Sogatella furcifera prevention and control time determination method and device, equipment and storage medium

Abstract

The invention provides a sogatella furcifera prevention and control time determination method, device and equipment and a storage medium. The method comprises the following steps: obtaining time required by an incubation period and time required by each nymph period of sogatella furcifera; according to the time required by the incubation period and the time required by each nymph period, the occurrence time of each nymph period is calculated; and determining the sogatella furcifera prevention and control time based on the occurrence time of each nymph. According to the method disclosed by the invention, the optimal prevention and control time of the sogatella furcifera can be accurately predicted, so that a foundation is laid for effective prevention and control of the sogatella furcifera.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pest prediction, and in particular to a method, device, equipment and storage medium for determining the control time of white-backed planthopper. Background Art

[0002] White-backed planthopper Sogatella furcifera (Horváth), belonging to the Delphacidae family, is one of the most important rice pests in my country and is included in the first batch of my country's first-class crop pests. In addition to directly feeding on phloem sap to cause harm to rice, white-backed planthoppers can also cause mechanical damage to rice during feeding and oviposition, secretion of certain chemical substances (such as a variety of hydrolases), and excretion of "honeydew" on the surface of rice plants that is prone to mold growth, which can weaken the growth of rice or even cause death. In addition, it can also indirectly harm rice by spreading viruses, such as southern rice black-streaked dwarf virus (SRBSDV). Accurately predicting the best control time for white-backed planthoppers and controlling them within the best control time can greatly improve the control effect of white-backed planthoppers and ensure the normal growth of crops such as rice. Therefore, how to accurately predict the occurrence of white-backed planthoppers is a technical problem that needs to be solved by technicians in this field. Summary of the invention

[0003] In view of this, the present disclosure proposes a method, device, equipment and storage medium for determining the control time of white-backed planthoppers, which can accurately predict the optimal control time of white-backed planthoppers, thereby laying the foundation for effective control of white-backed planthoppers.

[0004] According to a first aspect of the present disclosure, a method for determining a white-backed planthopper control time is provided, comprising:

[0005] Obtain the time required for the gestation period of white-backed planthoppers and the time required for each nymphal stage;

[0006] Calculating the emergence time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage;

[0007] The time for controlling white-backed planthoppers is determined based on the time of appearance of each nymph.

[0008] In a possible implementation, the gestation period includes the pre-mating period, the spawning period and the egg period.

[0009] In a possible implementation, obtaining the time required for the gestation period of the white-backed planthopper includes:

[0010] Obtaining the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period;

[0011] The time required for the gestation period is calculated based on the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period.

[0012] In a possible implementation, the time required for each nymph stage is determined according to the temperature in the area where the white-backed planthopper occurs.

[0013] In a possible implementation, after determining the time for controlling white-backed planthoppers, the method further includes:

[0014] Based on the white-backed planthopper control time, generating a white-backed planthopper control reminder;

[0015] The white-backed planthopper prevention and control tips are pushed and displayed.

[0016] According to a second aspect of the present disclosure, a device for determining a white-backed planthopper control time is provided, comprising:

[0017] A time acquisition module is used to obtain the time required for the gestation period of the white-backed planthopper and the time required for each nymph stage;

[0018] A nymph stage appearance time calculation module, used for calculating the appearance time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage;

[0019] The control time determination module is used to determine the control time of white-backed planthoppers based on the appearance time of each nymph.

[0020] In a possible implementation, the gestation period includes the pre-mating period, the spawning period and the egg period;

[0021] When acquiring the time required for the gestation period of the white-backed planthopper, the time acquisition module is specifically used to:

[0022] Obtaining the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period;

[0023] The time required for the gestation period is calculated based on the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period.

[0024] In a possible implementation, the time required for each nymph stage is determined according to the temperature in the area where the white-backed planthopper occurs.

[0025] According to a third aspect of the present disclosure, a device for determining the control time of white-backed planthoppers is provided, comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to execute the method described in the first aspect of the present disclosure.

