Prentox Larva Lur (Contains Propoxur)

Prentox Larva Lur (Contains Propoxur)

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Product Overview

Prentox Larva Lur (Contains Propoxur) is a ready to use and effective product to control ants (except California), cockroaches, crickets and silverfish. It has fast acting control that will kill these insects immediately, including those that are resistant to chlorinated hydrocarbon and phosphate insecticides. Baiting is the most effective control method and can be used in almost every single site. After digesting the bait, they will quickly die. Places include commercial, household, stores, warehouses, restaurants, and government buildings. Larva-Lur has low application rates (4 oz. per 1,000 square feet) to allow for less product handling and low visibility while being effective. Larva Lur is the solution for fast acting and cost effective control to eliminate crickets, cockroaches and ants.

This product used to be sold and marketed under the Envincio brand name.

Features and Specs

Active Ingredient Propoxur - 2%
Target pests Cockroaches: American, Brown, Brown banded, German, and Oriental roaches. Crickets, Ants (excluding carpenter, fire, harvester and pharaoh ants) (except California), and Silverfish.
For use in Homes, Apartment Buildings, Stores, Restaurants (non-food areas), Warehouses, Government Offices, Public Buildings and Institutions.
Pet safe Do not apply to floors or other surfaces likely to be contacted by children or pets.
Time to Kill Immediately
Shipping Weight 5.42 lbs
Manufacturer Zoecon
EPA Registration 655-802


For Use By Pest Control Operators in Restaurants (food areas), Poultry Packing, Red Meat Packing and Food Processing Plants, including plants that are Federally Inspected, as well as food processing areas of stores, warehouses, Government Offices, Public Buildings and Institutions. Apply bait on paper, pasteboard, or other material that will permit removal. Locate these bait stations on window sills, on floors near walls, in storage areas and other areas where insects have been observed. Maintain strict account of location and number of bait stations. Do not apply bait in edible product areas until operations have ceased for the day. Remove all bait stations from the edible products areas before resuming operations. Do not store Prentox Larva-Lur in or around such processing plants.

For Use in Research Facilities: The use of Propoxur in research animal quarters for pest control will not induce changes in liver microsomal enzyme activity in these animals. Prentox Larva-Lur should not be applied directly on animals nor applied where animals can feed on the bait.

For Outdoor Use around patios, driveways, sidewalks, and foundations only. Apply bait evenly in a band 2 to 3 feet wide at the rate of 4 oz. per 1000 sq. ft. around foundations, patios, driveways, or sidewalks, taking care to treat any cracks or crevices. For maximum effectiveness treat beneath concrete drain splash pans.

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Is Prentox Larva Lur safe or toxic to chickens?

If I sprinkle this around the perimeter of my home and my chickens sometimes scratch and forage in those beds, is it harmful to them?


Prentox Larva Lur has been discontinued by the manufacturer Zoecon.  They can be contacted at 925-948-4000 for additional information about this product and why it was discontinued. Propoxur products in general are no longer available. The manufacturer does have a new granule bait available called Lava-Lor Granule Bait which may suit your needs.

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What is best to treat leaf cutter ants?

Leaf cutter ants can be a difficult pest to get rid of. The colonies are large and the ants make their own food so poison baits only have limited effects on this species of ants. According to several university websites, Maxforce Complete Granules containing hydramethlynon are some what effective, though they will usually eliminate only about 30% of a large colony in one treatment and will need to be reapplied several times.  DeltaGard granules is one of the only products actually labeled for leaf cutter ants. The product label recommends treating the mound directly and lightly watering the granules in. Again, it may take several treatments to get the desired results.

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Is Larva Lur effective against grasshoppers?
Prentox Larva Lur is not labeled to treat for grass hoppers. Please visit our Grasshopper control page which is lists all the products recommended for grasshoppers.

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