FenvaStar EcoCap

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4 out of 5 stars Rating: 4.2

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FenvaStar EcoCap bottle (8 oz)

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FenvaStar EcoCap - CASEFenvaStar EcoCap - CASE case (8 x 8 oz bottle)

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FenvaStar EcoCap - Gallon gallon (128 oz)

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FenvaStar EcoCap

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.

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

PESTS CONTROLLED WITH FENVASTAR ECOCAP: 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

Rating Snapshot

5 stars   34
4 stars   10
3 stars   1
2 stars   5
1 star   4

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Average Customer Rating
4 out of 5 stars (54)

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Most Helpful Customer Reviews
  • 47 of 52 people found this review helpful:

    5 of 5 stars  Promising product!
    By Bughater in Fairfax, VA 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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  • 41 of 43 people found this review helpful:

    5 of 5 stars  A professional Review
    By M. in Arizona 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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  • 37 of 39 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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  • 27 of 28 people found this review helpful:

    5 of 5 stars  very good product
    By Anonymous in brooklyn ny 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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  • 24 of 25 people found this review helpful:

    5 of 5 stars  Great Bed Bug Defense in Public Hallway
    By Jade in Chicago 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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Most Recent Customer Reviews
  • 2 of 5 stars  FenvaStar EcoCap for bedbugs
    By Dmo in Houston on 07/13/2018

    It worked, until it didn't. Had been spraying weekly to get rid of bedbugs. After 3 months the infestation is now worse than when I started treating the house. Using this in conjunction with the other items in the kit. Could almost have paid a professional with what I have spent on chemicals by now. I didn't want the inconvenience of moving out of the house while strangers messed with everything. I should have

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  • 4 of 5 stars  Good product but not low odor
    By Robert in Oklahoma on 06/01/2018

    FenvaStar works well on a wide variety of bugs and is cheap. Not sure on length of residual control yet. This particular product does have a strong odor however. It wouldn’t be tolerable for indoor use.

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  • 4 of 5 stars  Happiness
    By Don in Valenncia PA on 03/23/2018

    Looks very effective so far. 1st treatment is two weeks ago for housefly and Asia Beetle problem. (Infestation?) Noticeable reduction in activity. 2nd application today.

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  • 5 of 5 stars  Great for Bed Bugs With Gentrol
    By April in Houma,la on 03/14/2018

    I have absolutely no idea how I ended up with bed bugs. I made the mistake of moving the infested mattress and box spring downstairs and spread them throughout my house. I was hopeless in what I was going to do. I couldn't sleep bc I woke up with one on my chest. Ugh I was completely a mess. So I started googling and became a somewhat expert at how to get rid of bed bugs. I did the diatomatic earth. I sprayed twice with a pyrothoid, bagged and washed my clothes, vacuumed like no tomorrow and found this. Fenvastar is cheaper than a lot of the chemicals on this site so I thought I would start out with it since it's a different type of pesticide than pyrothoid which bb get resistant to. You need to put out an IGR if you have bed bugs no question about it so I added Gentrol. Im on spray number 2 and I haven't seen a bug or a bite in over a month. I'm going to spray the recommended 3rd time of Gentrol but so far so good. No trace of a bug, castings, nothing. Great product and speedy delivery. Awesome website

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Effective flea treatment
    By Bob in Jackson, MI on 01/22/2018

    I combined this with Precor IGR to take care of a flea problem in my basement and this was by far the most effective. I won't waste time or money on other flea treatments again.

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  It works!
    By Frank in Queens, NY on 11/24/2017

    Product works well, very satisfied! Thx

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  • 0 of 1 people found this review helpful:

    5 of 5 stars  Something worked
    By Tammy in Dayton, KY on 10/18/2017

    Ok, I'm not one to do reviews....BUT....something worked!!! I live in the city and the neighbors got evicted AND WERE INFESTED WITH ROACHES!!! The landlord took the kitchen cabinets out of the house and slammed them on the ground and roaches went everywhere!!! Long story short, they got into my house!!!!!!!!!! I was freaking out!! My daughter is allergic to them! I honestly don't know what worked because I used temprid sc, fenvastar ecocap, boric acid, diatomaceous earth, delta dust, and gentrol....one or all of those worked!! It was not over night. It took about a month, but it did work.

