CN109757265A - The pest control method in natural enemy insect mixing field - Google Patents
The pest control method in natural enemy insect mixing field Download PDFInfo
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- CN109757265A CN109757265A CN201910185493.3A CN201910185493A CN109757265A CN 109757265 A CN109757265 A CN 109757265A CN 201910185493 A CN201910185493 A CN 201910185493A CN 109757265 A CN109757265 A CN 109757265A
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Abstract
The invention belongs to pest control technical fields, disclose a kind of pest control method in natural enemy insect mixing field, comprising steps of the breeding time of A, clear crop, to crop field aphid, a situation arises carries out investigating clear aphid phase and insect pest index occurs；B, the phase is occurred according to aphid, determines the release time of natural enemy insect；C, according to insect pest index, the ratio of release natural enemy insect is determined；D, natural enemy insect is discharged according to the ratio of natural enemy insect.The present invention can more effectively prevent and treat aphid pest and disease damage by natural enemy insect mixing field integrated application；The pollination for improving cross-pollinatd plant by the introducing of wasp fly simultaneously, improves percentage of fertile fruit.
Description
Technical field
The invention belongs to pest control technical fields, and in particular to a kind of prevention and control of plant diseases, pest control in natural enemy insect mixing field
Method.
Background technique
The prevention and control of plant diseases, pest control (pest control) is to mitigate or prevent pathogenic microorganism and pest damage crop or people
Poultry, and certain means are artificially taken, it can be generally divided into the chemical prevention and utilization carried out using agrochemical chemical substance
The physical energies such as light or ray or the physical control for building barrier.
The prevention and control of plant diseases, pest control is divided into four major class: the cereal crops prevention and control of plant diseases, pest control, vegetable pests control, industrial crops pest and disease damage
Prevention and treatment, pest and disease control of fruit trees.
Cereal crops can be segmented again are as follows: wheat, corn, rice, sorghum paddy, sweet potato, semen viciae fabae, pea, mung bean, sweet tea are beautiful
Rice, tomato etc..
Vegetable crop can be segmented again are as follows: Chinese cabbage, wild cabbage, green pepper, eggplant, tomato, cucumber, pumpkin flower, cabbage, spinach,
Lettuce, crowndaisy chrysanthemum, celery duck celery, onion, leek, radish, carrot, taro, potato, fructus arctii stone, Diao Bai soil, Radix Angelicae Sinensis etc..
Industrial crops can be segmented again are as follows: peanut, soybean, rape, sesame sunflower, cotton, garlic, shallot dish, beans cotton
Flower, cotton field, cotton field, weeds, beans, Cruciferae etc..
Fruit tree diseases and pests can segment again are as follows: watermelon, muskmelon, strawberry, apple, pears Pi, hawthorn, persimmon, Chinese chestnut, walnut,
Ginkgo, banana, pomegranate, Kiwi berry, fructus lycii, west kind, lotus, panax ginseng fruit, orange, citrus, shaddock, lemon, lichee, longan, mango, plum,
Peach, apricot, cherry, jujube, red bayberry, pineapple, coconut, carambola etc..
The method of the prevention and control of plant diseases, pest control of different plants is different, and adaptation to local conditions, selects practicable pest and disease damage anti-
Control method.
Caused harm the most extensively with aphid again in pest and disease damage.
Aphid, also known as aphid, aphid, are a kind of plant-feed insects, including Aphidoidea (also known as aphid Superfamily, scientific name:
Aphidoidea all members under).About 4400 kinds of a total of 10 sections of the aphid having now been found that, wherein majority belongs to aphid
Section.Aphid is also one of most destructive pest on the earth.Wherein about 250 kinds are that agriculture and forestry and horticulture are endangered
Serious pest.Aphid it is not of uniform size, height millimeter is differed from one to ten.
The natural enemy of aphid has ladybug, wasp fly, parasitic wasp, food aphid cecidomyiia (aphid midge larvae), thomisid, Chrysopa
And insect pathogenic fungus (entomopathogenic fungi contains green muscardine fungus).
Aphid being widely distributed worldwide, but focus primarily upon Temperate Region in China.In addition, the diversity of species
It is more much lower than in temperate zone in the torrid zone.Aphid can carry out remotely migrating, be expanded mainly by way of ballooning
It dissipates；For example, lettuce aphid is considered being exactly to travel to Tasmania from New Zealand in this way.And some mankind's activities
The migration of aphid can also be helped, such as to the process that the plant of attachment aphid is transported.
