Natural Pest Control

Q. Natural pest controlling methods are useful to biodiversity. Comment on it.

[3 Marks]
[APSCERT]
[Crop Protection Management]

Q. Which of the following is the living factor that affects crop production?

1. Temperature
2. Rainfall
3. Salinity
4. Pests

Q. In California, citrus orchards were badly damaged by scale insects. To control these scale insects, ladybird beetles were released into these orchards. This type of pest control is known as:

1. Chemical control
2. Beetle control
3. Disease control
4. Biological control

Q. Mixed cropping system controls pests and crop diseases.

1. True
2. False

Q. Which of the following micro-organisms are used in the biological control of pests?

1. Trycoderma
2. Bacillus thuringiensis
3. Stem borer
4. Tungro virus

Q. Modern tool used for ploughing is________.

1. plough
2. sickle
3. hoe
4. cultivator

Q. Which of the following is used to preserve food grains at home?

1. Curry leaves
2. Spinach leaves
3. Tulsi leaves
4. Neem leaves

Q. Suggest some of the features of plants that will prevent insect and pest infestation.

Q. Some animals and birds used in biopest control are?

1. Snakes
2. All of the above
3. Lizards
4. Owls and Peacocks

Q. ___________ are let out in the fields to destroy pests selectively.

1. Birds
2. Insects
3. Ladybirds
4. All of the above