any undesirable organism that is injurious to plants, either directly (ex.
insects, or fungi)
or indirectly (ex. weeds).
PREREQUISITES OF PEST DAMAGE OR INFECTION
Resistance - this is the "ideal"
of pest damage control
- usually governmentally imposed
- wash pots and tools, hoses off ground, propagate clean plants, etc.
Control - bug traps, screens, sticky boards, etc.
Control - the use of one organism to control another organism.
1) Bacillus thuringiensis - a bacterium that controls caterpillars
2) grass carp (or white amour) - a fish that eats submerged aquatic
3) predaceous mites - eat other mites and small insects
4) parasitic wasps - lay eggs inside other insects
5) Trichoderma - a fungus that controls other fungi
6) allelopathy - secretion of chemicals
by one plant that retards the growth of surrounding
used to control pests; ex. fungicide, bactericide, insecticide, miticide,
Modes of Action
1) Contact Pesticide (insects and
2) Systemic Pesticide (insects and weeds)
3) Stomach Poison (insects
Pest Management (IPM) -
the use of all strategies of pest damage control (resistance, cultural,
biological, environmental and chemical) to minimize the economic impact