The frequent species of aphid have: apple aphid, brevicoryne brassicae, stone Yuan Shi adelgid, maize root aphid, cotten aphid etc..Cotten aphid: green to black
Color.Larva is generated throughout the year in warm area, in nice and cool area oviposition.Cause harm more than 10 crop such as muskmelon, cotton, cucumber.
Coccinella septempunctata (Coccinella septempunctata Linnaeus) belongs to coleoptera (Coleoptera), wooden dipper
Worm section (Coccinellidae), Coccinellinae (Coccinellinae), ladybug race (Coccinellini), ladybug category
(Coccinella), distributed more widely general, feeler is very short, and less obviously, for its foot under greatly wing, its mouthpart is file
Suction mouthpart, the ability with laboratory rodent chow, obvious characteristic is that its wing has the dot point of seven black therefore it is referred to as seven
Star ladybug, larva and adult can prey on the pests such as wheat aphid, cotten aphid, Chinese scholartree aphid, black peach aphid, scale insect, tick, can mitigate tree significantly
Wood, melon and fruit and various crops are known as " pesticide living " by the damage of pest, widely distributed throughout our country.In China
Northern south, is commonly called as " potato ladybird ".Predaceous Coccinellids in Ladybeetles have a degree of specificity, such as seven-star wooden dipper
Worm mainly preys on aphid and tetranychid.
Wasp fly, Diptera (Diptera) Hover fly (Syrphidae) insect.It is small-sized to large size at polypide.Body it is wide or
Very thin, the single dead color of body colour or the speckle often with the bright colors such as yellow, orange, greyish white, certain types then have the metals such as blue, green, copper
Color, appearance is like bee.Head is big.Male eye symphysis, female are had hallucinations life, also have both sexes from life.Syrkhus corollae (Eupeodes
Corollae it is white that) ovum, which generally produces in aphid group, and elongated, chorion has netted decoration.Predacious syrphids are common days
Insect is opposed, it is famous with larva predation aphid.
However do not occur the technology by natural enemy insect to the field prevention and control of plant diseases, pest control also in the prior art.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide a kind of natural enemy insect mixing fields
Pest control method.
The technical scheme adopted by the invention is as follows:
A kind of pest control method in natural enemy insect mixing field, comprising steps of
A, the breeding time of clear crop, to crop field aphid, a situation arises investigate clear aphid phase and insect pest occurs
Index；
B, the phase is occurred according to aphid, determines the release time of natural enemy insect；
C, according to insect pest index, the ratio of release natural enemy insect is determined；
D, natural enemy insect is discharged according to the ratio of natural enemy insect.
Further, the pest control method in the natural enemy insect mixing field, further includes step E: release natural enemy
Periodic investigation crop pest index after insect supplements release natural enemy insect according to the insect pest index of crop.
Further, the crop is raspberry；A situation arises using five-spot investigation aphid by the step A, the worm
Evil index judged with strain aphid amount, calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
Further, the specific investigation method of the step A are as follows: every 7d, using five-spot investigation aphid, a situation arises,
25 plants of every place's random searching is investigated at 4,3 blades of every plant of investigation, and a situation arises for record aphid, calculates strain aphid amount.
Further, the natural enemy insect is coccinella septempunctata ovum grain；The release time of the natural enemy insect of the step B is aphid
Worm early period of origination；The specific steps of the step D are as follows: when strain aphid amount < 10 head/plant, according to the benefit evil of 1:100 than release seven-star
Ladybird egg grain；The time of the supplement release natural enemy insect of the step E is 7-10 days discharged after coccinella septempunctata ovum grain, and ratio is
According to the benefit evil of 1:100 than release coccinella septempunctata ovum grain.
Further, the natural enemy insect is coccinella septempunctata ovum grain and Syrkhus corollae pupa；The natural enemy insect of the step B
Release time be aphid early period of origination；The specific steps of the step D are as follows: when strain aphid amount < 10 head/plant, according to 1:100's
Benefit evil is than release coccinella septempunctata ovum grain；The time of the supplement release natural enemy insect coccinella septempunctata ovum grain of the step E is release seven
7-10 days after star Ladybird egg grain, ratio was the benefit evil according to 1:100 than release coccinella septempunctata ovum grain；In crop squaring period, release
Syrkhus corollae pupa is put, the release time interval of Syrkhus corollae pupa is to discharge every two weeks once, and continuous release is twice；Release ratio
Example is release Syrkhus corollae pupa 600 per acre.
