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Duplex G Mosquito Larvicide

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Length of Control


Formulation type


IRAC Mode of Action

11 A/B Microbial Disruptor, 7A Juvenile Growth Hormone

Active Ingredient

(s)-Methoprene, Bti

  • Contains two active ingredients to control mosquito larvae: Bti and (S)-methoprene
  • Provides a quick kill with long residual control of all mosquito larvae species
  • High-bulk density granular product for uniform application
  • Allows for pre-flood treatments
  • Developed and manufactured by Central Life Sciences
  • Distributed by Clarke for public health use

Product Details

About Duplex™ G Mosquito Control Larvicide

Duplex G larvicide from Central Life Sciences delivers dual-active control through a combination of biorational control agent (S)-methoprene and biological control agent Bacillus thuringiensis subspecies israelensis (Bti) in a granular formulation. By combining active ingredients from different chemistry classes, Duplex G assists with resistance management while benefiting from a favorable environmental profile for non-target species.

Clarke is an authorized distributor of Duplex G formulations for public health use.

Duplex G Formulation Review

Duplex G is a granular larvicide with high bulk-density, supporting calibration ease, normalized swatch characterization for ground and aerial application, uniform granule dispersion and excellent foliage penetration.

Duplex G has a wide application rate per the label, 2.5 – 20 lbs/acre. Please refer to the product label for more guidance on application and habitat fit.

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Our fundamental job is to discover and design the most effective mosquito control products of the future, and ensure the performance we can achieve in the lab translates to real-world operational excellence for customers.

Yemi Susan Bullen McClain
Yemi Susan Bullen-McClain, Ph.D
Director, Product Innovation & Field Sciences

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