, the clump spacing of vetiver is 2m ~ 3m.Vetiver the best is all planted with rice field surrounding.
Described, oophagous trichogrammae connect the honeybee time, artificial trichogramma releases at the beginning of 5 months by the end of April every year, puts 1-2 time.
On the other hand, the invention provides a kind of vector plant system as the purposes of preventing and treating rice leaf roller and the snout moth's larva of rice, wherein said vector plant system comprises: 1) vector plant; 2) Hosts; 3) parasitic wasp.
In some preferred modes, vector plant is vetiver, and belong to grass family Vetiveria, vetiver is a kind of attractive plants, lures rice borer of catchmenting to lay eggs on vetiver plant, ovum energy normal incubation, and the snout moth's larva of rice can not complete the history of life on vetiver simultaneously.
Preferably, Hosts is pink rice borer and striped rice borer, and pink rice borer and striped rice borer lay eggs as the host of parasitic wasp on vetiver plant.
Preferably, natural enemy parasitic wasp is mainly oophagous trichogrammae.Comprise Trichogramma chilonis and Trichogramma etc., be broad spectrum activity parasitic wasp, the multiple rice field lepidoptera pests such as energy parasitic striped rice borer, paddy stem borer, rice leaf roller, pink rice borer, rice plant skipper, rice green caterpillar.Artificial trichogramma releases around vetiver, vetiver is set up oophagous trichogrammae population, and constantly breed oophagous trichogrammae at whole rice growing season, vector plant is as parasitic wasp kind storehouse, parasitic wasp to be moved into rice field by vector plant, for the biological control of the rice field lepidoptera pests such as rice leaf roller, striped rice borer and pink rice borer.
Preferably, wherein parasitic wasp by carrying out parasitism to the ovum of pink rice borer, striped rice borer on vetiver, thus continuation prevents and treats pink rice borer, striped rice borer to the harm of paddy rice.
The described vector plant vetiver prevented and treated for rice leaf roller and the snout moth's larva of rice, be planted on the ridge of rice field, every mu of Rice Cropping vetiver 10-50 clump, the clump spacing of vetiver is 2m ~ 3m.Vetiver the best is all planted with rice field surrounding.
Described, oophagous trichogrammae connect the honeybee time, artificial trichogramma releases at the beginning of 5 months by the end of April every year, puts 1-2 time.
Beneficial effect
Vector plant system of preventing and treating for rice leaf roller and the snout moth's larva of rice of the present invention, compared with prior art there is following advantage and effect: 1) vector plant vetiver is lure worm plant simultaneously, vetiver is planted in limit, rice field, rice borer of catchmenting is lured to lay eggs on vetiver plant, on vetiver plant, enriched worm's ovum simultaneously, reduces snout moth's larva in rice field and cause harm.2) the parasitic wasp Trichogramma chilonis of this system and Trichogramma system broad spectrum activity parasitic wasp, host range is wide.Be the parasitic wasp of the paddy rice lepidoptera pests such as rice leaf roller, striped rice borer, pink rice borer, paddy stem borer, rice plant skipper and rice green caterpillar simultaneously, nearly all paddy rice lepidoptera pest can be controlled.3) lasting, efficient to the control effects of paddy rice lepidoptera pest.Set up parasitic wasp population at the beginning of 5 months from late April, can last till by the end of October, run through whole rice growing season, this system can the nature enemy in amount of continuous release abundance in rice field, effectively control paddy rice lepidoptera pest.4) low cost, simple to operate.Vetiver is perennial, only need once plant, easy cultivation management, and need seldom artificial, the expense of foundation and the system of maintenance is very low.Only need to connect 1-2 oophagous trichogrammae at the egg production peak time of overwinter generation snout moth's larva every year, can population be set up, and at whole rice growing season continued propagation.5) use of rice field chemical insecticide can effectively be reduced.The generation of rice leaf roller in field is frequent and the duration is long, and the chemical insecticide of use is also maximum.This vector plant system, before rice leaf roller causes harm paddy rice, sets up preventative parasitic wasp population in paddy system, and rice leaf roller is moved into when causing harm and can control effectively, per season paddy rice can reduce medication 2-3 time.6) without ecological risk.Because vetiver is a kind of dead-end trap plant for the snout moth's larva of rice, the ovum energy normal development hatching of snout moth's larva on vetiver, but its larva can not complete the history of life or only can complete the history of life on a small quantity on vetiver, therefore vetiver does not become the risk in storehouse, insect worm source, in addition, vetiver root system is the system of taproot, there is no stolon, only bloom and infecundity, can only vegetative propagation be carried out, can not pernicious diffusion weediness, therefore the application of vetiver also can not cause ecological risk.
