FenvaStar EcoCap

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Average Rating

4 out of 5 stars Rating: 4.2

70 Reviews | 61 Q&A

Product Overview

FenvaStar EcoCap is a microencapsulated product containing Esfenvalerate (3.5%). Featuring the EcoCap technology FenvaStar EcoCap is made using a renewable vegetable oil instead of petroleum resulting in almost no odor and no VOCs. This enviromentally responsible pest control product will still quickly knockdown pests including ants, bedbugs, roaches, mosquitoes, stinkbugs, fleas, stinging insects, flies, stored product insects, and a variety of other plant and structural pests (see label for full details).

FenvaStar EcoCap is labeled for use both indoors and outdoors, in food and non-food areas, animal premises, turf, and structural uses (see label for full details). FenvaStar EcoCap demonstrates exceptional residual and knockdown activity even when exposed to sunshine and rain.

Features and Specs

Active Ingredient Esfenvalerate 3.5%
Target pests Ants (including fire ants), Aphids, Bedbugs, Beetles, Boxelder Bugs, Carpet Beetles, Carpenter Bees, Centipedes, Cockroaches, Crickets, Dog Ticks, Earwigs, Fleas, Millipedes, Mites, Pllbugs, Silverfish, Spiders, Springtails, Swarming Termites, Ticks and Waterbugs, Flying, Biting, Stinging, Livestock, Wood-Destroying and Plant Insects
* See label for complete listing
For use in Commercial & Residential Indoors & Outdoors: Homes, Schools, Warehouses, Office Buildings, Apartments, Hotels, Kennels, Livestock Housing, Food Processing Plants, Restaurants, Supermarkets, Food Manufacturing & Warehousing
* Lawns, Trees, Ornamental Landscaping, Recreational areas, Parks and Athletic Fields
* Barrier broadcast applications on siding
* Indoor flea treatments on carpet as well as pet resting areas
* See label for complete listing
Application * See label for complete application instructions
Pet safe Yes, when used as directed on label
Yield 1 - 2 oz. per gallon will treat 1,000 sq. ft.
Formulation Professional Product
CT (Restricted To Licensed Applicators Only)
Special Features LEED Tier 2 Insesticide
Shipping Weight 0.76 lbs
Manufacturer LG Life Science, LTD. (Mfg. Number: LGFC008)
EPA Registration 71532-28-91026


How FenvaStar EcoCap Works

FenvaStar EcoCap is a liquid insecticide concentrate with the active ingredient Esfenvalerate. Esfenvalerate is a synthetic pyrethroid, a man-made insecticide created to mimic the chemical properties of naturally occurring pyrethrins. FenvaStar EcoCap also has the advantage of microencapsulation, meaning the product is a concentrated suspension with millions of tiny capsules containing the active ingredient. When insects come into contact with the spray or residual left from applying FenvaStar EcoCap, they pick up the tiny capsules on the hairs on their legs and bodies, and the esfenvalerate attacks the central nervous system of the insects, causing paralysis and eventual death.

FenvaStar EcoCap Target Pests

Ants, aphids, Asian lady beetles, bedbugs, beetles, boxelder bugs, carpenter ants, centipedes, cockroaches, crickets, earwigs, firebrats, fleas, mealybugs, millipedes, mites, pillbugs, psocids, scales, silverfish, spiders, springtails, ticks, flying pests, biting and stinging pests, stored product pests, plant pests


