CN101147478B - High-power centimeter wave temperature controlling method for heat-killing plant insect - Google Patents
High-power centimeter wave temperature controlling method for heat-killing plant insect Download PDFInfo
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- CN101147478B CN101147478B CN2007100477222A CN200710047722A CN101147478B CN 101147478 B CN101147478 B CN 101147478B CN 2007100477222 A CN2007100477222 A CN 2007100477222A CN 200710047722 A CN200710047722 A CN 200710047722A CN 101147478 B CN101147478 B CN 101147478B
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Abstract
The present invention belongs to the field of agricultural environment-protecting type pests-killing technology. In the concrete, it relates to a method for killing plant pests by adopting high-power centimeter wave temperature-controlled heat. It is characterized y that said invention adopts a high-power centimeter wave emitting system to orientably emit centimeter wave to directly radiate plants, in which the frequency of radiation is at least twice, and the frequency range of said centimeter wave is 10-35 GHz.
Description
Technical field
The invention belongs to the technical field of agricultural environmental protection type kill pests, be specifically related to a kind of method of high-power centimeter wave temperature controlling heat killing plant insect.
Background technology
Ecomomic cause analysis according to the biological control science and technology sustainable development of Chinese Academy of Sciences China, annual 300000 tons the agricultural chemicals that needs use value to reach 9,000,000,000 yuan of China is eliminated the crops plague of insects that area reaches ten million hectare at present, actual performance deinsectization effect only accounts for 5% in so a large amount of agricultural chemicals, and the agricultural chemicals more than 95% causes environmental pollution on a large scale among being lost to air, soil, waters, have a strong impact on farming, the poultry of China, the quality of aquatic products, it is the major incentive of many difficult diseases that agricultural chemicals enters that human body accumulates gradually.
Since 20th century the mid-80s, the emphasis of pest control is to adopt natural enemy control insect pest, but still have many natural enemies because too narrow to the environmental adaptation scope, reaction to agricultural chemicals is more responsive than insect, or, be difficult in sustainable insect pest control, play a significant role to reasons such as the insect pest control action are too slow.A large amount of use agricultural chemicals eliminate destructive insects and have also caused the death of pest natural enemy, have destroyed the ecological balance, make less important insect rise to primary pest, have more aggravated the occurrence frequency of the plague of insects.And adopting natural enemy control insect pest usefulness limited, the insect-resistant transgenic plants progress far can not satisfy the current requirement of killing insect pest again.For this reason, international food and agricultural organization actively appealing development of new, effectively, safety, free of contamination control of insect technology to be to tackle the global plague of insects.The present invention is the environment-friendly type pest killing method
Microwave heating effect can cause organism metabolic disturbance, moisture rapid evaporation, protein denaturation etc., thereby reaches the effect of quick desinsection.Heating using microwave has characteristics such as penetration power is strong, thermal inertia is little, selectivity is strong, speed is fast, pollution-free, inspection and quarantine is removed the evil so microwave heating effect is applied to, the sterilization and disinfestation mildew-resistant of files, foodstuff preservation, food processing and sterilization, many aspects such as the drying of bamboo material and desinsection.
Patent application about microwave desinsection, the Chinese patent " a kind of microwave electromagnetic field radiant energy disinsection machine (patent No. is 01273962.6) " of bulletin in 2003, the employing microwave frequency is 915-2450MHz, because the microwave frequency of using is lower, the microwave energy penetration depth is big (greater than 1cm), and therefore the size of insect larva uses this frequency range insecticidal effect not good in the mm magnitude.The mechanism of kill pests is the electromagnetic wave bio-heating effectiveness in addition, the microwave energy that is an insect bulk absorption makes body temperature raise rapidly and dead, also contain a large amount of moisture in vegetables and the crop, absorbed lot of energy equally in the irradiation process and the temperature rising, thereby cause damage even the death of crop etc., so these apparatus and method are not suitable for the insect of killing in the plant.The Chinese patent " microwave weeding sterilization and weeding, insect disinfestation and sterilizing with microwave machine (patent No. 02129628.6) " of bulletin in 2003, integrate weeding, desinsection, sterilize, green plantss such as lawn have still also been damaged though killed insect, therefore be not suitable for the insect of killing in the plant yet, only be only applicable to before crops are cultivated, kill the seed of insect pest in soil larva and ovum and weeds.
Summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art part; a kind of method of high-power centimeter wave temperature controlling heat killing plant insect is provided; this method is in certain power bracket; irradiation by at least twice; plant injury minimum in kill pests; it can be recovered at short notice, at the protection environment with when guaranteeing personal security, without any residual.
The object of the invention realizes being finished by following technical scheme:
A kind of method of high-power centimeter wave temperature controlling heat killing plant insect, it is characterized in that this method adopts high power centimeter wave emission system directional transmissions to go out the direct irradiation plant of centimeter wave, wherein the number of times of irradiation is at least secondary, and the frequency range of the centimeter wave of being launched is 10-35GHz.
Each irradiation when the plant surface temperature reaches 50-60 ℃, stops irradiation.
The time interval between described at least twice irradiation is 5-15 second.
Advantage of the present invention is, the high power centimeter wave can be in a short period of time kill pests fast, and surrounding environment is not had tangible influence, injury influence to plant is minimum, compare the chemical pesticide deinsectization, it has following advantage: environmental protection, reusable, quick, efficient, and because a consumed power forms cheap, use and easy to operate has the broad spectrum disinfestation ability.
