MetaLarv® XRP Mosquito Growth Regulator is a biorational, extended release pouch for pre-hatch & standing water control of mosquito larvae in catch basins & drainage systems. It features 4.25% (S)-methoprene — a juvenile hormone analog of mosquitoes that prevents the emergence of adult mosquitoes and utilizes Valent BioSciences’ proprietary Triple Release Technology™.
Utilizing Valent BioSciences’ Triple Release Technology, MetaLarv XRP provides an initial flash of (S)-methoprene for immediate control of mosquitoes — and the rate of flash is not dependent on water temperature. The second release occurs in standing water and unlike briquet formulations, initial floating of XRP ensures product does not immediately get propelled into catch basin sludge upon application. The third release ensures multiple point-source coverage for consistent control, providing public health professionals on average 90 – 100 days of residual control in catch basins under typical environmental conditions.
Suggested use rate for “closed” habitats such as catch basins, storm drains, and similar habitats is one (1) MetaLarv XRP. Re-apply as needed.
Suggested use rate for “open” habitats is one (1) MetaLarv XRP for 100 square feet of treatment area. Re-apply as needed.
MetaLarv XRP is an extended release water-soluble pouch containing 18 grams of MetaLarv® S-PT. The formulation is ideal for treatment of catch basins and other breeding sites for mosquitoes where placement applications provide value:
|Biorational mosquito larvicide||Not harmful to non-target populations|
|Triple Release Technology™ – (1) immediate, (2) delayed and (3) sustained active ingredient release||
|90-100 days of residual control in catch basins||
|Non-dusty, non-charcoal UV protectant formulation||
|Easy to apply and initially floats on water surface||
|Initial surface area of XRP is ~ 5 times larger than traditional briquet formulations. After exposed to water, surface area increases exponentially*||Provides multiple point sources in a catch basin (vs. one point source for briquets) for CONSISTENT, residual control, application over application|
*Calculations based on comparison to standard (S)-methoprene XR Briquet products
MetaLarv S-PT is a biorational pre-hatch insecticide for control of mosquito larvae in floodwater areas. It features the active ingredient (S)-methoprene — a juvenile hormone analog of mosquitoes that prevents the emergence of adult mosquitoes.
MetaLarv S-PT is a non-dusty, spherical pellet formulation that provides effective coverage at low rates and delivers consistent, predictable flight paths in aerial applications.
With its exclusive Triple Release TechnologyTM, MetaLarv S-PT provides an initial flash of (S)-methoprene for immediate control of mosquitoes — and the rate of flash is not dependent on water temperature. The second release takes place when the floodwaters rise, providing sustained control. The third release remains effective after the waters recede, ready to release (S)-methoprene during the next flooding cycle.
Suggested Rate Range:
2.5–10 lbs/acre (2.8–11.2 kg/ha)
Use lower application rates when water is shallow, vegetation and/or pollution are minimal, and mosquito populations are low. Use higher rates when water is deep (>2 ft/0.61 m), vegetation, pollution, and/or organic debris or water flow are high, and mosquito populations are high. Application of MetaLarv S-PT to sites subject to high organic pollution and water flow or exchange will diminish the product’s effectiveness.
- Effective emergence inhibition of mosquitoes in floodwater habitats
- Spherical pellet formulation
- Triple Release Technology™
- Non-dusty formulation
- Non-charcoal UV protectant
- Greater application flexibility
- Improved coverage at low rates
- Greater aerial swath in tests conducted
- Can be applied up to 28 days prior to flood
- 30–42 days residual in floodwater habitats
- Remains effective after flood/dry-down/re-flood event
- Less respirable and particulate dust
Treat on basis of surface area of potential mosquito breeding sites by placing one (1) MetaLarv XRP for 100 square feet of treatment area. Re-apply as needed (up to 42 days under typical environmental conditions).