T/QHNX 035-2023 Active Group standards

T/QHNX 035-2023 Pest forecasting and monitoring technical specifications for late blight of potatoes

Publish Date: 2023-10-19 Implement Date: 2023-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/QHNX 035-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Agriculture, forestry

ICS Name: Plant cultivation

Publish Date: 2023-10-19

Implement Date: 2023-11-01

Scope

Scope: This document specifies the terms and definitions, monitoring equipment and systems, early warning and forecasting, early warning information release, and data collection for potato late blight early warning and forecasting technology. This document is applicable to potato late blight early warning and forecasting technology. Main technical content: 5.1 One potato late blight monitor shall be set up per 2,000 mu of monitoring area. 5.2 Basic information includes the potato cultivar, emergence start date, and expected harvest date in the monitoring area. 5.3 Early warning basic information includes the mobile phone numbers of users such as agricultural department leaders, agricultural technicians, and potato growers in the monitoring area. 5.4 Acquisition of early warning information: Starting from the potato's budding stage, staff shall log in to the "Potato Late Blight Early Warning and Information Release System" once every 2 days to view the "infection curve" in the "Monitoring" module (see Appendix A). Once the first infection curve of the third generation is generated in the monitoring point, staff shall pay close attention and monitor the system daily while conducting field surveys until the potato plants turn yellow and wither. 5.5 Forecasting of occurrence period 5.5.4 Forecasting of appropriate control period: Based on the local cultivar resistance, climate characteristics, and pathogen structure, combined with weather conditions and future 10-day weather forecasts, the infection wet period typically spreads to the entire field within 10-14 days. From the discovery of the first diseased plant to a diseased plant rate of 0.3%-5%, with a diseased field rate below 10%, this is the appropriate control period for protective fungicides. When the diseased plant rate of potato late blight exceeds 15%, or when the system indicates a trend of above-moderate occurrence, this is the appropriate control period for therapeutic fungicides.