Ants (including fire ants), aphids, asian lady beetles, bedbugs, bees, beetles, biting flies, blow flies, boxelder bugs, carpet beetles, centipedes, chiggers, clothes moths, cockroaches, crane flies, crickets, deer flies, deer ticks, dog ticks, earwigs, face flies, firebrats, fleas, fruit flies, fungus gnats, gnats, horn flies, houseflies, hornets, lice, mealy bugs, midges, millipedes, mites, mosquitoes, pillbugs, psocids, scales, scorpions, silverfish, small flying moths, spiders, springtails, swarming termites, ticks, wasps, waterbugs, whiteflies, yellow jackets; Stored Product Pests: Angoumois grain moths, ants, cadelles, cigarette beetles, confused flour beetles, dark mealworms, dried fruit beetles, drugstore beetles, flat grain beetles, fruit flies, grain mites, grain moths, granary weevils, indian meal moths, lesser grain borers, maize weevils, meal moth larvae, Mediterranean flour moths, merchant grain beetles, red flour beetles, rice weevils, rusty grain beetles, saw-toothed grain beetles, skippers, spider beetles, spider mites, square-necked grain beetles, tobacco moths, yellow mealworms; Livestock Premise Pests: Bedbugs, carrion beetles, chiggers, darkling beetles (lesser mealworm), deer flies, face flies, fleas, flies, hide beetles, horn flies, horse flies, lice, litter beetles, mites, mosquitoes, stable flies; Wood-Destroying Pests: Carpenter ants, carpenter bees, deathwatch beetles, furniture beetles, old house borers, powder post beetles, round-headed house borers, swarming termites; Plant Pests: Alfalfa caterpillars, artichoke plum moth, American plum borers, annual bluegrass weevils, aphids, apple maggots, armyworms, bagworms, balsam woolly adelgids, beet armyworms, billbugs, blueberry spanworms, cherry fruit flies, cherry fruitworms, chinch bugs, codling moths, cowpea curculios, cranberry fruitworms, cranberry weevils, cucumber beetles, cutworms, diamondback moths, elm leaf beetles, european pine sawflies, fall webworms, filbert worms, flea beetles, grasshoppers, green cloverworms, green fruitworms, gypsy moth caterpillars, hickory shuckworms, imported cabbageworms, Japanese beetles, lace bugs, leaf feeding caterpillars, leaf miners, leaf rollers, leaf tiers, leafhoppers, lesser appleworms, lesser peach tree borers, loopers, lygus bugs, Mexican bean beetles, mites, mole crickets, naval orangeworms, northern pine weevils, oriental fruit moths, painted lady caterpillars, pea weevils, peach tree borers, peach twig borers, pear psyllid, pear slugs, pecan leaf phylloxera, pecan nut casebearers, pecan spittlebugs, pecan stem phylloxera, pecan weevils, pepper weevils, periodical cicadas, pickelworms, pillbugs, pine chafers, pine coreid bugs, plant bugs, plum curculios, red pine sawflies, red-striped fireworms, red-headed pine sawflies, rindworms, salt marsh caterpillars, sap beetles, scales, sod webworms, sowbugs, spiders, spittlebugs, stink bugs, tarnished plant bugs, tent caterpillars, thrips, tobacco hornworms, tufted apple bud moths, velvet bean caterpillars, walnut husk flies, western bean cutworms, whiteflies

Target Uses of FenvaStar EcoCap

FenvaStar EcoCap is an excellent choice for general, broad-spectrum insect control as a perimeter barrier outdoors and crack and crevice or spot treatment indoors. FenvaStar EcoCap has low odor and no VOCs, making it ideal for more sensitive accounts and situations where multiple treatments may need to be made, such as for bedbugs. Microencapsulation makes FenvaStar EcoCap a great choice to treat flying pests such as mosquitoes or carpenter bees, or for use in areas exposed to direct sunlight. FenvaStar EcoCap is also labeled for use for many common livestock pests and plant pests. With its broad list of target pests and usage sites, FenvaStar EcoCap eliminates the need for multiple products for a variety of jobs.

ACTIVE INGREDIENT: Esfenvalerate 3.5%

FenvaStar EcoCap Application Instructions

Shake well before using. When mixing, add approximately half the required water to spray tank and then add appropriate amount of concentrate. Agitate and slowly add the remaining water. Agitate spray thoroughly before using and also occasionally during use to ensure dispersion. Use 1-2 ounces of concentrate per gallon of water and apply with a hand pump sprayer. Apply 2-second bursts of spray per square foot of area being treated. Avoid excessive application. Dampen surfaces but not to the point of saturation or run-off. Repeat applications as needed, but do not exceed more than one application every seven days (most applications; do not exceed more than one application every 14 days in food handling establishments).


* Always read the product label completely before use.

  • An 8 ounce bottle yields 4-8 gallons of finished solution.
  • One gallon (128 oz.) bottle yields 64-128 gallons of finished solution.

Standard Application Dilution rates / Mixing Ratios for FenvaStar EcoCap:

  • 1 fl. oz. (30mL)/gal. of water – 0.025% - general use, maintenance, prevention.
  • 2 fl. oz. (60mL)/gal. of water – 0.05% - heavy infestations, initial clean out; stinging insects.
  • 0.2-2.0 fl. oz./gal. of water or in sufficient water to cover 1,000 sq. ft. – broadcast or foliar spray of ornamental trees, landscapes, lawns, and turf.

