GB/T 17980.17-2026Pesticides - Guidelines for field efficacy trials - Part 17: Acaricides against spider mites on beans and vegetables (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document is Part 17 of GB/T 17980, "Guidelines for Field Efficacy Tests of Pesticides". GB/T 17980 has already published the following... part.

1.Insecticide Control of Lepidoptera Boring Pests in Rice;

2.Insecticide Control of Rice Leaf Roller;

3.Pesticide Control of Rice Leafhoppers;

17.Acaricides for the Control of Spider Mites on Legumes and Vegetables;

---Part 149: Insecticides for the Control of Red Imported Fire Ants. This document replaces GB/T 17980.17-2000 "Guidelines for Field Efficacy Testing of Pesticides (I) Acaricides for the Control of Legumes and Vegetable Leaves". Compared with GB/T 17980.17-2000, the main technical changes in "Mites" are as follows, except for structural adjustments and editorial modifications.

a) The scope of application has been changed (see Chapter 1, Chapter 1 of the.2000 edition);

b) The descriptions and requirements for the test subjects and crops have been revised (see 4.1,

2.1 of the.2000 edition);

c) The description and requirements of environmental conditions have been revised (see 4.2,

2.2 of the.2000 edition);

d) Added provisions for test treatment (see 5.1);

e) The requirements for test and control reagents have been changed (see 5.2,

1 Scope

GB/T 17980.17-2026 is the Chinese national standard covering the trial protocol for mite control in vegetables - counting mites and eggs on the undersides of leaves, and separating the effect on the pest from the effect on the predators that were holding it down. The GB/T 17980 series is what a pesticide registration in China rests on: it fixes the plot design and replication, the application rate and timing, the assessment of the pest or disease and of the crop, and the analysis of the result. It replaces GB/T 17980.17-2000 and has been in force since 1 September 2026. It was issued on 27 February 2026 and has been in force since 1 September 2026, replacing GB/T 17980.17-2000. The document is under the responsibility of the Ministry of Agriculture and Rural Affairs. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document describes the methods for field plot efficacy trials of acaricides for controlling spider mites on legumes and vegetables. For the evaluation of efficacy, field efficacy trials of other vegetable spider mites should be conducted in accordance with the same guidelines.

4 Test conditions

4.1 Test subjects and crops The test subjects were spider mites such as Tetranychus cinnabarinus, Tetranychus two-spotted, and Tetranychus truncatula. The experimental crops were broad-leaved vegetables such as legumes, cucurbits, and solanaceous vegetables. Record the crop and variety names.

4.2 Test Conditions The experimental sites should be representative fields with moderate spider mite infestation. The crop varieties and cultivation conditions (soil type) of all experimental plots should be consistent. The planting method (type, fertilizer, tillage and row spacing) should be uniform and consistent, and conform to local scientific agricultural practices.

5 Experimental Design and Arrangement

5.1 Test Treatment Test reagents, control reagents, and blank controls should be included.

6 Applying pesticides

6.1 Application Method Follow the test requirements and label instructions. Application methods should be adapted to local scientific agricultural practices. Record the application methods and procedures. process.

6.2 Application equipment Select commonly used equipment, or select equipment according to the test requirements. Record the type of equipment used and the operating conditions (e.g., working pressure, nozzle type). Information such as type and nozzle diameter, etc.

6.3 Application time and frequency Conduct the test according to the requirements and label instructions. It is best to do so at the early stage of spider mite infestation, when approximately 10% of the leaves have an average of 3 to 10 active mites per leaf. Apply pesticides at the appropriate times. Record the number of applications, the date of each application, and the crop's growth stage.

6.4 Dosage Administer the medication according to the test requirements and the dosage specified on the label. Record the prepared dosage and the amount of active ingredient used. The prepared dosage is usually expressed in mL/667m2 (milliliters). The dosage is expressed as per 667 square meters (g/667m2) or g/667m2 (grams per 667 square meters), and the effective ingredient dosage is expressed as g/hm2 (grams per hectare). For spraying When applying pesticides by fog, record the amount of pesticide solution used per hectare, expressed in L/hm2 (liters per hectare). Ensure accurate dosage and uniform distribution during application. Dosage deviation should not exceed ±10%. If it exceeds ±10%, it should be recorded and its impact assessed.

6.5 Chemical requirements for controlling other diseases, pests, and weeds If other pesticides are used to control pests, diseases, and weeds other than the test subjects during the experiment, those that have no effect on the test pesticides or test subjects should be selected. The reagents were used separately from the test and control reagents, and all plots were treated uniformly to minimize interference from these reagents. Extent. Record accurate information about the application of this type of medication (such as the generic name of the medication, dosage form, content of active ingredient, dosage, method of application, and application method). (Time, target of prevention and control, etc.)

8 Methods for calculating drug efficacy

8.1 Mite reduction rate The mite reduction rate is calculated according to formula (1).

8.2 Prevention and control effect The prevention and control effect is calculated according to formula (2) or formula (3).

8.3 Statistical Analysis The results were analyzed and differences were statistically significant using appropriate biostatistical methods (such as Duncan's new multiple range method or other multiple comparison methods). Compare the significance of the data and indicate the statistical analysis software used.

9 Results and Report Writing

Based on the experimental results and statistical analysis, the product characteristics, efficacy, safety, and key usage techniques were evaluated, and an experimental report was compiled. The report should include a summary table of the original data. GB/T 17980.17-2026. Field Efficacy Test Guidelines for Pesticides - Part 17. Acaricides for the Control of Spider Mites on Legumes and Vegetables ICS

17 National Standards of the People's Republic of China Replaces GB/T 17980.17-2000 Guidelines for Pesticide Field Efficacy Trials Part

17.Acaricides for the Control of Spider Mites on Legumes and Vegetables Published on 2026-02-

27 Implemented on 2026-09-

01 State Administration for Market Regulation The State Administration for Standardization issued a statement.