Chemical pesticides are contact poisons and stomach poisons.
2.
Hydramethylnon is a slow-acting stomach poison ( delayed toxicity ) that does not need to be eaten to be effective.
3.
Indoor ATSB constitute a novel application method for insecticide classes that act as stomach poisons and have not hitherto been exploited for mosquito control.
4.
Baits also can be effective where starvation strategies have been applied reasonably successfully; a sweetened bran mash containing a suitable stomach poison can be very effective against the small numbers of surviving caterpillars.
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