Accompanying drawing specification
Fig. 1 is pink rice borer ovum amount occurrence dynamics schematic diagram in the vetiver of limit, rice field.
Fig. 2 is the pink rice borer percentage of egg parasitism occurrence dynamics schematic diagram of vetiver vector plant system.
Fig. 3 is oophagous trichogrammae population quantity occurrence dynamics schematic diagram in vetiver vector plant system.
Embodiment
Below by the present invention is described in further detail by way of example, put into practice the present invention to enable those skilled in the art.Should be appreciated that and can adopt other embodiments, and suitable change can be made and without departing from the spirit and scope of the present invention.In order to avoid for enabling those skilled in the art put into practice details unnecessary the present invention, specification may eliminate some known to those skilled in the art information.Therefore, below describe in detail and should not understand with restrictive meaning, and scope of invention is only defined by claims.
Limit, embodiment 1 rice field vetiver lures collection pink rice borer to lay eggs and quantity occurrence dynamics
Test is held at Jinhua, Zhejiang and two places, Yin state.At rice growing season, investigate the pink rice borer ovum quantity and occurrence dynamics of planting on the vetiver of limit, rice field.Begin by the end of April to late October, every investigation in 10 days 1 time.Extract vetiver acrial part with the neat mud of sharp knife, count the pink rice borer ovum amount in every clump of vetiver leaf sheath, each investigation 10 clumps.
Result shows, on vetiver, pink rice borer ovum just reaches higher quantity by the end of April, and more than every clump of 200 ovum, 5-6 is the highest for the whole year month, every clump of ovum amount 300-900 grain, and in population quantity lower 7-8 month and October, every clump also can reach more than 100.
In a word, in whole Rice Production season, vetiver keeps high-caliber pink rice borer ovum, enough ensure effective operation (see Fig. 1) of vector plant system.
Embodiment 2 vector plant system constructing
Vetiver is planted on limit, rice field or ridge, every mu of Rice Cropping vetiver 10-50 clump, and the tiller number of vetiver can reach tens of and even up to a hundred, and the clump spacing of vetiver is 2m ~ 3m, all plants vetiver the best with rice field surrounding ridge.Vetiver is planted in the next year behind limit, rice field by the end of April at the beginning of 5 months, during pink rice borer winter generation adult spawning peak, honeybee card is placed on cus-cus thick grass limit, artificial infection oophagous trichogrammae, one or more compounds such as Trichogramma, Trichogramma chilonis, but be sociales with Trichogramma, every 6 clumps of vetiver 1-2 honeybee cards, continuous artificial infection 2 times, interval 5-10 days between twice.Like this, complete for the vector plant system constructing preventing and treating rice leaf roller and the snout moth's larva of rice, vector plant is vetiver, and Hosts is pink rice borer ovum, and parasitic wasp is the oophagous trichogrammaes such as Trichogramma.
The pink rice borer percentage of egg parasitism of limit, embodiment 3 rice field vetiver vector plant system and oophagous trichogrammae Number dynamics
In the 5-10 month in 2013, carry out the investigation of the pink rice borer parasitic rate of vetiver vector plant system and the Number dynamics of oophagous trichogrammae in Yin state, Ningbo.In placing honeybee clamping honeybee twice on vetiver limit with the first tenday period of a month in May by the end of April, honeybee kind is Trichogramma, starts sampling from mid-May.Concrete grammar is the acrial part that neat mud extracts vetiver, gathers pink rice borer ovum and is placed in culture dish, the oophagous trichogrammae that counting is sprouted wings and not by the ovum of parasitism, calculate parasitic rate, add up the oophagous trichogrammae amount on every clump of vetiver, each investigation 5 clumps, not connect oophagous trichogrammae for contrast.
