The content of the invention
It is an object of the invention to provide a kind of method that utilization paddy raises gelechiid.
Utilization paddy of the invention is raised the method for gelechiid and is comprised the following steps:
(1) paddy is carried out disinfection;
(2) to the paddy inoculation gelechiid ova after sterilization;
(3) in 25~28 DEG C of temperature, gelechiid ova is raised under conditions of humidity 70~80%, obtains gelechiid adult.
The method that the utilization paddy of specific embodiment of the invention raises gelechiid, in step (1), paddy is put
Enter in water and soak, remove impurity, under 0.02MPa~0.04MPa pressure, using steam to paddy sterilization 30min.
The method that the utilization paddy of specific embodiment of the invention raises gelechiid, in step (2), per 2kg rice
Paddy, is inoculated with gelechiid ova 3ml.
The method that the utilization paddy of specific embodiment of the invention raises gelechiid, in step (3), raises gelechiid
After ovum 25 days, paddy is transferred to imago breeding frame and is raised to moth and is sprouted wings, and collect gelechiid ova.
The utilization paddy of specific embodiment of the invention raises the method for gelechiid, repeat step (1)-step (3) 5
It is secondary.
The utilization paddy of specific embodiment of the invention is raised the method for gelechiid and is comprised the following steps:
(1) by paddy be put into water soak 20min after, remove impurity, after leak, load disinfecting container, 0.02MPa~
Under 0.04MPa pressure, using steam to paddy sterilization 30min.In the raising of gelechiid, easily by other insects, such as tyrophagus putrescentiae, spider
Spider is infected, and so as to pollute whole workshop, affects gelechiid to raise, it is therefore desirable to periodically to disappear to raising apparatus and workshop
Poison, or gelechiid population is introduced again.
(2) after cooling at room temperature, paddy is transferred in larva raising disk, often disk 2kg, is inoculated with the gelechiid that will hatch
Ovum 3ml.At room temperature, gelechiid egg development is very fast, then becomes within 3-5 days red or larvae hatch, reduce Trichogramma effect or
Cannot be parasitic, it is therefore desirable to collect gelechiid ova on time, and it is fresh-keeping under conditions of being stored in 3-5 DEG C.
(3) in 25~28 DEG C of temperature, after raising 25 days under conditions of humidity 70~80%, paddy is transferred to respectively adult
Raise frame and raise to moth and sprout wings, gelechiid ova is obtained by adult disposable box and spawning box.
Similar to barley due to there is clever shell outside paddy but thicker than barley, it affects the moth food rate of gelechiid larva, so as to
The utilization rate of paddy is reduced, increases feeding cost.For this purpose, the method for the raising gelechiid of specific embodiment of the invention is first
First be soaked in water paddy, then using the damp and hot sterilization of high temperature, both can sterilize, and can make clever shell soft again, is conducive to larva moth food, from
And the quantity that gelechiid breeds is effectively increased, reduce feeding cost.
The method of the raising gelechiid of specific embodiment of the invention, test is repeated 5 times, and main detection record is sprouted wings
Gelechiid adult quantity, body size, life-span, egg laying amount, the size of ovum, development duration.From the beginning of sprouting wings from gelechiid, collect daily
Gelechiid adult and gelechiid ova, wherein gelechiid ova obtain after net ovum, with graduated cylinder its yield being measured by knot screen, remember respectively
Record adult quantity and egg laying amount.
The method of the raising gelechiid of the present invention is raised gelechiid and obtains a large amount of host eggs using paddy, especially for barley money
The regional popularization and application trichogramma that source lacks provides chance.The present invention gives full play to the advantage of biological control, is reduced or avoided
Using agricultural chemicals, increase the bio-diversity of field species, with minimum ecological cost, cover crop healthy growth, increase food
Security, promotes the sustainability of environment, reaches preferable overall economic efficiency.
Embodiment 1
It is to raise the gelechiid ova that gelechiid obtains using barley for trying gelechiid ova.Paddy for trying feed is cave Jing 14,
It is purchased from market.Larva raising disk, long * width * height=0.47*0.32*0.035m;Illumination box, model GXZ-403, and elder brother
Worm anatomical lens SZ3100, is purchased from market.Imago breeding frame, long * width * height=0.90*0.70*0.03m, imago breeding bag, long *
Wide * height=1.50*0.80*0.10m, adult disposable box and spawning box, long * width * height=0.45*0.30*0.05m is self-control.
