T/NAASS 102-2024 Technical Specification for Field Efficacy Test of Fungicides in Preventing and Treating White Powdery Mildew on Wolfberry Plants

Scope

Scope: This document specifies the methods and technical requirements for field efficacy trials of fungicides in preventing and controlling white powder disease in wolfberry. This document is applicable to field efficacy trials of fungicides in preventing and controlling white powder disease in wolfberry. Main technical content: 3. Terminology and definitions: There are no terms or definitions that need to be defined in this document. 4. Test objects: White powder disease in wolfberry: Arthrocladiella mougeotii (Lév.) Vassilkov, a species of the Arthrocladiella genus in the Powdery Mildew family. The symptoms of the disease are described in Appendix A. 5. Selection of test sites: Wolfberry gardens with frequent occurrence of white powder disease and moderate or severe damage should be selected. The cultivation conditions (such as soil type, fertilization, planting spacing, etc.) and tree ages at each test site should be consistent. Field management should follow local conventional practices. 6. Test agents: 6.1 Test agents should be labeled with their common name (Chinese name) or code, trade name, dosage form, content, manufacturer, and treatment dose (effective ingredient dosage in mg/kg or effective concentration in mg/L). At least three doses or doses set according to requirements should be used for test agents. 6.2 Control agents should be selected from registered products with proven good efficacy in practice, and their types and modes of action should be similar to those of the test agents. They should be used at local conventional doses. If the test agents are single agents, at least one locally common single agent should be used as the control agent; if the test agents are compound agents, each single agent in the compound should be used as the control agent, and another locally common agent should also be used as the control agent. 6.3 Blank controls: No agent treatment (treated with an equal amount of water) should be used as the blank control. 7. Test de

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