Result shows, after connecing honeybee, on vetiver, pink rice borer ovum is 10.2-67.39% at the parasitic rate of the 5-10 month, and mean parasitized rate is 42.49%; The mean parasitized rate not connecing honeybee contrast is 15.96%, fluctuation range 0-38.76%.Contrast is the 5-7 month particularly significantly, and the monthly average parasitic rate connecing pink rice borer ovum on honeybee vetiver is respectively 28.23%, 52.70% and 48.47%, and the contrast not connecing honeybee is then only 0.48%, 4.76% and 8.06% (see Fig. 1).The trend connecing oophagous trichogrammae quantity after honeybee on vetiver and parasitic rate is close, in paddy growth early stage, namely establish higher oophagous trichogrammae population, and the Population Level of contrast is extremely low.At whole rice growing season, connect oophagous trichogrammae on honeybee vetiver and remain on higher level, average 192.2/clump, and contrast is 37.9/clump (see Fig. 2).Test shows, after manually connecing honeybee, the pink rice borer ovum on vetiver all keeps higher parasitic rate and oophagous trichogrammae population quantity at whole rice growing season, especially in paddy ecosystem, sets up high-caliber oophagous trichogrammae population in early days at paddy growth.
Embodiment 4 vetiver vector plant system is to the field parasitic rate of rice leaf roller, striped rice borer and pink rice borer
In 6-10 month in 2013, in Jinhua, Zhejiang Province and two places, Yin state, carry out the investigation of vetiver vector plant system to the parasitic rate of rice field rice leaf roller, striped rice borer and pink rice borer.Rice strain is transplanted in basin alms bowl, then sarong is put into, access rice leaf roller, pink rice borer, rice stem borer respectively to lay eggs in rice strain 2d, being placed on cultivation on ridge with 5 methods has in the rice field of 30 clumps of vetiver vector plant, regain after 3d, under double shell visor, count Trichogramma ovum and total ovum number in indoor.Monthly investigate twice.
Result shows: plant and have in the rice field of vetiver vector plant, remained on higher level by the parasitic rate of Trichogramma at the ovum of its rice leaf roller of whole rice growing season, striped rice borer and pink rice borer always, the parasitic rate of Jinhua point rice leaf roller reaches 50.24-61.37%, average 56.35%, the parasitic rate of Yin state point rice leaf roller reaches 50.78-61.22%, average 56.83%.And it is all remarkable in vector plant system field at whole Growing season to contrast field, the mean parasitized rate 18.87% of Jinhua point rice leaf roller, Yin state point 16.95%, especially remain on extremely low level at the natural parasitic rate of the 6-7 month, only have larger rising at its oophagous trichogrammae honeybee parasitic rate of the later stage of 9-10 month paddy growth.Situation and the rice leaf roller of pink rice borer and striped rice borer are similar, and the mean parasitized rate of two points in pink rice borer ovum Jinhua and Yin state is respectively 52.83% and 49.85%, and its contrast is respectively 12.58% and 11.60%; The mean parasitized rate of two points in striped rice borer ovum Jinhua and Yin state is respectively 68.24% and 65.16%, and its contrast is respectively 21.25% and 26.85%.The percentage of egg parasitism of rice leaf roller and the snout moth's larva of rice in rice field is significantly improved in limit, rice field layout vetiver vector plant system, implement effective control, especially early stage at paddy growth, in rice field, establish very high oophagous trichogrammae population, important function has been played to the control of paddy rice lepidoptera pest.
Table 1 vetiver vector plant system is to the field parasitic rate of rice leaf roller, striped rice borer and pink rice borer
The different planting number of embodiment 5 vector plant vetiver is on the impact of oophagous trichogrammae quantity and rice leaf roller and snout moth's larva of rice control efficiency in rice field
Test and carry out at Jinhua, Zhejiang in the 7-9 month in 2013, investigate in the impact of the different planting number of limit, rice field vector plant vetiver on the oophagous trichogrammae quantity in rice field and rice leaf roller, snout moth's larva of rice control efficiency.In rice field, oophagous trichogrammae quantity adopts and glues card monitoring, and glue and be stuck in distance vetiver vector plant 15m, that glues card exceeds rice strain 5cm below, repeat 10 times, in rice field, place 24h at every turn, bring back indoor and count oophagous trichogrammae quantity under double shell visor, every 15d once, finally overall average is calculated.Investigate every 15d the withered heart rate that rice leaf roller leaf roll rate, striped rice borer and a pink rice borer causes, calculate the overall average of 3 months investigation results.Plant 30 clumps of vetivers with balk but do not connect the field of oophagous trichogrammae for positive control (contrasting 1 see table 2), separately establishing a blank (contrasting 2 see table 2).
