This document defines and describes different types of pesticides: Insecticides control insects, either through contact or by being ingested. Systemic insecticides are absorbed by plants or animals and kill insects that feed on them. Miticides and acaricides control mites and ticks through contact. Fungicides control fungi like molds and rots through contact. Herbicides control unwanted plants, and can be selective or non-selective. Rodenticides control rodents like rats and mice, often through baits. Nematicides control nematodes in soil using fumigants. Molluscicides control snails and slugs by being eaten. Repellents make sites or food unattractive to pests

1. Prepared By: Sidra Javed

2. A pesticide is any chemical
substance which is used by
man to control pests.
The pests may be insects, plant
disease, fungi, weeds,
nematodes, snails, slugs etc.
Prepared By: Sidra Javed

3. 1. INSECTICIDES: These are chemicals used to control
insects.
An insecticide may kill an insect by touching it or it
may have been swallowed to be effective.
Systematic insecticides may be absorbed, injected,
or fed into the plant or animal to be protected.
When the insect feeds on this
plant or animal, it ingests the
systematic chemical and is killed.
Prepared By: Sidra Javed

4. 2. MITICIDES (or
ACARICIDES): These are the
chemicals used to control
mites and ticks. The chemical
must contact the mites or
ticks to be effective.
These animals are so small
that great care must be used
to completely cover the area
on which mites live.
Prepared By: Sidra Javed

5. 3. FUNGICIDES: These chemicals are used to control
the fungi which cause molds, rots and plant diseases.
They work by coming in contact with the fungus
because fungi do not swallow / eat.
Prepared By: Sidra Javed

6. 4. HERBICIDES: These are the chemicals used to
control unwanted plants.
They are used to kill or slow the growth of some
plants rather than to protect them.
Herbicides are of following types:
Non Selective Herbicide –
toxic to all plants. They
could be used to clear the
area under guardrails or
for total control of weeds
in industrial area.
Selective Herbicide – kill
certain plants such as
broadleaved or grassy
plants. They are used in
lawns or golf courses.
Prepared By: Sidra Javed

7. 5. RODENTICIDES: These are the chemicals used to
control rats, mice, bats and other rodents.
Chemicals which controls other mammals, birds and fish
are also grouped in this category.
Most Rodenticides are stomach poisons and are often
applied as baits.
Prepared By: Sidra Javed

8. 6. NEMATICIDES: These are
the chemicals used to
control nematodes.
Nematodes are tiny hair-
like worms, many of which
live in the soil and feed on
plant roots.
Soil Fumigants are used to
control nematodes in the
soil.
Prepared By: Sidra Javed

9. 7. MOLLUSCICIDES: These are the chemicals used to
control snails and slugs.
The chemicals must be eaten by the pest to work.
Baits are often used to attract and kill snails or slugs in
the area.
Prepared By: Sidra Javed

10. 8. REPELLENT: It is a pesticide that
makes a site or food unattractive
to a target pest.
Insect repellents are available as
aerosols and lotions and can be
applied to skin, clothing or plant
to repel biting and nuisance
insects.
They can be sprayed or painted on
nursery crops, ornamental
plantings, orchards, vineyard,
vegetables and seeds.
Prepared By: Sidra Javed