CN104871885B - A kind of prevention and controls of rice grub brown paddy plant hopper - Google Patents
A kind of prevention and controls of rice grub brown paddy plant hopper Download PDFInfo
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- CN104871885B CN104871885B CN201510340495.7A CN201510340495A CN104871885B CN 104871885 B CN104871885 B CN 104871885B CN 201510340495 A CN201510340495 A CN 201510340495A CN 104871885 B CN104871885 B CN 104871885B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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Abstract
It is an object of the invention to provide a kind of prevention and controls of above-mentioned rice grub brown paddy plant hopper, the method is accurate to paddy rice dispenser, while effectively having prevented and treated brown paddy plant hopper insect pest.A kind of prevention and controls of rice grub brown paddy plant hopper, including investigation obtains population number x of the two generation brown paddy plant hoppers bosom ovum female adult pest in every hundred clumps of rice strains, works as x>When 0.4, the low instar nymphs stage produced in two generations carries out dispenser preventing and treating.According to prevention and controls of the invention, specify that the low instar nymphs stage that two generations were produced in the case of which kind of is to need to be prevented and treated, effectively to force down worm sources radix, reach the purpose for controlling three generations's population number, the method dispenser simultaneously is rationally and necessary, further ensures the normal growth of paddy rice.
Description
Technical field
The present invention relates to Agricultural pest control field, specifically on a kind of prevention and controls of rice grub brown paddy plant hopper
Background technology
Brown paddy plant hopper is a kind of migratory pest, and it is one of Main Barrier Factors of influence China Rice Production.Brown paddy plant hopper
It is an accumulation that increment occurs in rice field, and In Middle And Lower Reaches of Changjiang River general annual May 21 moves between June 20
It is the first generation to enter, and June 21 was the second generation to being moved between July 20, then a generation local breeding two generation adults with move
The common breeding on paddy rice of two generation adults for entering, forms three generations adult and spawning and hatching imago/nymph, is to break out in main evil generation in three generations.
To the preventing and treating of brown paddy plant hopper typically using " under being controlled in pressure " or the technical measures of " control of pressure two three " in production, i.e., two generations produced it is low
Each dispenser in low instar nymphs peak period that age nymph and three generations are produced once, so as to reach the purpose of effective prevention and control.But brown paddy plant hopper
The amount of moving into differs greatly between year, and early stage in some times amount of moving into is larger, and two generation generating capacities are higher；Early stage in some times amount of moving into
Bigger, three generations is easily broken out；But also there are many times, the amount of moving into is small in early days, two generation generating capacities are few or little.If used
Unified fixed technology mode is prevented and treated, and runs counter to science, not only wastes substantial amounts of manpower and materials, also results in the indiscriminate of agricultural chemicals
With.At present to the brown paddy plant hopper early stage amount of moving into how much, in two generations, just needed to be prevented and treated, and the whole nation does not have unified prophylactico-therapeutic measures.
The content of the invention
It is an object of the invention to provide a kind of prevention and controls of above-mentioned rice grub brown paddy plant hopper, the method is accurate to paddy rice dispenser
Really, while effectively having prevented and treated brown paddy plant hopper insect pest.
A kind of prevention and controls of rice grub brown paddy plant hopper, including investigation obtains two generation brown paddy plant hoppers and cherishes ovum female adult pest at every hundred clumps
Population number x in rice strain, works as x>When 0.4, the low instar nymphs stage produced in two generations carries out dispenser preventing and treating.
According to prevention and controls of the invention, specify that the low instar nymphs stage that two generations were produced in the case of which kind of is to need to carry out
Preventing and treating, effectively to force down worm sources radix, reaches the purpose of control three generations's population number, while the method dispenser is reasonable and must
Will, further ensure the normal growth of paddy rice.
