When insects infest stored grains, they can cause serious damage to commodities – and profits. Growers risk having buggy grain shipments docked or outright rejected. Elevators risk introducing insects into their operation.

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A rescue treatment of Centynal™ EC Insecticide and PBO-8® Synergist applied directly to grain.

Centynal™ EC Insecticide

Centynal™ EC Insecticide kills a broad spectrum of stored product insects, including Indian meal moths, lesser grain borers, sawtoothed grain beetles, granary weevils, rice weevils and more. The product is CODEX approved for use on rice, wheat, corn and more.

PBO-8 Synergist Family Product Shot

PBO-8® Synergist

PBO-8® Synergist provides a boost to the effectiveness of Centynal™ EC Insecticide. PBO-8® Synergist is the ideal tank-mix partner for Centynal™ EC Insecticide when faced with tougher infestations, including weevils.


For grain that will be stored longer than 90 days, an insect growth regulator or a combination of an IGR and insecticide can help control both adult and larval stages of insects.

Diacon IGR Family Product Shot

Diacon® IGR

Diacon® IGR is the standard in long-term insect protection for stored grains. The active ingredient prevents larvae from maturing into adults, interrupting the lifecycle for a broad spectrum of stored product insects. This versatile liquid formulation is labeled for all stored commodities. The product is EPA tolerance exempt and CODEX approved.

Diacon®-D IGR

Diacon®-D IGR offers all of the long-term protection of stored commodities and profits as Diacon® IGR in a dry formulation ideal for operations where water is scarce. The product can be applied directly to the grain stream or as an empty premise treatment.

Diacon® IGR PLUS & PBO-8® Synergist

Diacon® IGR PLUS combines the long-term protection of an insect growth regulator with the immediate knockdown of adult insects. This convenient all-in-one formulation can be applied directly to grains or to empty bins and warehouses. For the control of weevils, PBO-8® Synergist makes an ideal tank-mix partner.


For more information about our line of stored grain protectants and application tips to help you maximize product effectiveness, explore the following resources:

Our Randy Willis discusses product options for on-grain applications
Six helpful tips to get the best results out of your stored grain protectants
Our Paul Drache explains the how to properly conduct a rescue treatment to bug-infested grain

Read our overview of best practices for treating stored corn

Discover product recommendations and tips for controlling weevils in stored grains

Learn about our entire product lineup through this comprehensive Q+A