Further, the crop is muskmelon: the natural enemy insect includes coccinella septempunctata ovum grain；The step A's is specific
Investigation method are as follows: every canopy hangs yellow plate 5 and opens after muskmelon transplanting, carries out aphid monitoring, and yellow plate is removed after 7-10 days and records Huang
Aphed population on plate is aphid early period of origination when aphid total amount > 10/, and it is primary to be spaced investigation in 7 days；The insect pest
Index judged with strain aphid amount, calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
Further, it is discharged when the release time of the step B is strain aphid amount > 15；The step C is according to seven-star wooden dipper
Worm's ovum grain: Aphed population=1:50 carries out release coccinella septempunctata ovum grain.
Further, the step E's is periodically 7 days, supplements the coccinella septempunctata ovum grain ratio of release according to coccinella septempunctata
Ovum grain: Aphed population=1:50 is carried out；After if the step E further comprises the steps of: release twice in succession, at strain aphid amount > 15,
It sprays 800-1200 times of liquid of a clothianidin and carries out aphid control, interval carried out coccinella septempunctata according to Aphed population after 7-10 days again
The supplement release of ovum grain, ratio is according to coccinella septempunctata ovum grain number amount: Aphed population=1:50 is carried out.
Further, the natural enemy insect further includes Syrkhus corollae pupa；The step E further comprises the steps of: existing in muskmelon
It discharges Syrkhus corollae pupa flower bud early period, launches Syrkhus corollae pupa 200 every time, it is primary every release in 2 weeks, twice in succession.
The invention has the benefit that the present invention by the field application method of clear natural enemy insect including release time,
Injected volume realizes effectively preventing aphid pest and disease damage；Simultaneously by the introducing of wasp fly, wasp fly is after field feeding nectar
It mates, and ovum grain is produced on band aphid plant, form larva after egg hatching and start feeding aphid until pupating；If being compromised
Plant is flowering plant, and pupa forms adult after sprouting wings, then starts to pollinate, so that the present invention is playing anti-eliminate aphis using wasp fly
While pest and disease damage, the pollination of cross-pollinatd plant is improved, percentage of fertile fruit is improved.
Specific embodiment
Further explaination is done to the present invention combined with specific embodiments below.
A kind of pest control method in natural enemy insect mixing field, comprising steps of
A, the breeding time of clear crop, to crop field aphid, a situation arises investigate clear aphid phase and insect pest occurs
Index；
B, the phase is occurred according to aphid, determines the release time of natural enemy insect；
C, according to insect pest index, the ratio of release natural enemy insect is determined；
D, natural enemy insect is discharged according to the ratio of natural enemy insect.
Further, the pest control method in the natural enemy insect mixing field, further includes step E: release natural enemy
Periodic investigation crop pest index after insect supplements release natural enemy insect according to the insect pest index of crop.
The purpose of the present invention is 1. two kinds of natural enemy insect mixing field integrated applications can be prevented and treated more effectively；2. cross-pollination
The pollination of plant improves its percentage of fertile fruit.
The entire breeding time that the steps include: (a) clear plant carries out analysis integrated and field trial according to calendar year experience,
It specifies aphid and phase, occurrence in peak period and insect pest index occurs.(b) release time for actually specifying natural enemy insect is combined.
(c) two weeks after plantlet of transplant, carry out field aphid monitor, when aphid reaches it is a certain amount of when, according to 1:200 benefit do harm to ratio
Coccinella septempunctata ovum grain is launched, was launched at interval of one week once, up to no aphid phase；(d) plant buddings the last week, carries out advantage and eats aphid
Fly is launched, and launches its pupa grain than carrying out field according to the benefit evil of 1:150, launches interval every time one week, continuous 2 times.
It after wasp fly is launched, mates after field feeding nectar, and ovum grain is produced on band aphid plant, after egg hatching
It forms larva and starts feeding aphid until pupating；If being compromised plant is flowering plant, pupa forms adult after sprouting wings, then starts to pass
Powder.Its pollination is only second to honeybee, is important one of the natural enemy insect of insect pollinator and aphid, to pass through food aphid
While prevention and treatment aphid pest and disease damage is played in the introducing of fly, the pollination of cross-pollinatd plant is improved, percentage of fertile fruit is improved.
