Chapter 8

Question 1

describes the m process of providing plants
the conditions that will make them free of weeds, pests
and diseases.

Answer 1

Crop protection

Question 2

Modification of cultural practices such as time of planting
and crop rotation.

Answer 2

Cultural control

Question 3

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

Answer 3

Biological control

Question 4

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.

Answer 4

Ecological control

Question 5

describes the process of providing plants
the conditions that will make them free of weeds, pests
and diseases

Answer 5

Crop protection

Question 6

Application of chemicals to control weeds, pests and diseases

Answer 6

Chemical control

Question 7

Use of flame for the selective burning of weeds in crops whose stem is
not injured by a short exposure to intense heat.

Answer 7

Flame control

Question 8

Use of tools, implement and machines to reduce or eliminate weeds
and insects such as in land preparation, cultivation and weeding.

Answer 8

Mechanical control

Question 9

Breeding and planting of pest resistant varieties

Answer 9

Physiological control

Question 10

Percentage of weeds removed/destroyed per unit area

Answer 10

Weeding index

Question 11

Implement used to remove/destroy the weeds from an agricultural land

Answer 11

Weeder

Question 12

Unwanted plants growing in a field competing with the main crop for nutrients, moisture and
sunlight

Answer 12

Weeds

Question 13

A type of weeder with rectangular, triangular or crescent shapes with cutting edges sharpened and hardened

Answer 13

Blade type weeder

Question 14

Type of weeder with straight, curved, round or square cross-section steel rod with sharpy pointed and hardened soil engaging end

Answer 14

Tine type weeder

Question 15

Type of weeder with curve or straight spikes or puddles radially attached to a common axle, which rotate to uproot and bury weeds

Answer 15

Rotary type weeder

Question 16

A type of weeder which utilize either blade or time type of soil working parts with short, medium, and long handle

Answer 16

Hand-held weeder

Question 17

A type of weeder which utilizes either blade, tine type or rotary soil working parts for dry and wet field weeding.

Answer 17

Push-type weeder

Question 18

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.

Answer 18

Tractor-mounted weeder

Question 19

A type of rotary weeder driven by it’s own engine for wet field weeding

Answer 19

Power weeder

Question 20

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.

Answer 20

Animal-drawn weeder

Question 21

Sprayer which is operated manually with a lever and can
be carried on the back of an operator for spraying.

Answer 21

Backpack sprayer

Question 22

Component of the sprayer that evens out the fluctuations
of the fluid pressure and induces more inform flow of the
sprayed liquid.

Answer 22

Pressure chamber

Question 23

Component of the sprayer that evens out the fluctuations
of the fluid pressure and induces more inform flow of the
sprayed liquid.

Answer 23

Pressure chamber

Question 24

Maximum allowable volume of the liquid to fill the sprayer
tank, when equipped with all its internal mounting.

Answer 24

Tank capacity

Question 25

The sprayer shall withstand standard drop test when tested
in accordance with PAES ___.

Answer 25

PAES 113