GB/T 17980.9-2026Pesticides - Guidelines for field efficacy trials - Part 9: Insecticides against aphids in orchards (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 9 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;

9.Insecticide Control of Aphids on Fruit Trees;

---Part 149: Insecticides for the Control of Red Imported Fire Ants. This document replaces GB/T 17980.9-2000 "Guidelines for Field Efficacy Tests of Pesticides (I) Insecticides for the Control of Aphids on Fruit Trees", and is consistent with... Compared with GB/T 17980.9-2000, apart from structural adjustments and editorial changes, the main technical changes are as follows:

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

b) The requirements for test subjects and crops have been changed (see 4.1,

2.1 of the.2000 edition);

c) The environmental conditions requirements have been changed (see 4.2,

2.2 of the.2000 edition);

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

e) The descriptions and requirements for the test and control reagents have been revised (see 5.2,

1 Scope

GB/T 17980.9-2026 is the Chinese national standard covering the trial protocol for orchard aphid control - the counts on marked shoots, the effect on the natural enemies and the timing relative to the curling of the leaves that hides the colony. 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, disease or weed and of the crop, and the analysis of the result. It replaces GB/T 17980.9-2000 and has been in force since 1 September 2026. Issued on 27 February 2026, it has been in force since 1 September 2026, replacing GB/T 17980.9-2000.

This document describes the method for field plot efficacy trials of insecticides for controlling aphids on fruit trees. This document applies to the use of insecticides to control wingless aphids on trees, shrubs, and vines, such as the peach aphid (Myzuspersicae) and the pear aphid. Field efficacy trials for tree aphids should be conducted in accordance with this procedure.

4 Test conditions

4.1 Test subjects and crops The experimental subject was aphids. The species of aphids were recorded. The experimental crops include trees, shrubs, and vine-like fruit trees, preferably the locally cultivated varieties. Record the crop and variety names.

4.2 Environmental Conditions The experimental site should be a representative orchard with moderate to severe aphid infestation. The crop variety and cultivation conditions (soil) of all experimental plots should be consistent. The type, fertilizer and water, tree age, and spacing between trees 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 nozzle diameter, etc.

6.3 Application time and frequency Conduct the experiment according to the test requirements and label instructions. It is advisable to apply the pesticide during the fruit tree's shoot emergence period and at the initial stage of wingless aphid infestation. Record the number of applications and the date of each application. The growing season and crop growth period.

6.4 Dosage Administer the medication according to the test requirements and the dosage specified on the label. Record the dosage of the active ingredient, usually expressed in mg/kg (milligrams per kilogram). For use When spraying, record both the dilution ratio and the amount of pesticide solution used per hectare, expressed in L/hm2 (liters per hectare). Ensure adequate ventilation during application. Ensure accurate dosage and uniform distribution of medication. 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. Degree. Record accurate information about the application of this type of medication (such as 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 Insect population decline rate The insect population decline 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 significant differences were determined by applying appropriate biostatistical methods (such as Duncan's new multiple range method or other multiple comparison methods). Compare the sexes 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 17980.9-2026. Guidelines for Field Efficacy Trials of Pesticides Part 9. Insecticides for the Control of Aphids on Fruit Trees ICS

17 National Standards of the People's Republic of China Replaces GB/T 17980.9-2000 Guidelines for Pesticide Field Efficacy Trials Part