Specific embodiment
A kind of prevention and controls of rice grub brown paddy plant hopper, including investigation obtains two generation brown paddy plant hoppers and cherishes ovum female adult pest at every hundred clumps
Population number x in rice strain, works as x>When 0.4, the low instar nymphs stage produced in two generations carries out dispenser preventing and treating.Above-mentioned x values are
By selecting 50 pieces of rice fields, every piece of rice field random searching 20 clumps, takes the average value of above investigation result and obtains by totally 1000 clumps
, the unit of the x values is head/hundred clump, wherein every clump of rice about 12-13 plants of tiller number of strain.So-called bosom ovum female adult pest refers to ovary
It is developed to the wing female adult pest long of three-level and the above, bosom ovum female adult pest belly is expanded, and individual morphology feature is protruded, it is easy to recognized,
Therefore, cherish the later stage index for control that ovum female adult pest quantity is used as brown paddy plant hopper by counting for two generations, can reduce due to planthopper
Work intensity and reduction human error caused by species, age identification difficulty, have weight to instructing brown paddy plant hopper preventing control method
Big meaning.The prevention and controls, specify that the low instar nymphs stage that two generations were produced in the case of which kind of is to need to be prevented and treated, to have
Effect forces down worm sources radix, reaches the purpose of control three generations's population number, while the method is simple and practical, dispenser is rationally and necessary,
Further ensure the normal growth of paddy rice.
More specifically technical scheme is that described prevention and controls are divided into following several administration ways：
(1) during x≤0.4, the low instar nymphs peak period dispenser produced in three generations is once.That is two generation brown paddy plant hoppers cherish ovum female adult pest
In the case of population number≤0.4 in every hundred clumps of rice strains, show that the amount of moving into of early stage brown paddy plant hopper is few, the low age that two generations were produced
Nymph is few, without preventing and treating, it is only necessary to which the low instar nymphs stage dispenser produced to three generations once can control full season brown paddy plant hopper insect pest.
(2)0.4<During x≤2.1, the low instar nymphs peak period that the low instar nymphs and three generations produced in two generations are produced respectively is applied
Medicine is once.Show that the early stage amount of moving into is medium, then the low instar nymphs stage that two generations were produced is also to need what dispenser was prevented and treated, ability
Ensure that the total worm amount in final field does not constitute harm.
(3)x>When 2.1, the low instar nymphs peak period dispenser produced in two generations once, the low instar nymphs peak that three generations is produced
Phase dispenser is twice.Show that the early stage amount of moving into is big, later stage brown paddy plant hopper may great outburst, then take measures to produce for two generations
The low instar nymphs stage carry out dispenser preventing and treating, the low instar nymphs peak period dispenser that correspondence three generations is produced is twice, you can effectively containment
Full season brown paddy plant hopper insect pest.
By above-mentioned controlling mode, the harm that full season brown paddy plant hopper may bring effectively is controlled, also improved to Fertilizer in Rice
The accuracy and necessity of medicine, reduce spraying times to greatest extent, and the method environmental protection is effectively.
Population number x and three generations brown paddy plant hopper insect population number of the described two generation brown paddy plant hoppers bosom ovum female adult pest in every hundred clumps of rice strains
Amount y meets generalized linear regression Mathematical Modeling：Lny=0.943*x-3.191*c+0.703*x*C+7.200, c=0 or 1, work as c=
Represent that the low instar nymphs stage produced to two generations, without prophylactico-therapeutic measures, represents the low instar nymphs stage produced to two generations during c=1 when 0
Take dispenser prophylactico-therapeutic measures.In two generations, prevented and treated (c=1；Do not prevent and treat c=0) can substantially force down three generations's Population of Rice Brown Planthopper size y.Work as x
When≤0.4, represent that the early stage amount of moving into is on the low side；When 0.4<During x≤2.1, the amount of moving into is medium；Work as x>When 2.1, the early stage amount of moving into is represented
Greatly, three generations's easily great outburst.Cherish population number x of the ovum female adult pest in every hundred clumps of rice strains, and root by counting two generation brown paddy plant hoppers
According to the model, the population number y by the three generations brown paddy plant hopper after corresponding two generations prophylactico-therapeutic measures is can be evaluated whether.Using y values are estimated, can
To decide whether that the low instar nymphs stage produced in two generations, three generations takes corresponding prophylactico-therapeutic measures, it is ensured that necessity of dispenser
The security of property and paddy growth, its relatively conventional prophylactico-therapeutic measures medication has more reasonability.
