Precise Dilution and Application Guidelines for Diethyl Aminoethyl Hexanoate DA-6 98% TC

DA-6 98% TC possesses extremely high activity; it must never be sprayed directly. Strict adherence to dilution protocols is essential to ensure safety and efficacy without causing phytotoxicity.

Precise Dilution Method for DA-6 98% TC
Standard Dosage:
Mix 1 gram of DA-6 98% TC with 50–60 catties of water. This results in a final concentration of approximately 15–20 mg/L, which is safe and effective for the vast majority of crops.
Do not simply convert dosages based on commercial 8% formulations; doing so risks excessive concentration and phytotoxicity.

Two-Step Dilution Process:
First, dissolve the DA-6 98% TC in 50–100 g of ethanol or high-proof liquor, stirring thoroughly until completely dissolved to create a stock solution.
Then, slowly pour the stock solution into the required volume of water while stirring continuously to prevent localized areas of excessive concentration.

Prepare and Use Immediately:
The solution must be used on the day it is prepared; prolonged storage leads to the gradual breakdown of the active ingredient and reduced efficacy. Crop Type | Application Method | Recommended Concentration | Application Timing

Grain crops (e.g., wheat, rice):
Method: Foliar spray / Seed soaking
Concentration: 10–15 mg/L
Timing: Spray once each at the tillering, booting, and grain-filling stages; soak seeds for 24 hours before sowing.

Solanaceous and cucurbit crops (e.g., tomato, pepper, cucumber):
Method: Foliar spray
Concentration: 8–15 mg/L
Timing: Spray once each at the seedling stage, early flowering stage, and post-fruit-set stage.

Leafy vegetables (e.g., Chinese cabbage, lettuce):
Method: Foliar spray
Concentration: 10–15 mg/L
Timing: Spray once each at the seedling stage and the heading/rapid growth stage (with a 7–10 day interval).

Root and tuber crops (e.g., potato, ginger):
Method: Foliar spray / Fertigation (soil drenching)
Concentration: 10–20 mg/L
Timing: Spray once each at the seedling stage and tuber expansion stage; for fertigation, use 1–2 g of active ingredient per mu.

Fruit trees (e.g., citrus, grape):
Method: Foliar spray
Concentration: 10–15 mg/L
Timing: Spray once each at the early flowering stage, post-fruit-set stage, and fruit expansion stage.

Core Operational Guidelines
Spraying Time: Apply on sunny days before 10:00 AM or after 4:00 PM. Avoid midday heat (temperatures above 30°C) and intense sunlight to prevent rapid evaporation, which could cause a sudden spike in concentration and leaf burn.

Synergistic Mixing:Can be directly mixed with neutral or weakly acidic water-soluble fertilizers, insecticides, and fungicides. This enhances fertilizer and pesticide efficacy by 10%–30% while reducing disease incidence.

Safety Interval:Maximum of 3 applications per crop season, with an interval of at least 7 days between applications. Cease use 15 days before harvesting leafy vegetables and 20 days before harvesting melons/fruits; fully compliant with national safety standards for pesticide residues.

Important Warnings
Do not mix with strongly alkaline pesticides (such as Bordeaux mixture or lime sulfur) or alkaline fertilizers; DA-6decomposes rapidly and loses its efficacy in alkaline environments.
Do not arbitrarily increase the dosage; concentrations exceeding 30 mg/L will inhibit crop growth, causing leaf curling and premature plant senescence—completely defeating the purpose of promoting growth and increasing yields.
Do not use near apiaries or during the crop's peak flowering stage; this prevents bees from coming into contact with the solution and suffering fatal poisoning, thereby protecting pollinating insect populations.
Do not spray within 12 hours of strong winds or rainfall; rain can wash away the solution, rendering the treatment ineffective.