[0026] According to a fourth aspect of the present disclosure, a non-volatile computer-readable storage medium is provided, on which computer program instructions are stored, wherein the computer program instructions, when executed by a processor, implement the method described in the first aspect of the present disclosure.

[0027] In the present disclosure, a method, device, equipment and storage medium for determining the control time of white-backed planthoppers are provided. The method comprises: obtaining the time required for the gestation period of white-backed planthoppers and the time required for each nymph stage; calculating the appearance time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage; and determining the control time of white-backed planthoppers based on the appearance time of each nymph stage. The method disclosed in the present disclosure can accurately predict the optimal control time of white-backed planthoppers, thereby laying a foundation for the effective control of white-backed planthoppers.

[0028] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0030] Figure 1 A flow chart showing a method for determining the white-backed planthopper control time according to an embodiment of the present disclosure;

[0031] Figure 2 A schematic block diagram showing a device for determining white-backed planthopper control time according to an embodiment of the present disclosure;

[0032] Figure 3 A schematic block diagram of a device for determining the white-backed planthopper control time according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0033] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0034] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0035] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0036] <Method Example>

[0037] Figure 1 A flow chart showing a method for determining the control time of white-backed planthoppers according to an embodiment of the present disclosure is shown. Figure 1 As shown, the method includes steps S1100-S1300.

[0038] S1100, obtaining the time required for the gestation period of the white-backed planthopper and the time required for each nymphal stage.

[0039] In a possible implementation, the gestation period of the white-backed planthopper includes the pre-mating period, the oviposition period and the egg period. In this embodiment, when obtaining the time required for the gestation period of the white-backed planthopper, the following steps may be included:

[0040] First, obtain the time required for the pre-mating period, the egg-laying period, and the egg period. It should be noted that experimental observations show that the pre-mating period of white-backed planthoppers takes 1.7±0.3 days, that is, the pre-mating period takes 1.4 to 2 days; the egg-laying period takes 5±1 days, that is, the egg-laying period takes 4 to 6 days; and the egg period is determined by the average temperature in the preset time period after the white-backed planthoppers enter the peak migration period. The higher the average temperature, the shorter the egg period.

[0041] Specifically, in order to determine the peak period of migration of white-backed planthoppers, an intelligent insect monitoring lamp is installed in an unobstructed position in the center of the rice planting area to attract the migrating white-backed planthoppers through the intelligent insect monitoring lamp. The model of the intelligent insect monitoring lamp can be JDCB type, which can cover an area of ​​2,000 mu in a flat area to attract white-backed planthoppers.

[0042] It should be noted here that the smart insect monitoring lights should be started after 80% of the rice seedlings within the coverage area of ​​the smart insect monitoring lights have been transplanted and all the transplants in the area where the smart insect monitoring lights are located have been completed, so as to improve the accuracy of later predictions.

[0043] The intelligent insect monitoring light counts the number of white-backed planthoppers that are trapped. Specifically, the intelligent insect monitoring light performs image recognition on the trapped white-backed planthoppers at preset time intervals, so as to identify the number of white-backed planthoppers that are trapped in each time period through image recognition technology.

[0044] After the intelligent insect situation monitoring light identifies the number of white-backed planthopper adults trapped in each time period, it uploads it to the system that executes the disclosed method, so that the system can obtain the number of white-backed planthopper adults trapped in each time period and generate a white-backed planthopper migration curve. Among them, the intelligent insect situation monitoring light can upload the number of white-backed planthopper adults trapped in each time period in real time, and can also upload the number of white-backed planthopper adults trapped in each time period according to a preset time point. For example, it can automatically upload the number of white-backed planthopper adults trapped in each time period in the current time period at 0 o'clock every day, which is not specifically limited here.

[0045] After the system generates the migration curve of white-backed planthoppers, it will determine whether the peak value of the daily trapping amount is greater than the preset trapping threshold based on the generated migration curve of white-backed planthoppers. If it is determined to be greater than the preset trapping threshold, the day when the peak value of the daily trapping amount is greater than the trapping threshold is determined as the peak migration period of white-backed planthoppers. The trapping threshold is set to 10.

