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GB/T 15804-2011 English PDF

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GB/T 15804-2011: Rules for monitoring and forecast of the sorghum aphid (Melanaphis sacchai Zehnter)
Status: Valid

GB/T 15804: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 15804-2011English259 Add to Cart 3 days [Need to translate] Rules for monitoring and forecast of the sorghum aphid (Melanaphis sacchai Zehnter) Valid GB/T 15804-2011
GB/T 15804-1995English359 Add to Cart 3 days [Need to translate] Rules for investigation and forecast of the sorghum aphid (Melanaphis sacchai Zehnter) Obsolete GB/T 15804-1995

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Basic data

Standard ID GB/T 15804-2011 (GB/T15804-2011)
Description (Translated English) Rules for monitoring and forecast of the sorghum aphid (Melanaphis sacchai Zehnter)
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B16
Classification of International Standard 65.020.01
Word Count Estimation 11,144
Date of Issue 2011-09-29
Date of Implementation 2011-12-01
Older Standard (superseded by this standard) GB/T 15804-1995
Regulation (derived from) National Standards Bulletin 2011 No. 14
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the sorghum aphid systematic survey, field survey and forecasting methods and other technical content. This standard applies to sorghum aphid forecasting research and forecasting.

GB/T 15804-2011: Rules for monitoring and forecast of the sorghum aphid (Melanaphis sacchai Zehnter)


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Rules for monitoring and forecast of the sorghum aphid (Melanaphis sacchai Zehnter) ICS 65.020.01 B16 National Standards of People's Republic of China Replacing GB/T 15804-1995 Sorghum Aphid forecast Technical Specifications thesorghumaphid (MelanaphissacchaiZehnter) Issued on. 2011-09-29 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Terms and definitions 1 Level 3 occurs grading index 1 4 System survey 1 Daejeon census 2 5 Prediction 2 6 7 forecast data collection, reporting and summary 2 Appendix A (normative) crop sorghum aphid pest survey data statistical forms 3 Annex B (informative) predators Unit Conversion Table 6 Annex C (normative) sorghum aphid Mode Report 7

Foreword

This standard replaces GB/T 15804-1995 "Sorghum Aphid investigation and forecast." This standard and GB/T 15804-1995 compared to the main changes are as follows. --- The increase in the content of sorghum aphid prediction methods and other aspects of the original "investigation and forecast" to "forecasting technical specifications"; --- Added "Terms and Definitions" section, which provides oil from the plants, the definition of occurrence of the peak; --- Increased sorghum aphid occurrence Severity Level Indicators; --- Remove the body's "natural enemy unit conversion table" and "systematic survey and census records list", which was moved into the appendix, so that standards Content clearer and more consistent; --- Increase census aphids peak period with a view to a more dynamic and comprehensive control aphids damage situation; --- Increased sorghum aphid mode report, and as a normative appendix, requiring regular reports; --- Increased occurrence trend prediction and forecasting the occurrence degree, making the forecast more complete technical specifications and systems to meet production needs. The Standard Appendix A, Appendix C is a normative appendix, Appendix B is an informative annex. This standard is proposed and managed by the People's Republic of China Ministry of Agriculture. Drafting of this standard. National Agricultural Technology Extension and Service Center, the Liaoning Provincial Plant Protection Station. The main drafters of this standard. GRAPHIC COMMUNICATION Zeng Juan, Ma Hui, Zhangwan Min. This standard replaces the standards previously issued as follows. --- GB/T 15804-1995. Sorghum Aphid forecast Technical Specifications

1 Scope

This standard specifies the technical content of sorghum aphid systematic survey, field survey and forecasting methods and so on. This standard applies to sorghum aphid forecast research and forecasting.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 From oil plants secreteoilplant Sorghum Aphid gather on the dorsal or sorghum stalk damage, learning from the host plant sap also secrete large amounts of honeydew, honey dew dripping In parts of the foliage and stems, in severe cases it can accumulate into a layer, shiny shiny plant, the so-called oil from plants. There are a leaf from the plant oil, which is counted as starting Oil strains. 2.2 Peak occurs flourishstage 16% of the total amount of aphids date number of aphids sorghum growth period, the beginning of peak occurred; the number of aphids full of sorghum 50% of the total growth of aphids date for the occurrence of the peak; the number of aphids aphids total growth period of sorghum 84% Date, Sheng occurred late; from the beginning of peak to hold the end of the period of time for the peak occurs. In practice, a systematic investigation aphids and aphid previous Compare the number of relationship between the amount of reference for judging the occurrence of peak.

3 occurred Severity Level Indicators

Sorghum Aphid occur to the extent local peak occurs one hundred aphids as an index, the occurrence area ratio as a reference index, is divided into five, namely, light hair Health (1), lighter occur (level 2), the occurrence of moderate (grade 3), place emphasis (4), Occurrence (5), indicator values \u200b\u200bat all levels are shown in Table 1. Table 1 Sorghum Aphid occurred Severity Level Indicators Occurrence degree level indicator Level 1 2 3 4 5 One hundred aphids/0.5 ten thousand \u003cX≤1.5 1.5\u003cX≤3.0 3.0\u003cX≤5.0 5.0\u003cX≤10.0 X\u003e 10.0 Occurrence area ratio /% Y < 15.0 15.0 \u003cY≤25.0 25.0\u003cY≤35.0 35.0\u003cY≤50.0 Y\u003e 50.0 NOTE. X --- one hundred aphids; Y --- occurrence area ratio. Wherein the area ratio of the occurrence of a reference index.

4 System survey

4.1 investigation time Since sorghum emergence 2-3 leaf stage, every 5d investigation once, when milk stage to aphid significantly decreased. 4.2 Survey Methods Choose the terrain and the environment is conducive to the cultivation of sorghum aphid occurrence, planting susceptible varieties, with an area of \u200b\u200bmore than 1000m2 sorghum field 2, as Systematic investigation fields. Every field by a single diagonal sampling, fixed 5 points, each point of the investigation 1 lines, each tag 20, a total of 100 investigation. When the field There aphid strain rate of over 70%, and the amount of the difference between strains of aphid little time, each field can reduce the number of trees to survey 50 that 10 per point; when the aphids feed When the peak occurs every five survey points, a total of 25 check. 4.3 Survey content In the initial survey, check the total number of aphids, winged aphid number, the number of wingless aphids, predators and parasitic parts and oils from plants and other findings credited high

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