Result shows: have oophagous trichogrammae quantity in the rice field of vetiver vector plant system to be significantly higher than contrast, maximum with oophagous trichogrammae in the process rice field of 40,50 clumps of vetiver vector plant, is respectively 5.4 times and 5.1 times of blank, 30,20 and 10 clumps/667m
2in the process rice field of vetiver vector plant, oophagous trichogrammae quantity is then respectively 4.0,3.4 and 2.4 times of blank.Plantation vetiver (30 clumps/667m
2) do not connect the contrast of oophagous trichogrammae and blank oophagous trichogrammae quantity close.The different planting number plantation vetiver vector plant in limit, rice field all has good control efficiency to rice leaf roller, striped rice borer and pink rice borer, its rice leaf roller leaf roll rate, striped rice borer, the withered heart rate of pink rice borer are all remarkable in blank, and only planting the contrast that vetiver do not connect oophagous trichogrammae does not then have preventive effect to rice leaf roller and have favorable effect to the snout moth's larva of rice.
The different planting number of table 2 vector plant vetiver is on the impact of oophagous trichogrammae population quantity and rice leaf roller and snout moth's larva of rice control efficiency in rice field
Note: contrast 1: every 667m
2rice field ridge is planted vetiver 30 clumps, do not connect oophagous trichogrammae; Contrast 2: blank
Embodiment 6 application vector botanical system reduces insecticide and uses and economic benefit
2013, carry out in Jinhua, Zhejiang Province and two places, Ningbo respectively applying the assessment that vetiver vector plant reduces insecticide use and economic benefit thereof.Often establish 3 points in zones of different, often is repeated for 3 times, implements vetiver vector plant systemic control rice leaf roller and the snout moth's larva of rice in these fields, carries out regular population dynamic monitoring, if the density of insect does not reach index for control, does not execute insecticide control; If exceed index for control, then execute insecticide control.To press the local peasant being accustomed to going and buy Chinese medicine from anti-field for contrast.
Result shows (see table 3), in Jinhua and two places, Ningbo, adopts vector plant system respectively can decreased average medication 2.8 times and 2.2 times compared with the control custom paddy rice of per season of local farmers, average save medicine originally, cost reaches 81.0 yuan and 71.3 yuan respectively.
Table 3 is implemented vetiver vector plant system and is reduced insecticide service condition and economic benefit
In sum; these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, therefore; all any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. for a vector plant system for rice grub, it is characterized in that, this vector plant system comprises: 1) vector plant; 2) Hosts; 3) parasitic wasp, wherein said insect is the snout moth's larvas of rice such as rice leaf roller, striped rice borer and pink rice borer.
2. vector plant system according to claim 1, is characterized in that, vector plant is grass family vetiver; Hosts comprises the snout moth's larva of rice such as pink rice borer, striped rice borer that vetiver lays eggs; Parasitic wasp is the parasitic wasp Trichogramma, Trichogramma chilonis etc. of rice leaf roller and the snout moth's larva of rice.
3. vector plant system according to claim 2, is characterized in that, vetiver is planted on limit, rice field or ridge, every mu of paddy field cultivation vetiver 10-50 clump, and dispersion or gathering, clump spacing is 2m ~ 3m.
4. vector plant system according to claim 2, it is characterized in that, vetiver lures worm plant, rice borer of catchmenting is lured to lay eggs on vetiver season at whole paddy growth, be continuously oophagous trichogrammae and host is provided, the larva of the snout moth's larva of rice almost can not complete the history of life on vetiver, and vetiver can not become the storehouse, worm source of the snout moth's larva of rice.
5. vector plant system according to claim 2, it is characterized in that, after annual overwinter generation snout moth's larva at the beginning of 5 months is by the end of April lured collection to lay eggs to vetiver, on vetiver limit, artificial trichogramma releases 1-2 time, vetiver is set up the egg parasitoids population of rice leaf roller and the snout moth's larva of rice.
6. the purposes of vector plant system in preventing and treating as water prevention rice pest rice leaf roller, striped rice borer and pink rice borer, wherein said vector plant system is made up of following part: 1) vector plant; 2) Hosts; 3) parasitic wasp; Wherein, vector plant is grass family vetiver; Hosts comprises the snout moth's larva of rice such as pink rice borer, striped rice borer that vetiver lays eggs; Parasitic wasp is the oophagous trichogrammae such as parasitic wasp Trichogramma, Trichogramma chilonis of rice leaf roller and the snout moth's larva of rice.
7. purposes according to claim 6, wherein parasitic wasp population by carrying out artificial trichogramma releases foundation to the ovum of pink rice borer, striped rice borer on vetiver, thus realize the biological control of the snout moth's larva of rice such as pink rice borer, striped rice borer continuation.
