MERUS 3.0

CLARKE MOSQUITO CONTROL PRODUCTS, INC. · Pyrethrins 5% · EPA Reg 8329-108 · insecticide Document last checked 2022-06-30

About this product

Active ingredient Pyrethrins 5%

Manufacturer CLARKE MOSQUITO CONTROL PRODUCTS, INC.

Category insecticide

Full details for MERUS 3.0

EPA registration data Reg. 8329-108 — registry reference, signal word and status.

Applicator discussion

Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.

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According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 8329-108 →

Merus 3.0 is a pyrethrins formulation used to control mosquitoes, including Aedes taeniorhynchus and other difficult to control species. It is applied as an undiluted spray or a 2.5% pyrethrins dilution in both outdoor and indoor locations, such as utility tunnels, parking decks, and warehouses. Application methods include use of handheld, truck-mounted, or portable backpack ULV equipment, as well as fixed wing or rotary aircraft for aerial applications.

Pests covered (4)

MosquitoesAedes taeniorhynchus or other difficult to control speciesresting or flying adult mosquitoesMOSQUITOES (ADULT)

Areas treatable (17)

urban and industrial areas such as utility tunnels, pipe chases, underground basements, underground passages, parking decks, open parking garages, abandoned warehouses, crawl spaces, uninhabited buildings, rail yards, waste yards, junkyards, tire dumps, and other areas where adult mosquitoes might be foundAGRICULTURAL PREMISES (OUTDOOR)CITRUS (FOLIAR TREATMENT)AERIAL APPLICATION (FIXED WING)ULTRA LOW VOLUME (ULV) APPLICATIONRAILYARDS (FOLIAR TREATMENT)PASTURES (FOLIAR TREATMENT)INDUSTRIAL AREAS (OUTDOOR) (FOLIAR TREATMENT)PARKING AREAS (FOLIAR TREATMENT)BASEMENTSSWAMPS (FOLIAR TREATMENT)RECREATIONAL AREAS (FOLIAR TREATMENT)COMMERCIAL/INSTITUTIONAL/INDUSTRIAL BUILDINGS (OUTDOOR INEDIBLE)ORNAMENTAL TURF (GOLF COURSES) (FOLIAR TREATMENT)OUTDOORSWOODLAND AREAS (FOLIAR TREATMENT)RESIDENTIAL AREAS (FOLIAR TREATMENT)

How to treat each type of area 6

Target pest	Location	Rate	Unit	Dilution	Label notes
Mosquitoes	Outdoor	3.4 to 5.3 fluid ounces per minute	fl. oz./minute	undiluted	at an average vehicle speed of 10 MPH using a swath width of 300 feet; equivalent to 0.0016 to 0.0025 lb a.i./acre. Use higher rate in heavy vegetation or when pest population numbers are high.
Aedes taeniorhynchus or other difficult to control species	Outdoor	up to 2.81 fl.oz. (0.008 lb a.i.)/acre	fl. oz./acre	undiluted
Mosquitoes	Outdoor	0.56 to 0.88 fl.oz. of the undiluted spray per acre	fl. oz./acre	undiluted	using non-thermal, portable, motorized backpack equipment adjusted to deliver ULV particles of less than 100 microns VMD. 50 ft (15.2 m) swath while walking at a speed of 2 MPH (3.2 KPH). Do NOT use portable backpack equipment for application in enclosed spaces.
Mosquitoes	Outdoor	0.56 to 0.88 fluid ounces of undiluted MERUS® 3.0 per acre	fl. oz./acre	undiluted	AERIAL APPLICATION: Apply using nozzle height of no less than 100 feet for fixed wing aircraft or 75 feet for rotary wing aircraft above the ground or canopy, unless specifically approved by the state or tribe based on public health needs. Apply by suitable fixed wing or rotary aircraft equipped with nozzles capable of producing a non-thermal (cold fog) aerosol spray cloud with appropriately sized droplets.
Aedes taeniorhynchus or other difficult to control species	Outdoor	up to 2.81 fl.oz. MERUS® 3.0 (0.008 lb a.i.)/acre/day	fl. oz./acre/day	diluted or undiluted	AERIAL APPLICATION

urban and industrial areas such as utility tunnels, pipe chases, underground basements, underground passages, parking decks, open parking garages, abandoned warehouses, crawl spaces, uninhabited buildings, rail yards, waste yards, junkyards, tire dumps, and other areas where adult mosquitoes might be found

Target pest	Location	Rate	Unit	Dilution	Label notes
resting or flying adult mosquitoes	Both	up to but not exceeding 0.0025 lb a.i./acre/day (0.88 fluid ounces of undiluted spray/acre/day)	lb a.i./acre/day	undiluted	Apply using handheld or truck-mounted ULV equipment, or other spray equipment suitable for this application. Do NOT use hand-held equipment for this type of application in enclosed spaces.

Mixing instructions 1

For pests	Amount	Per	Finished strength	Label notes
mosquito control	1 part	concentrate	2.5% pyrethrins dilution (1 to 1 dilution ratio)	Rates to use a 2.5% pyrethrins dilution (1 to 1 dilution ratio) for mosquito control

Timing & weather

For best results, apply when mosquitoes are most active and meteorological conditions are conducive to keeping the spray cloud close to the ground.
Application in calm air conditions is to be avoided.
Apply only when ground wind speed is greater than or equal to 1 MPH.
All types of applications should be conducted at temperatures above 50°F.

Use restrictions 3

Do NOT use hand-held equipment for this type of application in enclosed spaces.
Do NOT use portable backpack equipment for application in enclosed spaces.
Do not contaminate water, food or feed by storage or disposal.