Cyromazine 
Action/Use:
- Insect Growth Regulator
Use:
Armor* for Sciarid flies in mushrooms. Citation* for leafminers in chrysanthemums. Trigard* for dipterous leafminers in vegetable crops and ornamentals. Trigard* OMC seed treatment for onion maggots in bulb onions. Hokoex* for fly control in animal husbandry.
Identification
Common Name(s): Cyromazine (ANSI, ISO, BSI)
Description
Mode of Action / Resistance Management
Mode of Action: Moulting disruptor, Dipteran
Action Group: IRAC Group 17
Registration
Outside U.S.A.: Hokoex* in EU, Switzerland, Australia, UAE, Russian Federation.
Environmental Guidelines
Hazards: Fish: LC50 >89.7 mg/l (96 h) (bluegill); >87.9 mg/l (rainbow trout); >92.4 mg/l (catfish). Bird: Oral LD50 >2510 mg/kg (mallard); 1785 mg/kg (quail); >6000 mg/kg (Peking duck). Dietary >5620 (mallard, quail)
Water Solubility: 1.1% at 20°C (pH 7.5)
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 3387 mg/kg. Dermal >3100 mg/kg
Handling/storage Cautions: Store in well-ventilated, secure area out of reach of children and animals
Protective Clothing: Long-sleeved shirt and long pants. Protective eyewear. Chemical-resistant apron when cleaning equipment, mixing, or loading.
Suppliers and Branded Products
From:
Agro-Care Chemical Industry Group Limited (Leafguard*)
Hokochemie GmbH (HOKO* spray-on, Hokoex*)
Point Americas Inc. (Cyromax*)
Syngenta (Armor*, Citation*, Neporex*, Patron*, Trigard*, Trigard* OMC)
Wangs Crop-Science Co., Ltd. (Cycle*)
Formulators' Trade Names:
Hektas Ticaret T.A.S. (Cyrogard*)
Insecticidas Internacionales, C.A. (Premier*)
SAFA TARIM A.S. (Trimazine*)
B.V. Industrie- & Handelsonderneming Simonis (Wopro-cyromazine*)
United Phosphorus Ltd. (Cliper*)
Willowood Ltd. (Citromaz*)
Premix Products:
+ Abamectin
- Locking* — Wangs Crop-Science Co., Ltd.
Discontinued Names:
Cyrodex*
Larvadex*