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| CN104663327A (en) * | 2015-03-16 | 2015-06-03 | 吉林农业大学 | Method for releasing trichogrammas bred in big and small eggs in hybrid manner to prevent and control insect pests |
| CN105265244A (en) * | 2015-08-06 | 2016-01-27 | 北京市农林科学院 | Method for propagating and protecting natural enemy insects by planting corns between vegetables in greenhouse |
| CN105393986A (en) * | 2015-10-18 | 2016-03-16 | 浙江省农业科学院 | Method for releasing parasitic wasp of Chilo suppressalis larva |
| CN105613146A (en) * | 2016-01-08 | 2016-06-01 | 浙江大学 | Plant support system for cabbage pest natural enemies |
| CN105960979A (en) * | 2016-05-05 | 2016-09-28 | 浙江省农业科学院 | Method for improving sesamia inferen control effect by coordinative application of trap crop and sex attractant |
| CN106818652A (en) * | 2017-04-12 | 2017-06-13 | 浙江省农业科学院 | A kind of trichogramma plant supports system and construction method |
| CN106959352A (en) * | 2017-03-28 | 2017-07-18 | 浙江省农业科学院 | A kind of method acted on using the luxuriant behavior evaluation medicament of volume rice leaf roller |
| CN107926862A (en) * | 2017-11-15 | 2018-04-20 | 宁波市农业科学研究院 | A kind of trichogramma method for releasing with Hosta ventricosa away from flower for carrier and nectar source |
| CN111183843A (en) * | 2020-01-16 | 2020-05-22 | 广东省生物资源应用研究所 | Cervus lucidus carrier plant system and construction method and application thereof |
| CN114287301A (en) * | 2021-12-21 | 2022-04-08 | 海南归耘田农业科技有限公司 | Green high-yield breeding method for rice, shrimp and crab |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104663327A (en) * | 2015-03-16 | 2015-06-03 | 吉林农业大学 | Method for releasing trichogrammas bred in big and small eggs in hybrid manner to prevent and control insect pests |
| CN105265244B (en) * | 2015-08-06 | 2018-03-13 | 北京市农林科学院 | A kind of method of maize planting propagation Protect natural enemies insect in greenhouse vegetable |
| CN105265244A (en) * | 2015-08-06 | 2016-01-27 | 北京市农林科学院 | Method for propagating and protecting natural enemy insects by planting corns between vegetables in greenhouse |
| CN105393986A (en) * | 2015-10-18 | 2016-03-16 | 浙江省农业科学院 | Method for releasing parasitic wasp of Chilo suppressalis larva |
| CN105613146B (en) * | 2016-01-08 | 2019-02-22 | 浙江大学 | The plant of cabbage pests natural enemy supports system |
| CN105613146A (en) * | 2016-01-08 | 2016-06-01 | 浙江大学 | Plant support system for cabbage pest natural enemies |
| CN105960979A (en) * | 2016-05-05 | 2016-09-28 | 浙江省农业科学院 | Method for improving sesamia inferen control effect by coordinative application of trap crop and sex attractant |
| CN106959352A (en) * | 2017-03-28 | 2017-07-18 | 浙江省农业科学院 | A kind of method acted on using the luxuriant behavior evaluation medicament of volume rice leaf roller |
| CN106959352B (en) * | 2017-03-28 | 2019-09-27 | 浙江省农业科学院 | A method of rice leaf roller is acted on using luxuriant behavior evaluation medicament is rolled up |
| CN106818652A (en) * | 2017-04-12 | 2017-06-13 | 浙江省农业科学院 | A kind of trichogramma plant supports system and construction method |
| CN107926862A (en) * | 2017-11-15 | 2018-04-20 | 宁波市农业科学研究院 | A kind of trichogramma method for releasing with Hosta ventricosa away from flower for carrier and nectar source |
| CN111183843A (en) * | 2020-01-16 | 2020-05-22 | 广东省生物资源应用研究所 | Cervus lucidus carrier plant system and construction method and application thereof |
| CN114287301A (en) * | 2021-12-21 | 2022-04-08 | 海南归耘田农业科技有限公司 | Green high-yield breeding method for rice, shrimp and crab |
| CN114287301B (en) * | 2021-12-21 | 2023-10-13 | 海南归耘田农业科技有限公司 | Green high-yield planting and breeding method for rice, shrimp and crab |
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