ULD® BP-100 Contact Insecticide II - Animal Health

MGK · Piperonyl butoxide 5%; Pyrethrins 1% · EPA Reg 1021-2838 · INSECTICIDE Document last checked 2025-09-29

About this product

Active ingredient Piperonyl butoxide 5%; Pyrethrins 1%

Manufacturer MGK

Category INSECTICIDE

Full details for ULD® BP-100 Contact Insecticide II - Animal Health

Source product label ↗ Open the catalog source label while the local copy is reviewed. Verify the product name, EPA registration number, and revision before use. Source safety data sheet ↗ Open the catalog source SDS while the local copy is reviewed. Verify the exact product and revision before relying on it. EPA registration data Reg. 1021-2838 — 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. 1021-2838 →

This product is an insecticidal spray used to control flies, gnats, ants, bed bugs, beetles, earwigs, cockroaches, silverfish, spiders, stable flies, and blood-sucking lice. It can be applied as a space spray using a mechanical aerosol generator, via direct spray or void treatments into cracks and crevices, or as a handtank/pinstream application. For livestock, such as beef cattle, dairy cattle, and horses, it is applied as a light mist or sufficient spray to wet the hair.

Pests covered (137)

Flies, GnatsAnts, Bed Bugs, Beetles, Earwigs, Cockroaches, Silverfish, Spidershorn flies, house flies and gnatsstable fliesblood sucking liceMOTHSCRAWLING INSECTSFLYING INSECTSPILLBUGSSOWBUGSCENTIPEDESMILLIPEDESSCORPIONSSPIDERSMITESTICKSGRAIN MITECHEESE MITESPINOSE EAR TICKDERMESTID BEETLESCARPET BEETLEBLACK CARPET BEETLECEREAL LEAF BEETLEFOREIGN GRAIN BEETLESQUARENECKED GRAIN BEETLERUSTY GRAIN BEETLEFLAT GRAIN BEETLEMERCHANT GRAIN BEETLESAWTOOTHED GRAIN BEETLEWEEVILSBROAD NOSED GRAIN WEEVILDARKLING BEETLESLESSER MEALWORMBLACK FUNGUS BEETLESTWO BANDED FUNGUS BEETLEBROAD HORNED FLOUR BEETLESLENDER HORNED FLOUR BEETLELONGHEADED FLOUR BEETLESMALL EYED FLOUR BEETLEDEPRESSED FLOUR BEETLEREDHORNED GRAIN BEETLEYELLOW MEALWORMDARK MEALWORMAMERICAN BLACK FLOUR BEETLERED FLOUR BEETLECONFUSED FLOUR BEETLECADELLEFLIESGNATSVEGETABLE LEAFMINERCHRYSANTHEMUM LEAFMINERBLOW FLIESBOTTLEFLYMOSQUITOESVINEGAR FLYSHEEPTICKHORN FLYFACE FLYHOUSE FLYSTABLE FLYFUNGUS GNATSMUSHROOM FLIESSKIPPER FLIESCHEESE SKIPPERBLACK FLIESHORSE FLIESDEER FLIESFRUIT FLIESEARWIGSMEALYBUGSBEESWASPSANTSFIRE ANTHORNETSYELLOWJACKETSCABBAGEWORMSWORMSHIDE BEETLEKHAPRA BEETLETROGODERMA BEETLESMEXICAN GRAIN BEETLEHAIRY FUNGUS BEETLECORN SAP BEETLEDRIEDFRUIT BEETLESPIDER BEETLESBROWN SPIDER BEETLEWHITE MARKED SPIDER BEETLEHAIRY SPIDER BEETLEBED BUGBOXELDER BUGWHITEFLIESAPHIDSMEDITERRANEAN FLOUR MOTHALMOND MOTHRICE MOTHCHOCOLATE MOTHTOBACCO MOTHCOCOA BEAN MOTHINDIAN MEAL MOTHCLOTHES MOTHSEUROPEAN GRAIN MOTHBOOKLOUSEFLEASTHRIPSFIREBRATSILVERFISHBEETLESMURMIDIUS BEETLEFUNGUS BEETLESCIGARETTE BEETLEDRUGSTORE BEETLECATORAMA BEETLECOFFEE BEAN WEEVILLARGER GRAIN BORERLESSER GRAIN BORERGRAIN BORERSBEAN WEEVILGROUND BEETLESPINK SCAVENGER CATERPILLARANGOUMOIS GRAIN MOTHCABBAGE LOOPERGRANARY WEEVILRICE WEEVILMAIZE WEEVILGRAIN WEEVILSGRASSHOPPERSGERMAN COCKROACHCRICKETSBROWN DOG TICKRED SPIDER MITESSPIDER MITESCLOVER MITECHIGGERS (REDBUGS)CATTLE LICELICEBLOODSUCKING LICE

