Pesticides can be classified by target organism (e.g., herbicides, insecticides, fungicides, rodenticides, and pediculicides - see table), chemical structure (e.g., organic, inorganic, synthetic, or biological (biopesticide), although the distinction can sometimes blur), and physical state (e.g. gaseous (fumigant)). Biopesticides include microbial pesticides and biochemical pesticides. Plant-derived pesticides, or "botanicals", have been developing quickly. These include the pyrethroids, rotenoids, nicotinoids, and a fourth group that includes strychnine and scilliroside.:15 COUNT 4
QSN1 What is one way to group pesticides? ANS1 chemical structure QSN2 Give three examples of target organisms of pesticides. ANS2 herbicides, insecticides, fungicides QSN3 What are the two types of biopesticides? ANS3 microbial pesticides and biochemical pesticides QSN4 Which type of pesticides have seen rapid growth in development? ANS4 Plant-derived pesticides, or "botanicals