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  • 5 of 5 stars  FENVASTAR ECOCAP
    By David in ENDICOTT NY 13760 on 07/28/2017


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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Excellent Product
    By Shannon in Roseville on 07/05/2017

    This product is excellent! Used this with Nygard and it eliminated the problem with fleas immediately. Easy to mix and use and has no strong smell or odor. Highly recommended!

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  FenvaStar EcoCap
    By Peter in Davenport N, Y 13750 on 06/13/2017

    We use this every year and are bug free for the year.

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Most Helpful Q&A's

03/06/2013 Jade from Chicago, Il

QCan 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?

AThere 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.

15 of 15 people found this answer helpful.
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03/12/2013 Jr from Des Moines Iowa

QCan I make half gallon instead of full gallon of FenvaStar if I think I wont use all of it?

AAbsolutely. You will simply use half of the recommended usage rate for the 1/2 gallon of water.

11 of 11 people found this answer helpful.
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06/05/2015 Brian from Mattituck, Ny

QHow long to stay away after applying FenvaStar EcoCap?

AOnly 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.

9 of 11 people found this answer helpful.
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02/05/2013 Jen from Bklyn, Ny

QIs the FenvaStar EcoCap safe for mattresses?
Can you lightly spray a mattress and then cover with a bedbug cover?

AFenvaStar 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.

9 of 10 people found this answer helpful.
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02/24/2014 Jennifer from Pa

QIf I don't use all the spray I made, can I keep it for 2 weeks to spray again for bedbugs with FenvaStar?

AFenvaStar Eco Cap should be applied within 24 hours after it is mixed with water. The remainder should be discarded.

8 of 8 people found this answer helpful.
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Most Recent Customer Questions

06/23/2018 Sheri from San Diego, California

QWhat are the differences between FenvaStar EcoCap and Temprid FX for BBs? I am concerned about toxicity.
I am confused as to the difference between FenvaStar EcoCap and Temprid FX for bed bug eradication. I am concerned about toxicity which is why I initially went the diatomaceous earth route (along with steaming, vacuuming, constant laundering, mattress/boxspring encasement, etc., etc.) I estimate I have seen no more than ten adults at the very beginning five months ago, but am still getting bitten. I had high hopes with the DE and know that it has been effective in keeping a massive infestation from blossoming and BB population explosion, but clearly I must employ more toxic measures. I recently purchased Gentrol and Steri-Fab from you, but in reading reviews on your site, I think I need to add at least one more component to the DE, Gentrol, Steri-fab program. Again, I'm trying to minimize poisons/toxins. My impression is that FenvaStar EcoCap is as effective as Temprid FX, but less toxic to people and animals, also requires less time away from the treated area before being able to return. This business of pest control is extraordinarily complex especially when it comes to bed bugs and limited financial resources. I am most fortunate, however, to have found your site. Your extensive catalog and knowledge, great prices, and prompt shipping go a long way in helping me feel hopeful. Anyway, as to the pros/cons between FenvaSter EcoCap and Temprid FX, will you please explain and, perhaps, recommend? THANK YOU!


FenvaStar EcoCap and Temprid FX are similar but not the same. The biggest difference is that Temprid FX has two active ingredients for extra control and to help prevent resistance issues. These product have very similar labeling as far as where and how often they can be applied for bed bug control. A great product to use if you are concerned about toxicity would be Crossfire Bed Bug Concentrate. This is a new product with multiple active ingredients, a broader label, very long residual, and no signal word (caution, danger, etc.). Crossfire also has new active ingredients, so there is no risk of resistance. Please take a few moments to review our Bed Bug Treatment Guide for more tips on eradicating this pest.

