STP1183

    Comparative Performance of Culigel® Superabsorbent Polymer-Based Pesticide Formulations

    Published: Jan 1993


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    Abstract

    Nonagglomerated (granules) or agglomerated (disquets) Culigel® Type IV or V superabsorbent polymer-pesticide compositions were evaluated against aquatic or terrestrial pests in a series of controlled-release bioassays. Bioactive agents included in the granular single-or joint-action pesticide formulations for use against mosquito larvae and/or aquatic weeds were bacteria or growth regulators and/or a herbicide. Bait-pesticide disquet formulations were evaluated against German cockroach nymphs or adults. Results of aquatic tests indicated that Culigel® Type IV granules can be used as single- or dual-product matrices for entrapment/encapsulation and prolonged controlled release of mosquito larvicides and/or herbicides. Comparative performance studies showed that single- or joint-action pesticide slow-release profiles from Culigel® Type IV granules were regulated or controlled in aquatic habitats by the type and concentration of a dispersant or two- or three-component dispersant complex. Long-term release of pesticides encapsulated within Culigel® Type V disquet formulations was demonstrated against immature and adult cockroaches.

    Keywords:

    Culigel, ®, superabsorbent polymers, controlled release, encapsulation, bioactive agents, insecticides, herbicides, pesticides


    Author Information:

    Levy, R
    Research Entomologist/Coordinator, Research Assistant and Director, Lee County Mosquito Control District, Fort Myers, FL

    Nichols, MA
    Research Entomologist/Coordinator, Research Assistant and Director, Lee County Mosquito Control District, Fort Myers, FL

    Miller, TW
    Research Entomologist/Coordinator, Research Assistant and Director, Lee County Mosquito Control District, Fort Myers, FL


    Paper ID: STP25143S

    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP25143S


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