Chapter 8 Flashcards
describes the m process of providing plants
the conditions that will make them free of weeds, pests
and diseases.
Crop protection
Modification of cultural practices such as time of planting
and crop rotation.
Cultural control
Introduction of certain insects which feed on pests,
application of chemosterilants to render the male sterile,
or planting of certain plants whose odor drive pest away
Biological control
Change in the environment of the crop and the pest which
favors the survival of the crop such as flooding to kill
insects and weeds.
Ecological control
describes the process of providing plants
the conditions that will make them free of weeds, pests
and diseases
Crop protection
Application of chemicals to control weeds, pests and diseases
Chemical control
Use of flame for the selective burning of weeds in crops whose stem is
not injured by a short exposure to intense heat.
Flame control
Use of tools, implement and machines to reduce or eliminate weeds
and insects such as in land preparation, cultivation and weeding.
Mechanical control
Breeding and planting of pest resistant varieties
Physiological control
Percentage of weeds removed/destroyed per unit area
Weeding index
Implement used to remove/destroy the weeds from an agricultural land
Weeder
Unwanted plants growing in a field competing with the main crop for nutrients, moisture and
sunlight
Weeds
A type of weeder with rectangular, triangular or crescent shapes with cutting edges sharpened and hardened
Blade type weeder
Type of weeder with straight, curved, round or square cross-section steel rod with sharpy pointed and hardened soil engaging end
Tine type weeder
Type of weeder with curve or straight spikes or puddles radially attached to a common axle, which rotate to uproot and bury weeds
Rotary type weeder
A type of weeder which utilize either blade or time type of soil working parts with short, medium, and long handle
Hand-held weeder
A type of weeder which utilizes either blade, tine type or rotary soil working parts for dry and wet field weeding.
Push-type weeder
A type of weeder in which soil working parts are mounted on a flame or tool bar and pulled by either two or four wheel tractor for dry field weeding.
Tractor-mounted weeder
A type of rotary weeder driven by it’s own engine for wet field weeding
Power weeder
A type of weeder in which soil working parts are mounted on a frame or tool bar and pulled by an animal for dry field weeding.
Animal-drawn weeder
Sprayer which is operated manually with a lever and can
be carried on the back of an operator for spraying.
Backpack sprayer
Component of the sprayer that evens out the fluctuations
of the fluid pressure and induces more inform flow of the
sprayed liquid.
Pressure chamber
Component of the sprayer that evens out the fluctuations
of the fluid pressure and induces more inform flow of the
sprayed liquid.
Pressure chamber
Maximum allowable volume of the liquid to fill the sprayer
tank, when equipped with all its internal mounting.
Tank capacity
The sprayer shall withstand standard drop test when tested
in accordance with PAES ___.
PAES 113