Further, the crop is raspberry；A situation arises using five-spot investigation aphid by the step A, the worm
Evil index judged with strain aphid amount, calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
Further, the specific investigation method of the step A are as follows: every 7d, using five-spot investigation aphid, a situation arises,
25 plants of every place's random searching is investigated at 4,3 blades of every plant of investigation, and a situation arises for record aphid, calculates strain aphid amount.
Further, the natural enemy insect is coccinella septempunctata ovum grain；The release time of the natural enemy insect of the step B is aphid
Worm early period of origination；The specific steps of the step D are as follows: when strain aphid amount < 10 head/plant, according to the benefit evil of 1:100 than release seven-star
Ladybird egg grain；The time of the supplement release natural enemy insect of the step E is 7-10 days discharged after coccinella septempunctata ovum grain, and ratio is
According to the benefit evil of 1:100 than release coccinella septempunctata ovum grain.
Further, the natural enemy insect is coccinella septempunctata ovum grain and Syrkhus corollae pupa；The natural enemy insect of the step B
Release time be aphid early period of origination；The specific steps of the step D are as follows: when strain aphid amount < 10 head/plant, according to 1:100's
Benefit evil is than release coccinella septempunctata ovum grain；The time of the supplement release natural enemy insect coccinella septempunctata ovum grain of the step E is release seven
7-10 days after star Ladybird egg grain, ratio was the benefit evil according to 1:100 than release coccinella septempunctata ovum grain；In crop squaring period, release
Syrkhus corollae pupa is put, the release time interval of Syrkhus corollae pupa is to discharge every two weeks once, and continuous release is twice；Release ratio
Example is release Syrkhus corollae pupa 600 per acre.
Further, the crop is muskmelon: the natural enemy insect includes coccinella septempunctata ovum grain；The step A's is specific
Investigation method are as follows: every canopy hangs yellow plate 5 and opens after muskmelon transplanting, carries out aphid monitoring, and yellow plate is removed after 7-10 days and records Huang
Aphed population on plate is aphid early period of origination when aphid total amount > 10/, and it is primary to be spaced investigation in 7 days；The insect pest
Index judged with strain aphid amount, calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
Further, it is discharged when the release time of the step B is strain aphid amount > 15；The step C is according to seven-star wooden dipper
Worm's ovum grain: Aphed population=1:50 carries out release coccinella septempunctata ovum grain.
Further, the step E's is periodically 7 days, supplements the coccinella septempunctata ovum grain ratio of release according to coccinella septempunctata
Ovum grain: Aphed population=1:50 is carried out；After if the step E further comprises the steps of: release twice in succession, at strain aphid amount > 15,
It sprays 800-1200 times of liquid of a clothianidin and carries out aphid control, interval carried out coccinella septempunctata according to Aphed population after 7-10 days again
The supplement release of ovum grain, ratio is according to coccinella septempunctata ovum grain number amount: Aphed population=1:50 is carried out.
Further, the natural enemy insect further includes Syrkhus corollae pupa；The step E further comprises the steps of: existing in muskmelon
It discharges Syrkhus corollae pupa flower bud early period, launches Syrkhus corollae pupa 200 every time, it is primary every release in 2 weeks, twice in succession.
Embodiment 1
The present embodiment has carried out experiment in 1 year by a definite date in 2018 in Sichuan Province jingyang of deyang.
Step 1: clear investigation method: every 7d, using five-spot investigation aphid, a situation arises, every canopy random searching 25
Strain, is investigated 4 greenhouses (100 plants), three blades of every plant of investigation, and a situation arises for record aphid, and calculates every hundred plants of aphid amounts, and hundred plants
Aphid amount=investigation Aphed population/investigation strain number * 100, while other insects inside and outside random acquisition canopy, and saved with 75% alcohol,
Take back indoor identification.
Step 2: carrying out experimental setup: 1. conventional control, 2. coccinella septempunctata it is anti-eliminate aphis, 3. coccinella septempunctata ovum grain and food
The mixing of aphid fly pupa is anti-to eliminate aphis, 4. compares.
1. conventional control: being prevented and treated using high-efficiency low-toxicity chemical pesticide, aphid early period of origination, strain aphid amount < 10 head/plant
When, it selects and sprays 1000-1200 times of liquid of 50% pymetrozine and sprayed, it is primary at interval of investigation in 7 days.