1 gallon of finished solution typically covers 1,000 square feet. Higher volume applications may be used for outdoor treatments such as broadcast lawn treatments or foliar applications in mosquito breeding sites. See product label for complete instructions for outdoor applications.

FenvaStar EcoCap is for use in the following areas:

For control of insect, indoors and outdoors, in food and non-food areas such as, but not limited to: homes, schools, warehouses, office buildings, apartment buildings, theaters, hospitals, hotels, industrial buildings, motels, kennels; livestock housing such as barns, cow and calf pens and hutches, dairy barns and milk rooms, hog barns, horse barns, sheep barns, poultry houses, rabbit hutches; food processing plants; food service establishments including, but not limited to restaurants, meat processing plants, supermarkets and grocery stores, bakeries, food manufacturing and processing establishments, and food warehousing establishments; transportation equipment, truck trailers, railroad cars, warehouses. Also for use on backyards, lawns, trees, ornamental landscaping, recreational areas, parks and athletic fields.


Mix and spray according to Application Instructions above. For crawling pests indoors: Apply as a course, wet spray to surfaces where pests are normally found. Treat floors, baseboards, around doors and windows, in attics, crawl spaces, eaves, corners, closets, walls, utility pipes, storage areas, cracks and crevices. Treat underneath sinks, dishwashers, refrigerators, stoves, the underside of shelves, drawers, cabinets, areas behind pipes, and in all places where these insects shelter. Contact as many insects as possible with direct spray. Repeat applications as needed, but do not exceed more than one application every 7 days.

To control bedbugs: Thoroughly clean and sanitize mattresses and box springs. Treat mattress and box springs with an approved pesticide. Apply FenvaStar EcoCap as a spot treatment to potential harborage sites and migration paths, and crack and crevices, around baseboards, floorboards, headboards, and walls.


Mix and spray according to Application Instructions above. Treating exterior walls, foundations, and structures: To control infestations of listed pests, treat exterior surfaces of buildings, walls, window frames, around garbage cans, eaves, cracks and crevices, porches, decks, gazebos, patios, carports, garages, fence lines, and other areas where pests are active or may be hiding. To help prevent insect infestation of buildings, treat a 2-6 food band of soil or other substrate adjacent to buildings. Treat building foundation to a height of 2-3 feet. Treat exterior walls, eaves, cracks and crevices, and other areas where pests are active and may find entrance into the building. Alternate mixing directions are to use 4-8 fl. oz. of concentrate per 50 gallons of water.

Use lower rate range for turf pests that are commonly exposed and will be contacted by spray solution at the time of application. For pests that will not be contacted by spray solution at the time of application, use the upper rate range. Use 2 fl. oz. per 1,000 sq. ft. when treating mole crickets and chinch bugs.

For yellow jacket control, FenvaStar EcoCap can be mixed with baits in traps. Follow trap instructions for preparation of bait.

* See product label for complete outdoor application instructions.

FenvaStar EcoCap Features

  • Microencapsulation ensures long-lasting residual, even in sunshine and rain.
  • Almost no odor, and no VOCs (Volatile Organic Compounds).
  • Broad-spectrum labeling for many common pests and use in a large variety of locations.
  • Labeled for use in food handling establishments.
  • Rated as a LEED Tier 2 Pesticide.
  • Convenient tip-and-pour bottles accommodate easy measuring and mixing.
  • May be tank mixed with an IGR such as NyGuard IGR or other pesticides unless expressly prohibited by the label.
  • Simple dilution rates are easy to remember.

Extra Tips for Using FenvaStar EcoCap

  • Always shake well before mixing.
  • Store out of direct sunlight and extreme temperatures.
  • Only dilute with water.
  • Do not apply directly to pets. Keep pets and children out of treatment area until product has dried.
  • Do not exceed more than one application every 7 days.
  • Do not apply with hand held or truck mounted cold aerosol ULV sprayers and thermal fogging devices.
  • Lawn or turf grass should be mowed 1-2 days before spraying.