Areas treatable (106)

Space SprayDirect Spray or Void TreatmentsHandtank or Pinstream ApplicationGround Fogging Application Using Handheld EquipmentDomestic Animals/LivestockTOBACCO WAREHOUSESTOBACCO PROCESSING PLANTSBEVERAGE PLANTSGRAIN MILLSRICE MILLSDRIED FRUIT PROCESSING PLANTSMILK ROOM (ENCLOSED PREMISE TREATMENT)GRANARIES (EMPTY) (NON-RESIDUAL SPACE TREATMENT)DAIRY BARNS (ENCLOSED PREMISE TREATMENT)DAIRY CATTLE (ANIMAL TREATMENT)NURSING HOMESUNCULTIVATED NONAGRICULTURAL AREASAERIAL APPLICATION (FIXED WING)AERIAL APPLICATION (ROTARY AIRCRAFT)ULTRA LOW VOLUME (ULV) APPLICATIONSTORAGE AREASGARBAGE ROOMSWAREHOUSESHORSE BARNS (ENCLOSED PREMISE TREATMENT)HORSE STABLES (ENCLOSED PREMISE TREATMENT)FRUIT PACKING SHEDS (INDOOR INEDIBLE)MEAT PACK. PLANT (INED.)(INDR.)RABBIT PROCESS PLANT PREMISESPOULTRY PROCESSING PLANTS (INDOOR INEDIBLE)SEWERSGARBAGE CANSDUMPS (GARBAGE/REFUSE)GARBAGE COMPACTORSRIGHTS-OF-WAY (UTILITY)BUSES (NONFEED/NONFOOD)SHIP HOLDSSHIPSRAILROAD BOXCARSTRUCKSRECREATIONAL VEHICLESWINERIESFLOUR/GRAIN ELEVATORSFLOUR MILLS (INDOOR INEDIBLE)EGG PROCESSING PLANTSLOCKER ROOMSFACTORIESOFFICE BUILDINGSTHEATERSSTORESCOMMERCIAL/INSTITUTIONAL/INDUSTRIAL BUILDINGS (WALL VOIDS)CAMPGROUNDSDRIVE-IN THEATERSPARKSLIVESTOCK CORRALS (ENCLOSED PREMISE TREATMENT)FOOD PROCESSING PLANTS (INDOOR EDIBLE)BAKERIESBOTTLING PLANTSCANNERIESDAIRIESBARNS (INDOOR)CABINS (INDOOR)CLOSETSDOMESTIC DWELLINGS (INDOOR)GARAGESUTILITY ROOMSHOMES (INDOOR)DOMESTIC DWELLINGS (INDOOR) (WALL VOIDS)HOTELS/MOTELS/TOURIST COURTS (INDOOR)MOBILE HOMES (INDOOR)DOMESTIC DWELLINGS (OUTDOOR)ZOOSHOG HOUSES (ENCLOSED PREMISE TREATMENT)RECREATION AREASPLAYGROUNDSEATING ESTABLISHMENTS (INDOOR INEDIBLE)RESEARCH ANIMAL QUARTERS (ENCLOSED PREMISE TREATMENT)HOTELS/MOTELS/TOURIST COURTS (OUTDOOR)BOATS (WOOD)PUBLIC BUILDINGS (INDOOR INEDIBLE)COMMERCIAL/INSTITUTIONAL/INDUSTRIAL AREAS (OUTDOOR INEDIBLE)FOOD HANDLING ESTABLISHMENTS (INDOOR INEDIBLE)FOOD MARKETING/STORAGE/DISTRIBUTION FACILITIES (INDOOR INEDIBLE)FOOD MARKETING/STORAGE/DISTRIBUTION FACILITIES (OUTDOOR INEDIBLE)SUPERMARKETS (INDOOR INEDIBLE)ANIMAL LIVING QUARTERSHORSES (ANIMAL TREATMENT)BEEF CATTLE (ANIMAL TREATMENT)OFFICES (INDOOR INEDIBLE)COMMERCIAL/INSTITUTIONAL/INDUSTRIAL BUILDINGS (INDOOR INEDIBLE)JAILS (INDOOR INEDIBLE)RABBIT HOUSES (ENCLOSED PREMISE TREATMENT)ORNAMENTAL TURF (GOLF COURSES)CATTLE BARNS (ENCLOSED PREMISE TREATMENT)EATING ESTABLISHMENTS (OUTDOOR INEDIBLE)DRIVE-IN RESTAURANTS (OUTDOOR INEDIBLE)LIVESTOCK BARNS (ENCLOSED PREMISE TREATMENT)LIVESTOCK STABLES (ENCLOSED PREMISE TREATMENT)LIVESTOCK LOAFING SHEDS (ENCLOSED PREMISE TREATMENT)LIVESTOCK CORRALS (OPEN PREMISE TREATMENT)LIVESTOCK FEEDLOTSTRANSPORTATION VEHICLES (NONFOOD/NONFEED)FOOD PROCESSING PLANTANIMAL QUARTERS (ENCLOSED PREMISE TREATMENT)PET KENNELS (OPEN PREMISE TREATMENT)TRUCK TRAILERS (FEED/FOOD-EMPTY) (NON-RESIDUAL SPACE TREATMENT)MANURE PILE (OUTDOOR)