Eliminate aphis 2. coccinella septempunctata is anti-, aphid early period of origination, when strain aphid amount < 10 head/plant, according to 1:100 benefit evil when
When discharge coccinella septempunctata ovum grain, after release 7-10 days in time investigation supplement discharge.
3. coccinella septempunctata ovum grain mixes anti-eliminate aphis with wasp fly pupa: when aphid initial phase, i.e. strain aphid amount < 10 head/plant, pressing
According to 1:100 benefit evil when discharge coccinella septempunctata ovum grain, after release 7-10 days in time investigation supplement discharge.Squaring period may be used also
Coccinella septempunctata is cooperated to discharge Syrkhus corollae pupa, next-generation larva can prevent and treat melon aphid after wasp fly adult eclosion, while adult has
There is pollination, discharge Syrkhus corollae pupa 600 per acre, was put every 2 weeks once, twice in succession.
4. control: insecticide and natural enemy insect not being used to be prevented and treated.
Step 3: carrying out control efficiency evaluation
1. being chemical prevention using conventional control, initial performances can reach 85-95%, because chemical agent carries out prevention and treatment aphid
Worm will lead to aphid and develop drug resistance, and the later period is poor using effect of chemical control；
2. eliminating aphis using coccinella septempunctata is anti-, preventive effect can be arrived to 65%-73%, and not can cause environmental pollution；
3. using coccinella septempunctata and Syrkhus corollae mixing application, integrated control effect can reach 70-80%, promote simultaneously
Into the fruit-setting rate of plant.
4. not preventing and treating canopy area, control efficiency is negative value.
Step 4: clear comprehensive application technology standard and release time.
Embodiment 2
Two kinds of natural enemy insect mixing application prevention and treatment Melons, specific as follows:
(1) the present embodiment carries out two kinds of days in the muskmelon to four area Ge Peng of jingyang of deyang (every 200 ㎡ of canopy) in 2018
Enemy's insect mixing is anti-to eliminate aphis；Every canopy hangs yellow plate 5 and opens after muskmelon transplanting, carries out aphid monitoring, and yellow plate is removed after 7-10 days
And the Aphed population on yellow plate is recorded, it is aphid early period of origination when aphid total amount > 10/, it is primary is spaced investigation in 7 days.
(2) conventional control canopy is prevented and treated according to habituation spray, common to use medicament for 1000-1500 times of pymetrozine
Liquid is sprayed.
(3) the anti-canopy that eliminates aphis of coccinella septempunctata, when strain aphid amount > 15, according to coccinella septempunctata ovum grain: Aphed population 1:
50 standard is launched, and is spaced investigation in 7 days once, and carries out the supplement release of coccinella septempunctata ovum grain, after launching twice in succession
If at strain aphid amount > 15, spraying 800-1200 times of liquid of a clothianidin and carrying out aphid control, interval is after 7-10 days according to aphid
Quantity carries out coccinella septempunctata ovum grain and launches, and same method repeats.
(4) coccinella septempunctata ovum grain and Syrkhus corollae pupa mixing prevention and treatment canopy, prior step are buddingged early period with (3) in muskmelon,
Syrkhus corollae pupa is discharged, Syrkhus corollae pupa turns into flight feeding muskmelon nectar after adult and pollinates, big ash food aphid
Fly adult produces ovum around aphid in post-coitum, and the larva after egg hatching is sustainable to be prevented eliminating aphis, and launches big ash every time and eats aphid
It fly pupa 200, was put every 2 weeks once, twice in succession.
(5) blank control canopy is not prevented and treated.
According to above-mentioned control method, two weeks investigation records Revision insect recluced rates and control efficiency after prevention and treatment, by observing and calculating
It can be seen that the Revision insect recluced rate for carrying out initial stage prevention and treatment melon aphid using conventional control is carried out up to 87.4% using single natural enemy insect
Later period prevention and treatment, Revision insect recluced rate is up to 64.8%；The preventive effect of two kinds of natural enemy insect mixing applications reaches 75% or more.
Embodiment 3
A kind of pest control method in natural enemy insect mixing field, comprising steps of
A, the breeding time of clear crop, to crop field aphid, a situation arises investigate clear aphid phase and insect pest occurs
Index；
B, the phase is occurred according to aphid, determines the release time of natural enemy insect；
C, according to insect pest index, the ratio of release natural enemy insect is determined；
D, natural enemy insect is discharged according to the ratio of natural enemy insect.