[0046] Furthermore, after determining the peak migration period of white-backed planthoppers, the average temperature within a preset time period after the peak migration period is obtained, and the time required for the egg stage is calculated based on the average temperature. Among them, the preset time period can be 15 days after entering the peak migration period. Specifically, the temperature prediction value 15 days after the peak migration period is obtained, and the average temperature value for 15 days is calculated based on the temperature prediction value for 15 days. After obtaining the average temperature value for 15 days, the egg stage time corresponding to the current average temperature is determined based on the correspondence between the preset temperature and the time required for the egg stage. The egg stage time is the time required for the egg stage of the white-backed planthoppers used in the present disclosure. Among them, the correspondence between the temperature and the time required for the egg stage can be as shown in Table 1.

[0047] Table 1 Unit: Day

[0048]

[0049] It can be seen from Table 1 that in the preset time period after the peak migration period: when the average temperature is 14-16 degrees, the egg stage is 23.1 days; when the average temperature is 17-22 degrees, the egg stage is 12 days; when the average temperature is 23-26 degrees, the egg stage is 7.4 days; when the average temperature is 27-28 degrees, the egg stage is 6.4 days; when the average temperature is 29-30 degrees, the egg stage is 5.5 days.

[0050] Second, the time required for the gestation period is calculated based on the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period. Specifically, the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period are summed, and the calculated sum is the time required for the gestation period of the white-backed planthopper.

[0051] In a possible implementation, the time required for each nymph stage is determined based on the temperature of the area where the white-backed planthopper occurs. The temperature of the area where the white-backed planthopper occurs here is the average temperature of the area where the white-backed planthopper is located during a preset time period after the peak period of migration of the white-backed planthoppers described above. How to obtain the average temperature has been described in detail above and will not be repeated here.

[0052] After determining the temperature of the area where the white-backed planthopper occurs, the time required for each nymph stage can be determined based on the temperature. Among them, the nymph stage is divided into the 1st instar nymph stage, the 2nd instar nymph stage, the 3rd instar nymph stage, the 4th instar nymph stage and the 5th instar nymph stage, and the corresponding relationship between the time required for each nymph stage and the temperature is shown in Table 1. In this way, after determining the temperature of the area where the white-backed planthopper occurs, the time required for each nymph stage corresponding to the temperature in the area where the white-backed planthopper occurs can be found by querying Table 1. For example, when the temperature in the area where the white-backed planthopper occurs is in the range of 14 to 16 degrees, the time required for the 1st instar nymph stage, the 2nd instar nymph stage, the 3rd instar nymph stage, the 4th instar nymph stage and the 5th instar nymph stage are 10.7 days, 8 days, 10 days, 11.3 days and 15.7 days respectively.

[0053] S1200, calculating the appearance time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage. The earliest appearance time of each nymph stage is equal to the time required for the gestation period plus the time required to reach the previous nymph stage. The specific calculation formula is as follows:

[0054]

[0055] In the formula, is the time required for the gestation period, where x1 is the time required for the pre-mating period, x2 is the time required for the egg-laying period, x3 is the time required for the egg stage, and μ(θ) is the time required to reach the previous nymph stage. The specific calculation formula is as follows:

[0056]

[0057] In the formula, θ j is the time required for the j-instar nymph stage, for example, θ1 is the time required for the 1-instar nymph stage, θ m The time required to reach the previous nymph stage. For example, if we want to calculate the earliest appearance time of the 3rd instar nymph stage, then m is taken as 2, that is, the sum of the time θ1 required for the 1st instar nymph stage and the time θ2 required for the 2nd instar nymph stage is calculated as the time μ(θ) required to reach the previous nymph stage.

[0058] The latest appearance time of each nymph stage is equal to the time required for the gestation period plus the time required to reach the current nymph stage. The specific calculation method can be found in the earliest appearance time of each nymph stage, which will not be repeated here.

