Indoxacarb Cockroach Gel Bait Syringe

⚠️ IMPORTANT SAFETY NOTICE: This product contains indoxacarb. Read the label before use. Keep out of reach of children and pets. Wash hands after handling. Do not apply directly to water or to areas where surface water is present. Do not use in or on electrical equipment where a shock hazard may exist.

GOLDEN-CAT Indoxacarb Cockroach Gel Bait Syringe is a ready-to-use gel bait supplied in a syringe with a narrow applicator tip. The active ingredient is indoxacarb, an oxadiazine insecticide classified as an IRAC group 22A voltage-dependent sodium channel blocker. The formulation is intended for crack-and-crevice placement in structural cockroach management programs.

Indoxacarb differs from many contact insecticides in one important respect: it is a pro-insecticide. The parent compound is not toxic until it is ingested and converted by enzymes in the insect midgut into a more active metabolite. This activation step has two practical consequences for baiting. First, the conversion delay allows a cockroach to consume a lethal dose and return to its harborage before symptoms progress, which is the basis for horizontal transfer within the aggregation. Second, because activation depends on target-insect enzymes, the compound retains a degree of selectivity toward the pest species being treated. The sections below set out the rate references, placement criteria, species-specific notes and handling requirements that determine whether a baiting program using this product performs as intended.

Product Specifications

Mechanism: Bioactivation and the Basis for Horizontal Transfer

Indoxacarb is not toxic to insects in its parent form. Upon ingestion, enzymatic cleavage in the midgut converts it to a decarbomethoxyllated metabolite, commonly referred to as DCJW or DPX-JT333, which blocks voltage-dependent sodium channels and disrupts nerve signal conduction. This bioactivation step is the reason indoxacarb is described as a pro-insecticide. The delay between ingestion and the onset of symptoms is not a formulation defect. It is the mechanism that allows a foraging cockroach to return to the aggregation before it is incapacitated, creating the conditions for secondary exposure of other individuals through contact, excretions and necrophagy.

A laboratory study on German cockroach published in the Journal of Economic Entomology documented this transfer quantitatively. A single bait-fed adult donor transferred indoxacarb to numerous primary recipients, causing secondary mortality. Those recipients then became secondary donors and caused significant mortality in other members of the aggregation, resulting in tertiary kill. Excretions from a single bait-fed adult killed 38 of 50 nymphs within 72 hours, and the dead nymphs subsequently vectored indoxacarb to 20 adult males and killed 16 of 20 recipients within 72 hours. The same study found that transfer was most effective when recipients interacted with freshly symptomatic donors in the absence of alternative food.

Two implications follow for application. First, baiting works best when competing food and water sources are reduced. Second, bait should be placed where cockroaches aggregate, not merely where they are seen moving. A deposit in the open may be encountered, but a deposit inside the harborage or along an active crack line is more likely to be consumed by individuals that will later interact with the rest of the colony.

Application Rate and Deposit Density

EPA-registered indoxacarb gel bait labels use a rate expressed in spots per linear measure of harborage, with a defined spot weight. Several small applications distributed within an infested area are described on the label as more effective than one or two large applications.

The figures above are drawn from EPA-registered labels for indoxacarb gel baits and serve as reference points. The label for the batch supplied, in the destination market, is the controlling document for application rate.

Surfaces, Heat and Spray Interactions

Indoxacarb gel bait labels specify a set of surface conditions under which the formulation should not be applied. These restrictions are not marketing caveats. They describe conditions under which the bait will physically fail or be removed before a cockroach can consume it.

There is one interaction worth separating from the general “avoid sprays” rule. Indoxacarb is also available in non-repellent spray formulations. Extension and manufacturer guidance notes that when a non-repellent indoxacarb spray is applied before Advion gel bait, gel consumption may increase, because the spray reduces the population without leaving a repellent barrier that discourages feeding. This is a specific co-application pattern that differs from the general restriction on applying gel over a residual spray. The distinction matters in treatment design: a non-repellent indoxacarb spray used before gel is not the same as a repellent pyrethroid spray used in the same area.