The pest control method in the natural enemy insect mixing field, further includes step E: after release natural enemy insect periodically
Crop pest index is investigated, release natural enemy insect is supplemented according to the insect pest index of crop.
The crop is raspberry；A situation arises using five-spot investigation aphid by the step A, and the insect pest index is with strain
Aphid amount judged, calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
The specific investigation method of the step A are as follows: a situation arises using five-spot investigation aphid every 7d, and every place adjusts at random
25 plants are looked into, is investigated at 4,3 blades of every plant of investigation, a situation arises for record aphid, calculates strain aphid amount.
The natural enemy insect is coccinella septempunctata ovum grain；The release time of the natural enemy insect of the step B is that aphid occurs just
Phase；The specific steps of the step D are as follows: when strain aphid amount < 10 head/plant, according to the benefit evil of 1:100 than release coccinella septempunctata ovum
Grain；The time of the supplement release natural enemy insect of the step E is 7-10 days discharged after coccinella septempunctata ovum grain, and ratio is according to 1:
100 benefit evil is than release coccinella septempunctata ovum grain.
Embodiment 4
The present embodiment and the difference of embodiment 3 are: the natural enemy insect is coccinella septempunctata ovum grain and Syrkhus corollae pupa；
The release time of the natural enemy insect of the step B is aphid early period of origination；The specific steps of the step D are as follows: when strain aphid amount < 10
Head/plant when, according to 1:100 benefit evil than release coccinella septempunctata ovum grain；The supplement of the step E discharges natural enemy insect coccinella septempunctata
The time of ovum grain is 7-10 days discharged after coccinella septempunctata ovum grain, and ratio is the benefit evil according to 1:100 than release coccinella septempunctata ovum
Grain；In crop squaring period, Syrkhus corollae pupa is discharged, the release time interval of Syrkhus corollae pupa is to discharge every two weeks once,
Continuous release is twice；Releasing ratio is to discharge Syrkhus corollae pupa 600 per acre.
Embodiment 5
A kind of pest control method in natural enemy insect mixing field, comprising steps of
A, the breeding time of clear crop, to crop field aphid, a situation arises investigate clear aphid phase and insect pest occurs
Index；
B, the phase is occurred according to aphid, determines the release time of natural enemy insect；
C, according to insect pest index, the ratio of release natural enemy insect is determined；
D, natural enemy insect is discharged according to the ratio of natural enemy insect.
Further, the pest control method in the natural enemy insect mixing field, further includes step E: release natural enemy
Periodic investigation crop pest index after insect supplements release natural enemy insect according to the insect pest index of crop.
The crop is muskmelon: the natural enemy insect includes coccinella septempunctata ovum grain；The specific investigation method of the step A
Are as follows: every canopy hangs yellow plate 5 and opens after muskmelon transplanting, carries out aphid monitoring, and yellow plate is removed after 7-10 days and records the aphid on yellow plate
Borer population amount is aphid early period of origination when aphid total amount > 10/, and it is primary to be spaced investigation in 7 days；The insect pest index is with strain
Aphid amount judged, calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
The release time of the step B discharges when being strain aphid amount > 15；The step C is according to coccinella septempunctata ovum grain: aphid
Borer population amount=1:50 carries out release coccinella septempunctata ovum grain.
The step E's is periodically 7 days, supplements the coccinella septempunctata ovum grain ratio of release according to coccinella septempunctata ovum grain: aphid
Quantity=1:50 is carried out；If at strain aphid amount > 15, spraying a thiophene after the step E further comprises the steps of: release twice in succession
800-1200 times of liquid of worm amine carries out aphid control, and interval carries out coccinella septempunctata ovum grain supplement again according to Aphed population and releases after 7-10 days
Put, ratio is according to coccinella septempunctata ovum grain number amount: Aphed population=1:50 is carried out.
Further, the natural enemy insect further includes Syrkhus corollae pupa；The step E further comprises the steps of: existing in muskmelon
It discharges Syrkhus corollae pupa flower bud early period, launches Syrkhus corollae pupa 200 every time, it is primary every release in 2 weeks, twice in succession.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific embodiment should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (10)
1. a kind of pest control method in natural enemy insect mixing field, it is characterised in that: comprising steps of
A, the breeding time of clear crop, to crop field aphid, a situation arises investigate that the phase occurs for clear aphid and insect pest refers to
Number；
B, the phase is occurred according to aphid, determines the release time of natural enemy insect；
C, according to insect pest index, the ratio of release natural enemy insect is determined；
D, natural enemy insect is discharged according to the ratio of natural enemy insect.