Compare to: Conquer Liquid Insecticide

Review Search   
Sort Reviews
  • 5 of 5 Stars

    A professional Review

    By M. on 12/13/2013

    Verified Purchase

    I worked in Commercial Pest control for many years. There are many good products on the market but I have chosen FenvaStar EcoCap as the product to treat my home. It's very flexible. For general maintenance I use 1 ounce per gallon. For the busier "bug season" I bump it to 2 ounces per gallon. It's encapsulated which means it's easier for the insect to get a lethal dose on him. It's so easy to treat your own home! Get a sprayer, gloves and eye protection and DO IT YOURSELF! Working for people like ORKIN pest control left a bad taste in my mouth for the pest control industry in general. They view customers as cattle with purses. Everything they use you can buy here and save a ton of money. This product works! It's in a small container so you'll be able to use it up before it goes bad. Read the label and DO IT YOURSELF! :-)

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    93 of 97 people found this review helpful

  • 5 of 5 Stars

    Promising product!

    By Bughater on 10/23/2012

    Verified Purchase

    I purchased this item to get rid of bed bugs, I can not report on long term use, because I just used it yesterday but I can tell you it works and it works fast. It has no odor, I used it with gallon sprayer as recommended and I added Gentrol IGR into the mix, since this was my first time application I used 2 fluid ounce instead of 1 fluid ounce to prevent re infestation of bedbugs. After a mix , fluid is milky color but it dries clear without leaving any stains. By the time I ordered this product I am confident I had already eliminated at least all adult ones using a steam cleaner (almost everyday) for past six weeks, DE, 90% alcohol, Clorox, Bedlam Plus, and combination of Essential Oils in steamer such as Clove oil, Pepermint, Orange oil, Rosemary and Cedar oil. I put 10 drops of each to 32 ounce water, I than add 1 fluid ounce of this mixture to the water that I put in the steamer. Not only vapor alone kills the baby ones readily, the steam comes out dryer with more pressure force than when used water alone. I live in a condominium where the whole complex has bed bug problems, there for I have no choice but keep using products such as this one to prevent re- infestation. The reason I say this about a week ago while I was steam cleaning my carpets I lifted the clear plastic mat that was under the front entrance door, I discovered 5 adult dead bedbugs that got stuck between the carpet and the mat! I than realized they are coming just like everyone else, from the front door. After I sprayed along the base boards and cracks even the kitchen with FenvaStar, I sprayed front of my door and the hall way and front of neighbors door while no one was looking. About 20 minutes later when I walked in to my kitchen I saw 2 adult dead roach on the floor that I didn't even know that I had. The next day (which is today) my neighbors knocked on the door to show me the dead adult bedbugs that they found right along where I sprayed. So I can tell you this product works and I hope it will keep on working. From an experience one more thing I have to add, when you treat the infested area such as your mattress or couch, if you do not treat the carpet underneath at the same time, you are guaranteed to get re infestation, you have to steam it the way you steam your mattress and steam wash your whole carpet as soon as possible. The young bedbugs hide inside the carpet, you can't see them, but you will see them in your dirty water when cleaning your carpets. When washing clothes use Clorox and add cup of distilled vinegar to rinse water to kill all eggs, also add vinegar while steam cleaning carpets. Bed bugs are very psychologically draining, and depressing, I agree with most reviews on this site you have to use combination of products, I doubt if one product alone will get rid of them. This one works and reasonably priced!

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    86 of 91 people found this review helpful

  • 5 of 5 Stars

    Updating: Promise delivered!

    By Nurten on 10/28/2012

    Verified Purchase

    Five days after the first application, I started wondering how come I can't even see just one bed bug, I know I have eliminated the adult ones but every evening I go around the infested part of the apartment with a magnifier glass and able to find the colorless little ones, before steaming them.(By the way not all colorless ones can be seen with a naked eye, they may appear as little as salt grain, but they move!) I had only used this product only along the base boards cracks and crevices and only very lightly wood part of the under the sofa and box mattress, being careful not saturating the fabric (while I was putting it I was not sure if it was going to stain or not at the time). This morning I turned over my sofa, (which is the most infested part in the apartment) I found over dozen bright red dead bed bugs along the wood casing, I would say they were the size of ranging from 2nd 3rd and 4th in star nymph,( I collected few and looked at them with a magnifier), very strangely, out of all the places, I also found few on the carpet that is front of the Bathroom, I had been seeing them while I was vacuuming but I had dismissed them as red lint from the towel. After finding the ones under the sofa, I again found some in that area and looked again , yes they were dead bed bugs. I did not use vinegar while steam washing that part of the carpet because I had ran out of vinegar, I will definitely go get another gallon and steam wash that part again. There you go, this product once again earned my FULL SEAL OF APPROVAL and I approve this massage!

