Hexaflumuron: An Effective Insect Growth Regulator (IGR)

Technical Introduction

Hexaflumuron (IUPAC: 1-[3,5-dichloro-4-(1,1,2,2-tetrafluoroethoxy)phenyl]-3-(difluoromethoxy)urea) is a benzoylurea insecticide that functions as an insect growth regulator (IGR). It primarily targets termites and other wood-destroying insects by inhibiting chitin synthesis, disrupting molting, and preventing normal exoskeleton development.

• Mode of Action: Inhibits chitin biosynthesis, preventing proper exoskeleton formation, causing larval death.

• Systemicity: Non-systemic; acts mainly via ingestion by larvae or termites.

• Target Spectrum: Highly effective against termites, ants, and other wood-feeding insects.

Applications

• Termite Control:

  • Used in soil treatment, baiting systems, and structural wood protection to control subterranean and drywood termites.

• Urban Pest Management:

  • Applied to ant colonies and other nuisance insects in residential and commercial buildings.

• Forestry & Wood Protection:

  • Protects timber, wooden structures, and furniture from termite damage.

• Bait Formulations:

  • Commonly used in slow-acting bait systems, allowing insects to carry toxicant back to colonies.

Advantages

• Colony-Level Control: Acts slowly, allowing termites to transfer the insecticide within the colony.

• Low Mammalian Toxicity: Relatively safe for humans and pets when used according to label directions.

• Target Specificity: Primarily affects insects undergoing molting, minimizing impact on non-target organisms.

• Long-Term Protection: Provides lasting control of termite infestations.

• Compatible with Bait Systems: Effective in both liquid and solid bait formulations.

Specifications (Typical Parameters)

FAQ

Q1: How does Hexaflumuron kill termites?
A: It inhibits chitin synthesis, preventing proper exoskeleton formation during molting, leading to larval death and colony decline.

Q2: Is Hexaflumuron fast-acting?
A: No. It is slow-acting, allowing insects to transfer the insecticide within the colony, ensuring effective colony-level control.

Q3: Can it be used for general insect pests?
A: Its primary use is against termites and ants. It is less effective for general chewing or sucking pests.

Q4: Is Hexaflumuron safe for humans and pets?
A: Yes. It has low mammalian toxicity, but users should still follow label instructions for safe handling.

Q5: Can Hexaflumuron be used in bait systems?
A: Yes. It is highly effective in slow-acting bait formulations, allowing insects to carry it back to their colonies for systemic control.