1st, method for breeding
Paddy is put into water is respectively soaked after 20min, remove impurity, after leak, load disinfecting container, in 0.02MPa
Under~0.04MPa pressure, using steam to paddy sterilization 30min.After cooling at room temperature, paddy is transferred to larva raising disk
In, often disk 2kg, is inoculated with the gelechiid ova 3ml that will hatch.In 25~28 DEG C of temperature, under conditions of humidity 70~80% 25 are raised
After it, paddy is transferred to respectively imago breeding frame and is raised to moth and sprouted wings, wheat is obtained by adult disposable box and spawning box
Moth ovum, test is repeated 5 times.Main detection record sprout wings gelechiid adult quantity, body size, the life-span, egg laying amount, ovum it is big
Little, development duration.From the beginning of sprouting wings from gelechiid, a gelechiid adult and gelechiid ova are collected daily, wherein gelechiid ova is filled by removal of impurities
Put and obtain after net ovum, with graduated cylinder its yield being measured, borer population amount and egg laying amount are recorded as respectively.
2nd, gelechiid egg hatching rate
Randomly select 0.5ml paddy breed come gelechiid ova stick on two-sided tape, in being placed in larva raising disk, in temperature
25~28 DEG C, develop after 5d under the feeding environment of humidity 70~80%, adhesive tape is placed under insect anatomy mirror, in the visual field (eyepiece
Under × object lens=10 × 5), the hatching ovum grain number and brown of the white chorion of record and it is shrivelled do not hatch ovum grain number, calculate it and incubate
Rate.With barley as control, it is repeated 3 times.
3rd, larva moth food rate and gelechiid adult eclosion rate
The paddy of inoculation gelechiid ova randomly selects 30 paddy when 20d is raised in larva raising room, whether observes its surface
There is channel, cut paddy open and checked whether gelechiid larva, if any channel or larva, be then shown as moth food grain, be otherwise shown as not eating into food
Grain.When raising 25d, 30 paddy are randomly selected, observe whether its surface has emergence hole, cut paddy open and checked whether puparium,
If any puparium or for empty grain, then it is shown as gelechiid and sprouts wings.Record larva moth eats paddy grain number and does not eat into food grain number, adult eclosion grain
Number and grain number of not sprouting wings, calculate larva moth food rate and adult eclosion rate.It is repeated 3 times.
4th, gelechiid adult polypide and gelechiid Egg size are measured
Adult polypide measures:It is random to extract 30 gelechiid adults respectively, under being placed in insect anatomy mirror, surveyed using slide measure
The body length and width of spreading the wings of amount gelechiid adult.Egg size is measured:30 gelechiid ovas are randomly selected, under being placed in insect anatomy mirror, profit
With the length and width of vernier caliper measurement ovum.And record the size of gelechiid adult polypide and ovum.
5th, gelechiid development duration and Life of Adult
Development duration is to start time for sprouting wings to first gelechiid, to be repeated 5 times from inoculation gelechiid ova.Life of Adult is then
From sprouting wings to the dead time, concrete grammar is to cover gauze on gelechiid larva raising disk, just emergence moth single head will have been loaded
Test tube, a diameter of 20mm of test tube, length is 100mm, and is sealed with black cloth, does not provide food.Observe its life-span, if gelechiid without
Substantially during activity, polypide is contacted with insect anatomy pin, if moving as survival, otherwise for death.Record development duration number of days and adult
Life-span number of days.Repeat 30 times.
6th, paddy utilization rate
Ovum is collected from first time and start timing, if can not receive within continuous 5 days moth and ovum, stop collecting.Measurement feed
Utilization rate, randomly selects 500 paddy, is immersed in the water holding 30min, records the paddy number at connate water bottom, calculates its utilization rate.
It is repeated 5 times.
7th, gelechiid ova raises the development index measure of trichogramma
The two-sided tape for being stained with gelechiid ova is placed in Boiling tube, a width of 15mm of two-sided tape, a length of 180mm, about
15000 ovum, a diameter of 30mm of Boiling tube, long 200mm, by 1:10 honeybee ovum ratio, proceed to new emergence into honeybee about 1500,
Wherein queen bee about 1000, with black cloth test tube mouth is sealed, and the hydromel with 50% is as food source.It it is 25 ± 1 DEG C in temperature, humidity is
70%~80%, the photoperiod is 14L:Parasitism 24h in the illumination box of 10D, observed and recorded Parasitism of Trichogramma, eclosion rate,
The quality index of queen bee ratio and honeybee abnormal rate.
Parasitic rate:After parasitic egg development 7 days, take out band ovum two-sided tape and be placed in the anatomical lens visual field (eyepiece × object lens=10
× 5) under, inspection record black (egg parasitoid), white and shrinkage (non-egg parasitoid) ovum quantity, calculate its parasitic rate.Repeat 3
It is secondary.
Eclosion rate:After cute conjunctivitis bee eclosion, take out two-sided tape and be placed under the anatomical lens visual field, eyepiece × object lens=10 × 5, note
Record black ovum grain number, and check whether there is emergence hole thereon, if the ovum without obvious emergence hole, is chosen with pin
Open, check wherein whether have the residue of parasitic wasp or do not exist emergence into honeybee, be shown as if having sprout wings, if liquid from
Gush out in ovum, be then shown as not sprouting wings.Calculate its eclosion rate.It is repeated 3 times.