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06/12/2018 John from Cutchogue Ny

QWill FenvaStar kill outdoor clover mites?
I live in New York so I can’t use Bifen which I see is the most effective against clover mites. Will this kill outdoor clover mites?


Unfortunately, FenvaStar EcoCap is not labeled for clover mites.  However, D-Fense is labeled for clover mites and can be used in New York.  

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12/13/2017 D from Fl

QHas anyone used FenvaStar EcoCap for roaches?


Roach control requires multiple efforts including multiple products for eradication. FenvaStar EcoCap is labeled for roaches and should be tank mixed with an IGR such as Gentrol. We do also recommend applying a professional bait gel in areas where you are not spraying or dusting. Dusting the wall voids is also a great option for better control. Please take a few moments to review our treatment article on How to Get Rid of Roaches for a successful eradication program.


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05/27/2017 Tressa from Tahlequah, Ok

QIs FenvaStar EcoCap a non-repellent to bedbugs?


FenvaStar EcoCap, while considered a repellent, will only be slightly repellent for a short time after application.  Insects can still contact a treated area even after detecting it, though as it is not a true repellent and is meant to provide a long residual to continue to kill insects after the application has dried.

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04/05/2017 Jim from Ca

QDoes the FenvaStar EcoCap burn the plants?
I have a 30gallon sprayer with 120psi I would like to do flea control and mosquito control. Products in the past burn my shrubs and certain sensitive trees. I'm looking for a good product to treat exterior during sunny days.


According to the manufacturer and the product label, certain plants may be sensitive to the final spray solution of FenvaStar EcoCap. A small-scale test is recommended to verify safety to ornamental plants. Spray and observe for one (1) week prior to application of an entire planting. It is a good idea to cover the plants or ornamentals before spraying around that area. The Tempo SC Ultra is not for use on plants being grown for sale or other commercial use.

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03/17/2017 Joshua

QWhat is the difference between diatomaceous earth and Fenvastar EcoCap?


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.

Diatomaceous Earth dust works by causing abrasions on insects as they come into contact with product or ingest it. This contact results in the loss of body fluids then dehydration. Insects cannot become immune to its action. Digestible by earthworms, thus causing them no harm. Very effective in controlling snails and slugs in bedding plant areas and around houses. Diatomaceous Earth is odorless, nonstaining and remains effective in the control of insects as long as the product is present. 


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02/08/2017 Sh

QHow healthy is FenvaStar EcoCap for humans?


FenvaStar EcoCap is a very safe product when used as directed on the product label.  It is an environmentally friendly product made using a renewable vegetable oil instead of petroleum resulting in almost no odor and no VOCs.

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01/08/2017 Corey from Nj

QHow long after applying FenvaStar EcoCap can I mop or steam my hardwood floors?
My husband and I sprayed for fleas last night. The floors are dry but we have noticed some white spots on the floor particularly in one room we sprayed. I'm assuming that we sprayed a little too heavily in that room. Is this a problem and can we wet mop or steam the floor or will this either make the product inactive or will I make the floor unsafe to walk on again while wet? Thank you so much for your time.


FenvaStar EcoCap is rain/water fast after it has dried completely. You can mop after 24 hours, but a steam cleaner likely will take the product up and you will need to re-apply.

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09/14/2016 Rick from Milwaukee, Wi

QWill Fenvastar EcoCap stain?
I'm using it to prevent Box Elder bugs and Asian Lady Beetles but I'm worried that it will stain the wood on my home if I apply it.


No, the Fenvastar EcoCap will not stain when you are spraying it. Please let us know if we can be of any more assistance

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09/13/2016 Teniya from San Bernardino, Ca

QCan I spray FenvaStar EcoCap under my couch cushions?


Apply Fenvastar EcoCap as a spot treatment to potential harborage sites and migration paths, and cracks and crevices, around baseboards, floorboards, headboards, and walls. We do carry Steri-Fab and Bedlam that can be applied to other portions of the couch and cushions. Steri-Fab can be applied to the areas that you will have future skin contact and Bedlam can be applied under the cushions in crevices. 

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