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NY/T 612-2002: Rule for the investigation and forecast of wheat aphides
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NY/T 612-2002: Rule for the investigation and forecast of wheat aphides

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Rule for the investigation and forecast of wheat aphides ICS 65.020 B16 People's Republic of China Agricultural Industry Standard Wheat aphid survey and survey specifications Released on December 12,.2002 2003-03-01 implementation Published by the Ministry of Agriculture

Foreword

Appendix A and Appendix B of this standard are normative appendices. This standard was proposed by the Plantation Management Department of the Ministry of Agriculture. This standard was drafted. National Agricultural Technology Extension Service Center, Beijing Plant Protection Station. The main drafters of this standard. Jiang Yuying, Yang Jianguo, Zhang Yuejin, Liu Wancai, Gou Jianjun. Wheat aphid survey and survey specifications

1 Scope

This standard specifies the project records and grading indicators for the occurrence degree of wheat mites, systematic investigation, field census and natural enemy investigation methods, and measurement reports. Data collection, reporting and aggregation methods. This standard is applicable to the implementation of the survey report on wheat aphids.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. GB/T 15799 cotton quilt survey report specification

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 Systematic investigation In order to understand the dynamics of the occurrence and growth of pests and diseases in a region, a survey of fixed-point, timing, and fixed methods was conducted. 3.2 Daejeon census In order to understand the overall occurrence of pests and diseases in a region, a multi-point survey was conducted on a larger scale. 3.3 Recover damages The yield loss of the crops recovered by controlling the pests and larvae, that is, the increased yield of the control area than the control area. 3.4 Actual loss The yield loss caused by the remaining pests and diseases of the crops after the crops have been controlled by the pests and diseases. 3.5 Sputum rate The number of buckwheat plants (the same meaning of stem and stem in this standard, both single or single ear) was investigated as a percentage of the total number of investigated wheat plants. 3.6 100% Investigate or convert the number of aphids on 100 wheat plants. 3.7 Period of occurrence The cumulative amount of locusts in the season reached 16%, 50%, and 84% of the total amount of time, which was the beginning of the peak period, the peak period, and the end of the period. The period from the end of the period to the end of the period is the peak period. ...