Optigard® Termite Liquid is a liquid formulation for the control of subterranean termites, and a wide range of other insect pest species. Thiamethoxam, the active ingredient in Optigard® Termite Liquid is a second-generation neonicotinoid insecticide which belongs to the thianicontinyl subclass. Thiamethoxam demonstrates ingestion and contact activity against a wide range of economically important pests.
Mode of Action
Thiamethoxam targets the nicotinic acetylcholine receptors in the insect’s nervous system, resulting in death of the exposed insect. Neonicotinoids have a significantly different mode of action compared with other classes of insecticides (e.g. pyrethroids, phenylpyrazoles, pyrroles, etc.) commonly used for pest insect development. Thiamethoxam is non-repellent and can be transferred from exposed to unexposed insects that exhibit social behaviour, such as termites and ants.
Product Profile
- Non-repellent insecticide (treated zone)
- Low use rates (0.1% to 0.2%)
- Kills insects by contact and ingestion
- Non-volatile and non-staining
- Excellent efficacy against termites and wood-destroying insects
- Flexible use to control ants
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Patented AI
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Systemic action
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Suitable for pre-construction and post-construction
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HDB specified , EPA registered
Toxicological Profile
| Hazard Indicator | Species | Optigard Termite Liquid | 
| Oral LD50 | Rat | >5,000 mg/kg body weight (Practically Non-Toxic) | 
| Dermal LD50 | Rat | >5,050 mg/kg body weight (Practically Non-Toxic) | 
| Inhalation LC 50 (4h) | Rat | 2670 mg/m³ (Practically Non-Toxic) | 
| Eye Irritation | Rabbit | Minimally irritating | 
| Skin Irritation | Rabbit | Slightly irritating | 
| Skin Sensitization | Guinea pig | Not a sensitizing | 
 
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