50 pieces of rice fields of mono-season medium rice Tanaka selection that embodiment 1 was planted in 2009, every piece of rice field random searching 20 clumps,
Population number of the two generation brown paddy plant hoppers bosom ovum female adult pest in rice strain is counted, the average of above-mentioned 1000 clumps of investigation results is taken and is worth to x
=0.2, using generalized linear regression Mathematical Modeling, as c=0, y predicted values are 1620.2/hundred clumps, less than 2000/hundred
Clump (medium and occur below level).Finally the low instar nymphs produced to two generations are taken not prevent and treat, the low instar nymphs that three generations is produced
Preventing and treating technical measures once, field damage losses are controlled within economic threshold.
50 pieces of rice fields of mono-season medium rice Tanaka selection that embodiment 2 was planted in 2014, every piece of rice field random searching 20 clumps,
Population number of the two generation brown paddy plant hoppers bosom ovum female adult pest in rice strain is counted, the average of above-mentioned 1000 clumps of investigation results is taken and is worth to x
=0.4, using generalized linear regression Mathematical Modeling, as c=0, y predicted values are 1955.9/hundred clumps, less than 2000/hundred
Clump (medium and occur below level).Finally the low instar nymphs produced to two generations are taken not prevent and treat, the low instar nymphs that three generations is produced
Preventing and treating technical measures once, field damage losses are controlled within economic threshold.
50 pieces of rice fields of mono-season medium rice Tanaka selection that embodiment 3 was planted in 2008, every piece of rice field random searching 20 clumps,
Population number of the two generation brown paddy plant hoppers bosom ovum female adult pest in rice strain is counted, the average of above-mentioned 1000 clumps of investigation results is taken and is worth to x
=1.4, using generalized linear regression Mathematical Modeling, work as c=0, y predicted values are 5017.7/hundred clumps, more than 2000/hundred clumps.
Final technical measures of each dispenser in low instar nymphs peak period for taking the low instar nymphs that are produced in two generations and three generations to be produced, hundred
Clump worm amount is 554.6/hundred clumps, and brown paddy plant hopper insect pest situation is effectively controlled.
50 pieces of rice fields of mono-season medium rice Tanaka selection that embodiment 4 was planted in 2012, every piece of rice field random searching 20 clumps,
Population number of the two generation brown paddy plant hoppers bosom ovum female adult pest in rice strain is counted, the average of above-mentioned 1000 clumps of investigation results is taken and is worth to x
=2.0, using generalized linear regression Mathematical Modeling, work as c=0, y predicted values are 8838.5/hundred clumps, more than 2000/hundred clumps.
Final technical measures of each dispenser in low instar nymphs peak period for taking the low instar nymphs that are produced in two generations and three generations to be produced, hundred
Clump worm amount 1484.5, brown paddy plant hopper field damage losses are controlled within economic threshold.
50 pieces of rice fields of mono-season medium rice Tanaka selection that embodiment 5 was planted in 2006, every piece of rice field random searching 20 clumps,
Population number of the two generation brown paddy plant hoppers bosom ovum female adult pest in rice strain is counted, the average of above-mentioned 1000 clumps of investigation results is taken and is worth to x
=2.8, using generalized linear regression Mathematical Modeling, work as c=0, y predicted values are 18779.8/hundred clumps, and brown paddy plant hopper will be broken out；When
C=1, y predicted value are still 5531.9/hundred clumps, more than 2000/hundred clumps.Finally take the low instar nymphs produced in two generations
Peak period prevents and treats once, and the low instar nymphs peak period that three generations is produced prevents and treats secondary technical measures, and hundred clumps of worm amount controls are 2000
Within head, full season brown paddy plant hopper occurrence injury is effectively contained.