[0059] Based on the earliest appearance time, the latest appearance time, the deviation of days in the pre-mating period, and the deviation of days in the pre-oviposition period of each nymph stage, the range of the appearance time of each nymph stage can be determined. For example, the temperature in the area where white-backed planthoppers occur is between 14 and 16 degrees. According to Table 1, the time required for the pre-mating period of white-backed planthoppers is 1.7±0.3 days, the time required for the egg-laying period is 5±1 days, the time required for the egg period is 23.1 days, the time required for the 1st instar nymph period is 10.7 days, and the time required for the 2nd instar nymph period is 8 days. Then, the earliest appearance time of the 2nd instar nymph period = 1.7+5+23.1+10.7=40.5 days, and the latest appearance time of the 2nd instar nymph period = 1.7+5+23.1+10.7+8=48.5 days. Adding the deviation of the number of days in the pre-mating period of ±0.3 days and the deviation time of the pre-oviposition period of ±1 day, the final occurrence time of the 2nd instar nymph period is determined to be (40.5-48.5)±1.3 days. That is, the emergence time of the 2nd instar nymph is (40.5-48.5)±1.3 days after the peak period of the migration of white-backed planthoppers. Referring to the algorithm of the emergence time of the 2nd instar nymphs, the emergence time of each nymph stage corresponding to the temperature in the area where the white-backed planthoppers occur can be calculated.

[0060] It should be noted that the main harm of white-backed planthoppers is the peak of nymphs after the peak of adult migration. At the same time, the feeding amount of nymphs increases greatly after the third instar, and the feeding damage is serious. Therefore, the best prevention and control period is set at the second instar nymph stage, and the serious damage period is identified as the third instar nymph stage, the fourth instar nymph stage, and the fifth instar nymph stage. Therefore, it is only necessary to calculate the appearance time of the second to fifth instar nymph stages.

[0061] S1300, based on the appearance time of each nymph, determine the control time of white-backed planthopper. Specifically, the calculated appearance time of the 2nd instar nymph stage is used as the optimal control time for white-backed planthopper control, and the time area is displayed in yellow in the computer graphic display. The appearance time of the 3rd to 5th instar nymph stage is used as the serious damage time, and the time area is displayed in red in the computer graphic display.

[0062] In a possible implementation, after determining the white-backed planthopper control time, the method further includes: generating a white-backed planthopper control reminder based on the white-backed planthopper control time; and pushing and displaying the white-backed planthopper control reminder. Specifically, the calculated optimal control time and the serious damage time can be pushed and displayed to the user as prompt information, and the corresponding control measures can be pushed and displayed to the user, so that the rice field manager can perform white-backed planthopper control operations in a timely manner.

[0063] It should be noted here that in order to provide effectiveness of the prediction of the white-backed planthopper control time, the method for determining the white-backed planthopper control time in the present disclosure will only be executed when the peak migration period of the white-backed planthopper is determined by the white-backed planthopper migration curve (see above for specific steps).

[0064] The present disclosure provides a method for determining the control time of white-backed planthoppers, including: obtaining the time required for the gestation period of white-backed planthoppers and the time required for each nymph stage; calculating the appearance time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage; and determining the control time of white-backed planthoppers based on the appearance time of each nymph stage. The method disclosed in the present disclosure can accurately predict the optimal control time of white-backed planthoppers, thereby laying a foundation for the effective control of white-backed planthoppers.

[0065] <Device Example>

[0066] Figure 2 A schematic block diagram of a device for determining the control time of white-backed planthoppers according to an embodiment of the present disclosure is shown. Figure 2 As shown, the device 100 includes:

[0067] The time acquisition module 110 is used to acquire the time required for the gestation period of the white-backed planthopper and the time required for each nymph stage;

[0068] A nymph stage appearance time calculation module 120, for calculating the appearance time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage;

[0069] The control time determination module 130 is used to determine the control time of white-backed planthoppers based on the appearance time of each nymph.