Target Species and Placement Notes

The four species covered by this product do not share the same harborage preferences, and the same spot density is not appropriate for all four.

Professional Application

Intended Users

· Licensed Pest Control Operators (PCOs)

· Professional pest management companies

· Certified facility management teams

· Institutional pest control departments

· Food safety and sanitation teams

Application Scenarios

· Commercial kitchens: restaurants, hotels and catering facilities, confined to crack-and-crevice placement

· Food processing: plants, mills and packaging facilities, in accordance with the facility food safety plan

· Institutional buildings: hospitals, schools and government buildings

· Commercial offices: break rooms, kitchens and restrooms

· Retail and grocery: stockrooms, food aisles and receiving areas

· Residential multi-unit: apartment buildings and condominiums

· Industrial facilities: warehouses, factories and break rooms

· Transportation: airplanes, trains, ships and food trucks, subject to the carrier pest management plan

Precision Application Technique

· Confirm active harborages by inspection before placing deposits. Bait placed where activity has not been confirmed adds exposure without contributing to control.

· Apply spots of approximately 0.5 g, about 1/4 inch in diameter. In narrow cracks, a thin bead less than 1/8 inch wide may be more appropriate than a spot.

· Insert the applicator tip approximately 1/2 inch into cracks, crevices and openings where cockroaches are harboring or entering, rather than placing gel on the adjacent exposed surface.

· Distribute several small placements within an infested area. The label describes this as more effective than one or two large applications.

· Do not apply to surfaces above approximately 120 to 130°F, to surfaces that are routinely washed, or to food contact surfaces.

· Do not apply gel over a surface recently treated with a residual repellent spray, and do not spray a residual repellent over existing gel deposits.

· Inspect periodically. Replenish consumed deposits and replace deposits that have dried, hardened or become contaminated with grease or dust.

Compliance and Handling

· Read the product label before use. The label is the controlling document for use directions, restrictions and PPE requirements in the destination market.

· Wear gloves and eye protection during handling. Avoid contact with skin, eyes and clothing. Wash thoroughly with soap and water after handling.

· Do not eat, drink or smoke while handling the product.

· Keep out of reach of children and non-target animals. Store in the original container, locked, in a cool dry area separated from food, feed and water sources.

· Do not apply directly to water, to areas where surface water is present, or to intertidal areas below the mean high water mark. Do not discharge to drains or watercourses.

· Do not use in or on electrical equipment where a possibility of shock hazard exists.

· Dispose of unused product and empty containers according to local regulations. Do not reuse or refill the gel bait dispenser.

· Full first aid information is provided in the Safety Data Sheet supplied with each order.

First Aid Measures

· If swallowed: Immediately call a poison center or doctor or physician. Have the product container or label available.

· If on skin: Wash with plenty of soap and water.

· If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

· If inhaled: Remove person to fresh air and keep comfortable for breathing.

· Full first aid information is provided in the Safety Data Sheet.

Bulk Professional Packaging

Supply, Packaging and Shipping Information

Frequently Asked Questions

What does “bioactivated” mean for how this bait should be placed?

It means indoxacarb becomes toxic only after it is ingested and converted by enzymes in the cockroach midgut. The delay between consumption and incapacitation is what allows a cockroach to return to its harborage and expose other individuals. Placement should therefore target aggregation points and active crack lines, not open surfaces where a cockroach might encounter the bait but have no opportunity to interact with the colony afterward. A deposit inside a harborage is more likely to contribute to secondary transfer than a deposit on an exposed wall.

What spot size and density should be used?