Description of drawings
Accompanying drawing 1 embodiment of the invention is implemented schematic diagram;
Embodiment
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technical staff's of the same trade understanding:
As shown in Figure 1, symbol 1-10 represents respectively among the figure: centimeter wave emission system 1, high pressure dial gauge and adjusting knob 2, electric current dial gauge 3, power are adjusted the insect 10 in knob 4, centimeter wave emission switch 5, waveguide 6, electromagnetic horn 7, electromagnetic wave 8, lawn 9, the lawn.
It is as follows that embodiment is used for lawn desinsection concrete operations step:
The first step is set up centimetric emission system (comprising the setting of contactless temperature-measuring equipment), according to the individual size of insect, suitably selective system frequency 10-35GHz;
Second step was opened the centimetric emission system power supply, adjusted adjusting knob 2 and power and adjusted knob 4, opened centimeter wave emission switch 5, and the lawn variations in temperature is monitored on the direct irradiation of directional transmissions centimeter wave lawn simultaneously;
The 3rd step worked as the lawn temperature and reaches 50-60 ℃, closed centimeter wave emission switch 5, stopped irradiation;
Open centimeter wave emission switch 5 once more behind the 4th step 5-20s, the direct irradiation of directional transmissions centimeter wave lawn, the lawn temperature reaches 50-60 ℃ once more;
The 5th step irradiation at interval like this 1-2 time, irradiation finishes.
This process at least can be so that the insect lethality in the lawn reaches more than 80%, and the damage ratio on lawn reaches below 30% and can recover.
Concrete effect is as follows:
Embodiment 1:
Start the centimeter wave emission system, adjust its power output, the emission centimeter wave, use the surface temperature on lawn, infrared radiation thermometer telemeasurement irradiation place simultaneously, when reaching about 55 ℃, the lawn surface temperature stops irradiation, launch centimeter wave behind the 10s once more, infrared radiation thermometer is measured the surface temperature on lawn, irradiation place, when reaching about 55 ℃ once more, the lawn surface temperature finishes irradiation, after this operating process is finished, insect lethality on the lawn has reached 95%, finds that the lawn damage is 22% and observe, and recover fully on 7 days lawns behind the irradiation.
Embodiment 2:
Start the centimeter wave emission system, adjust its power output, the emission centimeter wave, use the surface temperature on lawn, infrared radiation thermometer telemeasurement irradiation place simultaneously, when reaching about 50 ℃, the lawn surface temperature stops irradiation, launch centimeter wave behind the 10s once more, infrared radiation thermometer is measured the surface temperature on lawn, irradiation place, when reaching about 50 ℃ once more, the lawn surface temperature finishes irradiation, after this operating process is finished, insect lethality on the lawn has reached 80%, finds that the lawn damage is 12% and observe, and recover fully on 5 days lawns behind the irradiation.
Embodiment 3:
Start the centimeter wave emission system, adjust its power output, the emission centimeter wave, use the surface temperature on lawn, infrared radiation thermometer telemeasurement irradiation place simultaneously, stop irradiation when the lawn surface temperature reaches about 60 ℃, after this operating process was finished, the insect lethality on the lawn had reached 86%, find that the lawn damage is 9.5% and observe, recover fully on 15 days lawns behind the irradiation.
The foregoing description has been enumerated operating process and the effect when surface, irradiation process medium-height grass level ground reaches different temperatures.In concrete the application, can suitably adjust temperature and irradiation interval number of times, be unlikely to the effect that the lawn is badly damaged again thereby reach effective desinsection according to the variation of different environment (as wind speed, temperature etc.).
Facts have proved that the microwave desinsection effect of utilizing f=10-35GHz is fine.The tranmitting frequency of centimeter wave can be selected according to the size of polypide: for bigger polypide, can select lower frequency for use; Than the higher frequency of the optional usefulness of microzooid.
Claims (2)
1. the method for a centimeter wave temperature controlling heat killing plant insect, it is characterized in that this method adopts centimeter wave emission system directional transmissions to go out the direct irradiation plant of centimeter wave, wherein the number of times of irradiation is at least secondary, the frequency range of the centimeter wave of being launched is 10-35GHz, each irradiation, when the plant surface temperature reaches 50-60 ℃, stop irradiation.
2. the method for a kind of centimeter wave temperature controlling heat killing plant insect according to claim 1 is characterized in that, the time interval between described at least twice irradiation is 5-15 second.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100477222A CN101147478B (en) | 2007-11-02 | 2007-11-02 | High-power centimeter wave temperature controlling method for heat-killing plant insect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100477222A CN101147478B (en) | 2007-11-02 | 2007-11-02 | High-power centimeter wave temperature controlling method for heat-killing plant insect |
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| Publication Number | Publication Date |
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| CN101147478A CN101147478A (en) | 2008-03-26 |
| CN101147478B true CN101147478B (en) | 2011-03-30 |
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| CN2007100477222A Expired - Fee Related CN101147478B (en) | 2007-11-02 | 2007-11-02 | High-power centimeter wave temperature controlling method for heat-killing plant insect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111034697A (en) * | 2020-03-04 | 2020-04-21 | 刘献伟 | Portable device for killing locust by utilizing microwave radiation |
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