2. the pest control method in natural enemy insect mixing according to claim 1 field, it is characterised in that: further include step
Rapid E: periodic investigation crop pest index after release natural enemy insect supplements release natural enemy insect according to the insect pest index of crop.
3. the pest control method in natural enemy insect mixing according to claim 2 field, it is characterised in that: the crop
For raspberry；A situation arises using five-spot investigation aphid by the step A, and the insect pest index is judged with strain aphid amount,
Calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
4. the pest control method in natural enemy insect mixing according to claim 3 field, it is characterised in that: the step
The specific investigation method of A are as follows: every 7d, using five-spot investigation aphid, a situation arises, 25 plants of every place's random searching, at investigation 4,
3 blades of every plant of investigation, a situation arises for record aphid, calculates strain aphid amount.
5. the pest control method in natural enemy insect mixing according to any one of claims 1-4 field, feature exist
In: the natural enemy insect is coccinella septempunctata ovum grain；The release time of the natural enemy insect of the step B is aphid early period of origination；Institute
State the specific steps of step D are as follows: when strain aphid amount < 10 head/plant, according to the benefit evil of 1:100 than release coccinella septempunctata ovum grain；It is described
The time of the supplement release natural enemy insect of step E is 7-10 days discharged after coccinella septempunctata ovum grain, and ratio is the benefit according to 1:100
Evil is than release coccinella septempunctata ovum grain.
6. the pest control method in natural enemy insect mixing according to any one of claims 1-4 field, feature exist
In: the natural enemy insect is coccinella septempunctata ovum grain and Syrkhus corollae pupa；The release time of the natural enemy insect of the step B is aphid
Worm early period of origination；The specific steps of the step D are as follows: when strain aphid amount < 10 head/plant, according to the benefit evil of 1:100 than release seven-star
Ladybird egg grain；The time of the supplement release natural enemy insect coccinella septempunctata ovum grain of the step E is after discharging coccinella septempunctata ovum grain
7-10 days, ratio was the benefit evil according to 1:100 than release coccinella septempunctata ovum grain；In crop squaring period, Syrkhus corollae pupa is discharged,
The release time interval of Syrkhus corollae pupa is to discharge every two weeks once, and continuous release is twice；Releasing ratio is that release is big per acre
Grey wasp fly pupa 600.
7. the pest control method in natural enemy insect mixing field described in -2 any one, feature exist according to claim 1
In: the crop is muskmelon: the natural enemy insect includes coccinella septempunctata ovum grain；The specific investigation method of the step A are as follows: in sweet tea
Every canopy hangs yellow plate 5 and opens after melon transplanting, carries out aphid monitoring, and yellow plate is removed after 7-10 days and records the Aphed population on yellow plate,
It is aphid early period of origination when aphid total amount > 10/, it is primary is spaced investigation in 7 days；The insect pest index with strain aphid amount come into
Row judgement, calculation formula are as follows: strain aphid amount=investigation Aphed population/investigation strain number.
8. the pest control method in natural enemy insect mixing according to claim 7 field, it is characterised in that: the step
The release time of B discharges when being strain aphid amount > 15；The step C is according to coccinella septempunctata ovum grain: Aphed population=1:50 is carried out
Discharge coccinella septempunctata ovum grain.
9. the pest control method in natural enemy insect mixing according to claim 8 field, it is characterised in that: the step
E's is periodically 7 days, and supplement the coccinella septempunctata ovum grain ratio of release according to coccinella septempunctata ovum grain: Aphed population=1:50 is carried out；Institute
If stating after step E further comprises the steps of: release twice in succession, at strain aphid amount > 15,800-1200 times of liquid of a clothianidin is sprayed
Aphid control is carried out, interval carries out the supplement release of coccinella septempunctata ovum grain again according to Aphed population after 7-10 days, ratio is according to seven-star
Ladybird egg grain number amount: Aphed population=1:50 is carried out.
10. the pest control method in natural enemy insect mixing according to claim 9 field, it is characterised in that: the day
Opposing insect further includes Syrkhus corollae pupa；The step E, which further comprises the steps of: to budding in muskmelon, discharges Syrkhus corollae pupa early period,
Syrkhus corollae pupa 200 are launched every time, it is primary every release in 2 weeks, twice in succession.
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