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    57 of 60 people found this review helpful

  • 5 of 5 Stars

    very good product

    By Anonymous on 07/22/2013

    Verified Purchase

    I had the worst infestation of bed bugs and ants. I payed $540 to exterminater for nothing. Until I found this product I never had a good night sleep first time yesterday. so don't waste your $ on nothing else .

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    45 of 47 people found this review helpful

  • 5 of 5 Stars

    Great Bed Bug Defense in Public Hallway

    By Jade on 03/05/2013

    All right, I have written about the wonders and joy of BedLam on the inside of my apartment to rid me of bedbugs, but FenvaStar EcoCap mixed with Gentrol is my secret weapon against re-infestation from my bug bombing infested neighbors next door on both sides of my apartment. I am in Chicago, and we are having major bed bug issues. In my building, we didn't get infested until 2 months ago and all of the neighbors on our side of the floor were getting bites. Needless to say, the new people that moved in 3 months ago moved in infested. But instead of contacting the building, they bug bomb each weekend and boy can you tell. Every weekend, around sunday night, the bed bugs start showing up on the walls in the hallway and under my door, and there I am on Sunday night spraying....and vacumming the pile of carnage by Monday morning. So after talking to my manager, getting quotes, they said they can't do anything unless they call to have them spray and they haven't called. Now imagine one neighbor on one side bombing and the other neighbor on the other side doing nothing...bed bugs coming in through the pipes. In comes FenvaStar EcoCap and Gentrol and my beloved plant pump sprayer. Sprayed my perimeter, under the sink, my whole front door, around the front door and in the corners of the wall. Took it one step further, snuck out at 2am to the hallway and sprayed my neighbors door on both sides, the perimeter and the hallway walls. Now I still hear my neighbors stomping and vaccumming but no more bugs in the hallway or in my bathroom sink, and barely anything under my front door..I just re-spray every 2 weeks. I finally let my manager in on what I was doing, and he loved it and is now recommending gentrol to his pest control company that sprays. Whew! But to this day, the neighbors haven't been treated so I'll be a loyal customer till somthing knocks these bedbugs out! Thanks! :)

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    36 of 37 people found this review helpful

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Questions & Answers

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Can I use FenvaStar to treat the carpet for bed bug nymphs?

I'm currently living in an apartment complex and both apartments next to mine to the right and left of me are infested. The tenants are bug bombing and they are now coming through the drain pipes and fenvastar is working great to kill them there. I did a perimeter spray with FenvaStar, but I want to know if I can also treat the carpet? Not saturating it of couse due to the water but a light misting?

There really is no need to treat the whole carpet with Fenvastar for bedbugs. If the bedbugs do move through the walls into your apartment they will pass through the product that you applied around the perimeter and be killed. If you feel you must spray the carpets Fenvastar is labeled to be used as a broadcast spray over carpeted areas.

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28 of 29 people found this answer helpful

How long to stay away after applying FenvaStar EcoCap?
Only the applicator should be in the area during the application of FenvaStar EcoCap. Others including children and pets can return once the surfaces are completley dry.

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24 of 30 people found this answer helpful

Is the FenvaStar EcoCap safe for mattresses?

Can you lightly spray a mattress and then cover with a bedbug cover?

FenvaStar Eco Cap is not labeled to be sprayed on mattresses. Instead you should consider using Bedlam or Bedlam plus as they are both labeled specifically for this type of application.

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19 of 21 people found this answer helpful

Can I make half gallon instead of full gallon of FenvaStar if I think I wont use all of it?
Absolutely. You will simply use half of the recommended usage rate for the 1/2 gallon of water.

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18 of 19 people found this answer helpful

If I don't use all the spray I made, can I keep it for 2 weeks to spray again for bedbugs with FenvaStar?
FenvaStar Eco Cap should be applied within 24 hours after it is mixed with water. The remainder should be discarded.

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18 of 18 people found this answer helpful

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FenvaStar EcoCap 4 out of 5 stars Rating: 4.2 (70 Reviews / 61 Q&A)

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