Orthene PCO Pellets, manufactured by Amavac, is a water dispensable granule insecticide to kill a broad-spectrum of pests such as earwigs and pesticide resistant pests like German cockroaches in various industrial, institutional, and commercial buildings like hotels, stores, and more.

These pre-measured packs contain acephate 97.4 %, which works by inhibiting acetylcholinesterase and ultimately paralyzing the insects nervous systems leading to eventual death.

Orthene PCO Pellets was uniquely designed to provide a long-term residual against many pests on tile, stainless steel, and other non porous surfaces in sensitive areas like commercial kitchens.

Tools Needed

To apply Orthene PCO Pellets, you will need a handheld pump sprayer or backpack sprayer.

How to Use

• Step 1: Determine the area to apply Orthene PCO Pellets as this will determine the rate to use. Use Orthene PCO Pellets for residual pest control in the areas listed by application as a 0.75% or 1.0% spray. Use the 0.75% rate for control of light infestations on non-porous surfaces and the 1.0% spray to reduce heavy infestations. To achieve a 1/2% (0.5) concentration, mix 19.5 grams of Orthene PCO Pellets (or 1/2 packets) in 1 gallon of water. For a 3/4% (0.75) concentration, apply 29.3 grams (3/4 packets) of product in 1 gallon of water. For a 1% concentration, mix 39.0 grams (1 packet) of product in 1 gallon of water. Ant mound drench applications, dissolve 1 packet (1.4 oz.) of product in 9 gallons of water. Refer to the product label as it will give specific concentration rates that can be used.
• Step 2: Fill your selected sprayer tank with half the amount of water, add required amount of Orthene PCO Pellet (leave packet unopened), then pour the remaining half of water. Shake the sprayer tank until it is evenly mixed.
• Step 3: After the pellets have completely dissolved and are mixed with the water, begin spraying areas where insects will travel. For perimeter treatments, spray a band of soil 6 to 10 ft. adjacent to the structure and up 2 to 3 ft. on the foundation. For an ant mound drench, apply 1 gallon of mixed Orthene PCO Pellets to each mound by sprinkling the mound until it is wet and treat a 4 ft. diameter circle around the mound. Do not treat a mound more than once per season. For spot applications in listed structures on this product label, adjust the sprayer to a fan setting then spray no more than 2 sq. ft. per individual spot treatment. Treat areas such as baseboards, under and behind refrigerators, stoves, dishwashing and other equipment, as well as in storage areas, closets, sinks, cabinets, around windows, doors and water pipes. Spot treatment should also include underside of drawers, shelves and other sites where cockroaches frequent or travel.

Where to Use

Orthene PCO Pellets can be used within industrial, institutional and commercial buildings including restaurants, warehouses, stores, hospitals, hotels, manufacturing plants and ships. Also, apply as a residual spray or with a paint brush to surfaces of buildings, window frames, shutters, entry ways, screens, eaves, patios, garages, carports, around garbage areas and other areas where these pests congregate.

It may be use in Federally Inspected Meat and Poultry Plants and places other than private residences in which exposed food is held, processed, prepared or served.

This product is not for indoor residential use. It is also not for use in feed processing areas in feed handling establishments.

When to Use

Apply Orthene PCO Pellets when facilities are closed and foods are not exposed in the treatment area. Spray this product when pest activity is first noticed. 

When making outdoor applications, apply this product in the early morning or late afternoon when pests like ants are most active.

Safety Information

Orthene PCO Pellets is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.

Do not allow children or pets to come into contact with treated surfaces until sprays have dried.

Special Considerations

A period of 3 to 7 days may be necessary for Orthene PCO Pellets to reach its maximum effect on cockroaches.

Do not apply this product directly to carpet as staining may occur. Do not treat unpainted masonry floors in poorly ventilated areas such as garages or basements, especially where moisture or high humidity exists since activity on porous surfaces may be limited.

Not for use on residential turf as a perimeter treatment.