EPA-registered indoxacarb gel bait labels give a spot weight of approximately 0.5 g, corresponding to a diameter of about 1/4 inch. For light to moderate infestations, the label reference is 1 to 3 spots per 10 linear feet of harborage or per square yard. For heavy infestations, 3 to 5 spots per 10 linear feet. A thin bead less than 1/8 inch wide and about 2 inches long is an alternative for narrow construction gaps. Several small applications are described on the label as more effective than one or two large ones. Confirm the exact rate on the label of the batch supplied.

How strong is the evidence for secondary and tertiary kill?

The horizontal transfer effect for indoxacarb in German cockroach has been measured under laboratory conditions. A 2008 study in the Journal of Economic Entomology found that a single bait-fed adult donor transferred indoxacarb to numerous primary recipients, which then became secondary donors and caused tertiary mortality. Excretions from one bait-fed adult killed 38 of 50 nymphs within 72 hours, and the dead nymphs subsequently vectored indoxacarb to 20 adult males and killed 16 of 20 within 72 hours. The same study found that transfer was most effective when recipients interacted with freshly symptomatic donors in the absence of alternative food. These are laboratory findings. Field performance depends on placement, competing food sources and the ratio of donors to recipients in the aggregation.

How does indoxacarb bait fit into a rotation program?

Indoxacarb is an IRAC group 22A compound. Its mode of action differs from neonicotinoids and from fipronil, which makes it a logical rotation partner where pyrethroid or neonicotinoid performance has declined. A 2024 study on German cockroach field populations in Taiwan found that almost 80% of populations showed over 90% mortality at 3× LD95 indoxacarb treatment, with performance indices of 90 to 100 for indoxacarb bait. However, a separate assessment reported a gradual increment in resistance ratio under repeated indoxacarb gel bait treatment, which suggests that the compound should not be used as a permanent standalone treatment. Rotation decisions should be based on treatment history and monitoring data, not on a fixed calendar.

Can this gel be used with an indoxacarb spray?

Indoxacarb is available in non-repellent spray formulations, and manufacturer guidance notes that applying a non-repellent indoxacarb spray before Advion gel bait can increase gel consumption. This is different from the general rule against applying gel over a repellent residual spray. A non-repellent indoxacarb spray used before gel does not leave the same repellent barrier that would suppress feeding. However, do not apply gel directly over a freshly sprayed surface, and do not spray a residual formulation over existing gel deposits. Allow sprayed surfaces to dry and follow the label directions for the specific products used.

Can this gel be used in food handling areas?

Use in food handling areas is governed by the label in the destination market and by applicable food safety regulations. EPA labels for indoxacarb gel baits restrict application in food handling establishments to crack-and-crevice treatment only, prohibit application to food contact surfaces, prohibit application to surfaces that are routinely washed, and require that the dispenser tip be placed approximately 1/2 inch into cracks and crevices. The buyer or applicator is responsible for confirming that the intended placement is consistent with the local label and the facility food safety plan.

How long does the gel remain attractive after application?

Manufacturer and distributor guidance for indoxacarb gel baits describes palatability of up to approximately three months under favorable conditions, with some sources reporting attractiveness for up to 90 days and residual activity for several months. Duration depends on temperature, humidity, surface condition and dust or grease accumulation. Inspect at regular intervals during active treatment. Replenish consumed deposits and replace deposits that have dried, hardened or become coated with foreign material before the bait is completely gone.

Is indoxacarb restricted in any markets?

Yes, and the registration status varies by jurisdiction. Indoxacarb is registered for public health and structural pest control uses in some markets, while other markets may have different approved use sites, concentration limits or labeling requirements. The applicable label for the batch supplied is the controlling document for permitted uses. Buyers are responsible for verifying that the intended import and use of the product is permitted under the regulations that apply at the destination.

Do you offer private label or custom fill?

Yes. OEM and ODM are available for professional pest control distributors and brand owners. Custom syringe fill sizes, labeling and packaging formats can be discussed against minimum order quantities. Private label does not alter the buyer’s responsibility to ensure that the label and claims used in the destination market are compliant with local regulatory requirements, including the registration status of the active ingredient.