[0070] In a possible implementation, the gestation period includes the pre-mating period, the spawning period and the egg period;

[0071] When acquiring the time required for the gestation period of the white-backed planthopper, the time acquisition module is specifically used to:

[0072] Obtaining the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period;

[0073] The time required for the gestation period is calculated based on the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period.

[0074] In a possible implementation, the time required for each nymph stage is determined according to the temperature in the area where the white-backed planthopper occurs.

[0075] <Equipment Embodiment>

[0076] Figure 3 A schematic block diagram of a device for determining the white-backed planthopper control time according to an embodiment of the present disclosure is shown. Figure 3As shown, the device 200 for determining the control time of white-backed planthoppers includes: a processor 210 and a memory 220 for storing executable instructions of the processor 210. The processor 210 is configured to implement any of the above-mentioned methods for determining the control time of white-backed planthoppers when executing the executable instructions.

[0077] Here, it should be noted that the number of processors 210 may be one or more. At the same time, in the device 200 for determining the control time of white-backed planthoppers in the embodiment of the present disclosure, an input device 230 and an output device 240 may also be included. Among them, the processor 210, the memory 220, the input device 230 and the output device 240 may be connected through a bus or in other ways, which are not specifically limited here.

[0078] The memory 220 is a computer-readable storage medium that can be used to store software programs, computer executable programs, and various modules, such as the program or module corresponding to the method for determining the control time of white-backed planthoppers in the embodiment of the present disclosure. The processor 210 executes various functional applications and data processing of the device 200 for determining the control time of white-backed planthoppers by running the software programs or modules stored in the memory 220.

[0079] The input device 230 may be used to receive input numbers or signals. The signals may be key signals related to user settings and function control of the device / terminal / server. The output device 240 may include display devices such as display screens.

[0080] <Storage Medium Embodiment>

[0081] According to a fourth aspect of the present disclosure, a non-volatile computer-readable storage medium is also provided, on which computer program instructions are stored. When the computer program instructions are executed by the processor 210, any of the above-mentioned methods for determining the control time of white-backed planthoppers is implemented.

[0082] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for determining the time for controlling white-backed planthoppers, characterized in that: include: Obtain the time required for the gestation period of white-backed planthoppers and the time required for each nymphal stage; Calculating the emergence time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage; The time for controlling white-backed planthoppers is determined based on the time of appearance of each nymph.

2. The method according to claim 1, characterized in that The gestation period includes the pre-mating period, the egg-laying period and the egg period.

3. The method according to claim 2, characterized in that When obtaining the time required for the gestation period of white-backed planthoppers, include: Obtaining the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period; The time required for the gestation period is calculated based on the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period.

4. The method according to claim 1, characterized in that: The time required for each nymphal stage is determined according to the temperature in the area where the white-backed planthopper occurs.

5. The method according to claim 1, characterized in that After determining the time for white-backed planthopper control, it also includes: Based on the white-backed planthopper control time, generating a white-backed planthopper control reminder; The white-backed planthopper prevention and control tips are pushed and displayed.

6. A device for determining the control time of white-backed planthoppers, characterized in that: include: A time acquisition module is used to obtain the time required for the gestation period of the white-backed planthopper and the time required for each nymph stage; A nymph stage appearance time calculation module, used for calculating the appearance time of each nymph stage according to the time required for the gestation period and the time required for each nymph stage; The control time determination module is used to determine the control time of white-backed planthoppers based on the appearance time of each nymph.

7. The device according to claim 6, characterized in that The gestation period includes the pre-mating period, the spawning period and the egg period; When acquiring the time required for the gestation period of the white-backed planthopper, the time acquisition module is specifically used to: Obtaining the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period; The time required for the gestation period is calculated based on the time required for the pre-mating period, the time required for the egg-laying period, and the time required for the egg period.

8. The device according to claim 6, characterized in that The time required for each nymphal stage is determined according to the temperature in the area where the white-backed planthopper occurs.

9. A device for determining the control time of white-backed planthoppers, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to implement the method described in any one of claims 1 to 5 when executing the executable instructions.

10. A non-volatile computer-readable storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 5 is implemented.

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