Tag: biopesticide

Questions Related to biopesticide

Plant and animal quarantines are included in

  1. Regulatory methods

  2. Chemical methods

  3. Cultural methods

  4. Monitoring method


Correct Option: A
Explanation:

Integrated pests management is a method which uses the natural agents like the microbes and insects to control the population of other harmful pests and insects. Different methods are used for the control of the pests. When the plant and the animals are affected by the pests or disease, they are shifted to a place and quarantined to prevent the other plants and animals from getting affected. These are considered under the regulatory methods. 

Thus, the correct answer is option A. 

Action threshold is

  1. Acceptable pests level

  2. First line of defence

  3. Identification of pests

  4. Both A and C


Correct Option: A

Monitoring includes observation which is further classified into

  1. Identification and selection

  2. Inspection and identification

  3. Selection and inspection

  4. All of the above


Correct Option: D

Monitoring includes

  1. Identification of pests and their capability of potential damage

  2. Selection of best possible pest management methods

  3. Setting of economic threshold level

  4. All of the above


Correct Option: D

The practices like exclusion by screens, hand destruction are included in which of the following stage of integrated pests management?

  1. Biological method

  2. Mechanical method

  3. Regulatory methods

  4. Chemical methods


Correct Option: B
Explanation:

Integrated pests management is a method which uses the natural agents like the microbes and insects to control the population of other harmful pests and insects. Mechanical control is applied when the pests reach an unacceptable level. This method includes techniques like screens, beating with stick, bagging fruit, sieves, hand-picking, barriers, traps, vacuuming and tillage to disrupt breeding. 

Thus, the correct answer is option B.

The phenomenon of using a predator for controlling a pest is

  1. Biological control

  2. Genetic engineering

  3. Artificial control

  4. Confusion technique


Correct Option: A
Explanation:

Biological control is a method to control pest by using living microorganisms or its product. It is used as natural enemies like the predators, parasites, pathogens, and competitors to suppress and maintain populations of a target pest species (insects, mites, weeds, plant pathogens, and other pest organisms). This is the most widely used method in today's world for the control of pests. 

Thus, the correct answer is option A. 

Which is a microbial insecticide?

  1. Bacillus thuringiensis

  2. B. subtilis

  3. B. polymixa

  4. B. brevis


Correct Option: A
Explanation:

Bacillus thuringiensis are bacteria that act as biological insecticide.

Correct answer-A

The first bioherbicide developed in $1981$ was based on

  1. Phytophthora palmivora

  2. Phytophthora infestans

  3. Bacillus thuringenesis

  4. Azadirachta indica


Correct Option: A

A third generation pesticide is

  1. Pheromone

  2. Weedicide

  3. Juvenile hormone analogue

  4. Both A and B


Correct Option: C

A major pest eradicated through release of sterile males is

  1. Screw worm

  2. Aphids

  3. Ladybug

  4. Praying Mantis


Correct Option: A