Shown by above example, the prophylactico-therapeutic measures for accordingly being used is easy and effective, the spraying times of paddy rice are maximum
Degree reduction, it is ensured that the normal growth of paddy rice.
Claims (2)
1. a kind of prevention and controls of rice grub brown paddy plant hopper, it is characterised in that：Including investigation obtain two generation brown paddy plant hoppers bosom ovum it is female into
Population number x of the worm in every hundred clumps of rice strains, works as x>When 0.4, the low instar nymphs stage produced in two generations carries out dispenser preventing and treating；
Described prevention and controls are divided into following several administration ways：
(1) during x≤0.4, the low instar nymphs peak period dispenser produced in three generations is once；
(2)0.4<During x≤2.1, each dispenser one in low instar nymphs peak period that the low instar nymphs and three generations produced in two generations are produced
It is secondary；
(3)x>When 2.1, once, the low instar nymphs peak period that three generations is produced is applied for the low instar nymphs peak period dispenser produced in two generations
Medicine is twice.
2. a kind of prevention and controls of rice grub brown paddy plant hopper as claimed in claim 1, it is characterised in that：In two described generations, are brown winged
Lice is cherished population number x and three generations brown paddy plant hopper population number y of the ovum female adult pest in every hundred clumps of rice strains and meets generalized linear regression number
Learn model：
Lny=0.943*x-3.191*c+0.703*x*c+7.200, c=0 or 1,
Represent that the low instar nymphs stage produced to two generations, without prophylactico-therapeutic measures, represents the low age produced to two generations during c=1 as c=0
The nymph stage takes dispenser prophylactico-therapeutic measures.
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Citations (4)
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|---|---|---|---|---|
| CN101401562A (en) * | 2008-11-13 | 2009-04-08 | 江苏省农业科学院 | Acquiring method for special small brown rice planthopper for inoculating rice black-streaked dwarf virus |
| CN102578050A (en) * | 2012-03-02 | 2012-07-18 | 浙江大学 | Method for obtaining brown plant hoppers with rice ragged stunt virus and application of method |
| CN102870743A (en) * | 2012-10-12 | 2013-01-16 | 江苏省农业科学院 | Method for preserving rice black-streaked dwarf virus indoor living bodies |
| CN103667173A (en) * | 2013-11-27 | 2014-03-26 | 中国计量学院 | Method for primary culturing of brown planthopper cells |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101401562A (en) * | 2008-11-13 | 2009-04-08 | 江苏省农业科学院 | Acquiring method for special small brown rice planthopper for inoculating rice black-streaked dwarf virus |
| CN102578050A (en) * | 2012-03-02 | 2012-07-18 | 浙江大学 | Method for obtaining brown plant hoppers with rice ragged stunt virus and application of method |
| CN102870743A (en) * | 2012-10-12 | 2013-01-16 | 江苏省农业科学院 | Method for preserving rice black-streaked dwarf virus indoor living bodies |
| CN103667173A (en) * | 2013-11-27 | 2014-03-26 | 中国计量学院 | Method for primary culturing of brown planthopper cells |
Non-Patent Citations (2)
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Inventor after: Fang Chunhua Inventor after: Wu Weiguo Inventor after: Bao Zhouming Inventor after: Chu Zhijian Inventor after: Zhang Jianxi Inventor after: Wu Ying Inventor after: Wang Hao Inventor after: He Yimin Inventor after: Cheng Chuandong Inventor before: Fang Chunhua Inventor before: Wu Weiguo Inventor before: Wu Ying Inventor before: Hu Gao Inventor before: Bao Zhouming |
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Effective date of registration: 20170505 Address after: 245900 05 Shop 6, rose East District, Huizhou District, Anhui, Huangshan City Applicant after: Mount Huangshan fengle Valley Ecological Agriculture Development Co. Ltd. Address before: 245900 agricultural commission of Huizhou District, Anhui, Huangshan City Applicant before: Fang Chunhua Applicant before: Wu Weiguo |
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