PESTICIDE INFORMATION SOUTHWEST FLORIDA

PESTICIDE INFORMATION

1. A pesticide is defined as a substance or mixture of substances intended for destroying, repelling, or mitigating any pest.  A pest is any living thing that exists where it is not wanted.
2. Insecticides enter the insect's body by three common ways: by contact, as stomach poisons, or as fumigants.  Many pesticides may enter the body by more than one of these possible routes.
3. Contact insecticides kill pests by contacting and entering their bodies either directly through the integument into the blood or by penetrating the respiratory system through the spiracles into the tracheae.  These materials may be applied directly to the insect body or as a residue on plant or animal surfaces.  Generally, coarse sprays or dusts are more effective means of applying contact insecticides.
4. Stomach poisons must be swallowed in order to cause death.  They may be formulated as liquids, dusts, pastes, granules, or baits.  In the case of liquids and dusts, the pesticide is usually applied to some substance the animal will chew or walk through.  Pastes, baits, and granules may be formulated with a feeding attractant that is consumed b the pest.  In general, organic and botanical insecticides are predominantly stomach poisons.
5. Fumigant pesticides usually are limited to materials, structures, or organisms that are or can be enclosed in a tight enclosure.  When used properly a fumigant will kill all the developmental stages of an animal.  With insects this includes: egg, larva, pupa, and adults.  When a fumigant reaches the appropriate concentration, it will kill pests quicker than any other pesticide.
6. Miscellaneous pesticides may enter the body through any one or more of the previously mentioned means, but have some specialized mode of action or means of application.
7. Systemic insecticides act as a stomach poison.  TurfThor is a systemic we apply to plants through our power sprayer.  The insecticide is absorbed into the plant and when an insect bites into the plant for moisture, it will ingest the insecticide and kill it.
8. Desiccant dusts absorb or abrade off the outer waxy layer of the insect's cuticle, causing the loss of body fluids and death by dehydration.  Both silica aerogel and boric acid work as desiccants.

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