Trichlorphon solution 30%

Ingredient: Trichlorphon solution 30%
Indication
Dewormers and Insecticides [Sinergasilus (Chinese copepod), Lernaea (anchor worm), Paraergasilus 

(ergasilid copepod), fish lice (Argulus), Gyrodactylus (gyrodactylid monogenean), Dactylogyrus

(dactylogyrid monogenean), and nematodes]

Appearance: light yellow, clear liquid.

Clinical Test Data

Most test data focuses on parasite control efficacy and species-specific toxicity (critical for avoiding fish mortality), as summarized below:

Efficacy against common parasites:

In trials on freshwater fish (e.g., grass carp, silver carp), a 0.3 mg/L bath with 30% Trichlorphon Solution achieved >90% mortality of Argulus japonicus (fish lice) within 24 hours, with no recurrence observed in 7 days (source: Aquaculture Research Trials, 2018).

For leech infestations in tilapia ponds, a single application of 0.4 mg/L reduced leech populations by 95% within 48 hours, and did not affect fish feeding behavior or growth over a 30-day monitoring period (source: Journal of Aquatic Animal Health, 2020).

Toxicity differences across species:

Low toxicity species: Catfish, crucian carp tolerate doses up to 0.6 mg/L without mortality.

Highly sensitive species: Trout, salmon, and some ornamental fish (e.g., goldfish) show mortality at doses >0.2 mg/L—these species require dose adjustments or alternative drugs (source: FAO Aquaculture Pest Management Guidelines).

Dosage

Dosages are calculated based on actual pond water volume (not surface area) to avoid under/over-dosing, and application must follow these steps:

Notes

Do not use in water with pH >8.5—high pH converts trichlorphon to more toxic dichlorvos, increasing fish mortality.

Wait 7–10 days before reapplication (if needed) to avoid toxin accumulation.

Withdrawal Period

Allow at least 14 days between the last application and fish harvest to meet food safety standards.

Storage: Keep in a dry and cool place not exceeding 30℃ and avoid light.

Packing: 1L/bottle; 25kg/drum