Queen bee ratio:30 are randomly selected into honeybee, under being placed in the anatomical lens visual field, eyepiece × object lens=10 × 5, inspection record is female
Honeybee and the quantity of drone, the feeler minor details of queen bee in bar-shaped, the feeler minor details of strong wind in it is bar-shaped and growth hair, calculate queen bee
Than.It is repeated 3 times.
Honeybee abnormal rate:Take out at random 30 just sprouted wings into honeybee, under being placed in the anatomical lens visual field (eyepiece × object lens=10 × 5),
Check whether its wing is complete, records the quantity of vestigial wing honeybee, calculates honeybee abnormal rate.It is repeated 3 times.
As a result
Gelechiid development duration result is shown, is raised in the development duration of gelechiid as feed using paddy, up to 45 days, most
It is short for 40 days, it is averagely most short to go through the phase for 42.4 days.The longest-lived of adult is 8 days, and most short is 3 days, its average life span difference
For 5.5 days.
Survival rate result of the test shows that the highest incubation rate of the gelechiid ova bred using paddy is 98.8%, minimum
96.0%, average out to 97.3%.Gelechiid larva is 96.7%, minimum 83.3% to the highest moth food rate of paddy, average out to
89.6%.Gelechiid adult highest eclosion rate is 96.7%, minimum 80.0%, average out to 88.9%.
Produce moth amount and egg laying amount and quality results show, when raising gelechiid with paddy, per kilogram paddy produces moth amount and is up to
2065, minimum 1856, average out to 1976.14.3ml, minimum 12.8ml are up to per kg paddy egg laying amounts, averagely
For 13.4ml.With the gelechiid that paddy is raised, adult size is body length up to 6.5mm, most short for 4.3mm, and average body is long
5.5mm;Spread the wings most a width of 12.3mm, it is most narrow for 9.1mm, wide average out to 10.1mm of spreading the wings.The most long 0.6mm of its gelechiid ova is most short
For 0.5mm, a length of 0.6mm of average ovum;The most a width of 0.3mm of ovum width, ovum width is most narrow for 0.2mm, a width of 0.2mm of average ovum.
Paddy utilization rate result of the test shows, when raising gelechiid with paddy, the optimum rate of utilization of paddy is 80.8%, minimum
For 77.6%, average out to 79.5%.
Gelechiid percentage of egg parasitism and trichogramma result of growing shows, the gelechiid ova breeding oophagous trichogrammae raised using paddy,
The highest parasitic rate of gelechiid ova is 92.4%, minimum 84.7%, average out to 88.8%;Highest eclosion rate is 97.0%, minimum
For 95.3%, average out to 96.0%;Queen bee ratio is up to 63.3%, minimum 53.3%, average out to 57.8%;Honeybee abnormal rate is most
A height of 13.3%, minimum 3.3%, average out to 7.8%.
Economic and Efficiency Analysis shows that Dehong prefecture release Trichogramma Ostriniae prevents and treats the field test of Ostrinia furnacalis in Yunnan
As a result show, using trichogramma prevention and control corn borer, about 150000 trichogrammas of each trichogramma releases of per hectare, about 15ml gelechiids
Ovum, needs paddy 1.2kg, by every 2.2 yuan of the kg paddy rice of local market valency, then needs 2.6 yuan of feed cost.Production 15ml gelechiid ovas,
Raising gelechiid efficiency using barley according to Dehong locality then needs 1.1kg, by local 3.2 yuan of barley market price per kilogram, then needs to raise
3.5 yuan of cost of material.Per hectare often discharges a trichogramma, if breeding gelechiid using paddy, saves 0.9 yuan of feed cost.It is sub-
Continent corn borer generation overlap is seriously regional, needs trichogramma releases to can be only achieved control effect for 3~5 times, and per hectare can save feed
2.6~4.4 yuan of cost.
Shown using the result of the test of barley, wheat, four kinds of feed breeding gelechiids of paddy rice and corn, larva moth food rate difference
For 88.6%, 74.6%, 89.6% and 41.8%, eclosion rate is respectively 91.85%, 67.4%, 88.89% and 46.2%, often
Kg diet energy output adult is respectively 2005,820,1976 and 315, spawning be respectively 15.5ml, 5.7ml,
13.4ml and 4.2ml.
Using paddy raise gelechiid can reduces cost, can solve without barley cultivation country and area breed cute conjunctivitis in a large number
Honeybee carries out the restriction of biological control of insect pests application, makes full use of local abundant paddy resource, is trichogramma vector gelechiid
Raising provide more choices chance, will greatly promote these regional trichogrammas in the preventing and treating of agricultural lepidoptera pest
Using.