How to treat each type of area 9

Space Spray

Target pest	Location	Rate	Unit	Dilution	Label notes
Flies, Gnats	Indoor	approx. 1	fl. oz. / 1,000 cu. ft.	undiluted	Use full strength or dilute as desired; apply using a mechanical aerosol generator (no droplets > 50 microns in diameter and 80% < 30 microns). In commercial operations, subtract the space occupied by stored product or equipment from the cubic footage. Do not apply as a space spray in residences.
Flies, Gnats	Indoor	1 - 2	fl. oz. / 1,000 cu. ft.	diluted	Use full strength or dilute as desired; apply using a mechanical aerosol generator (no droplets > 50 microns in diameter and 80% < 30 microns). In commercial operations, subtract the space occupied by stored product or equipment from the cubic footage. Do not apply as a space spray in residences.
Ants, Bed Bugs, Beetles, Earwigs, Cockroaches, Silverfish, Spiders	Indoor	approx. 1	fl. oz. / 1,000 cu. ft.	full strength	Apply as a space spray using a mechanical aerosol generator (no droplets >50 microns in diameter and 80% <30 microns). In commercial operations, subtract the space occupied by stored product or equipment from the cubic footage. Do not apply as a space spray in residences.

Direct Spray or Void Treatments

Target pest	Location	Rate	Dilution	Label notes
Ants, Bed Bugs, Beetles, Earwigs, Cockroaches, Silverfish, Spiders	Indoor	1 second of product for every 3 cu. ft. of void area	full strength	Place the tip of the applicator at or into the crack or crevice or opening to the void. For Direct Spray, apply from a distance of 18 - 24” away from the surface; amount applied is not to exceed 0.33 fl. oz. / 1,000 cu. ft. For Bed Bugs: Do not direct this product at mattresses.

Handtank or Pinstream Application

Target pest	Location	Rate	Unit	Dilution	Label notes
Ants, Bed Bugs, Beetles, Earwigs, Cockroaches, Silverfish, Spiders	Indoor	not to exceed 0.33	fl. oz. / 2 sq. ft.	full strength	Direct application into cracks and crevices. For spot treatments, use a coarse, low-pressure spray. Limit individual spot treatments to an area no larger than 20% of the surface area. Any individual spot treatment shall not exceed 2 sq. ft.

Ground Fogging Application Using Handheld Equipment

Target pest	Location	Rate	Unit	Label notes
Flies, Gnats	Outdoor	4	fl. oz. / acre	Use in open areas near buildings and in campgrounds. When using ULV equipment, allow spray drift to penetrate dense foliage.

Domestic Animals/Livestock

Target pest	Location	Rate	Unit	Label notes
horn flies, house flies and gnats	Both		light mist sufficient to wet the tips of the hair	Use to protect beef cattle, dairy cattle and horses.
stable flies	Both	2	fl. oz. / adult animal	To kill stable flies on beef cattle, dairy cattle and horses, apply sufficient to wet the hair but not to soak the hide.
blood sucking lice	Both		thoroughly wet the hair	To kill the motile stages of blood sucking lice on beef and dairy cattle, apply the spray to thoroughly wet the hair.

Mixing instructions 3

For pests	Location	Amount	Per	Finished strength
Flies, Gnats	Indoor	1 Part	1 Part Oil	0.50% Pyrethrin
Flies, Gnats	Indoor	3 Parts	7 Parts Oil	0.30% Pyrethrin
Flies, Gnats	Indoor	3 Parts	17 Parts Oil	0.15% Pyrethrin

Worker safety

Re-entry interval (REI) Keep area closed for at least 1 hour.

Timing & weather

Use preferably at a time when temperature is cool (≤ 75°F) and the wind velocity is approx. ≤ 5 mph.

Use restrictions 4

Do not remain in treated areas after application.
Do not apply as a space spray in residences.
Do not direct this product at mattresses.
ensure product will not stain surface or leave an unacceptable residue.