[No Grade-CPROT 1105] 1st sem 2021-2022

Answer each question using 80 to 100 WORDS ONLY.

1. During the plant disease familiarization, why is it important to know the

difference between symptoms and signs? (10 points)

Answer each question using 80 to 100 WORDS ONLY.

2. What would be the advantage of utilizing the Integrated Pest Management every

cropping season? (10 points)

Answer each question using 80 to 100 WORDS ONLY.

3. What is the importance of familiarizing the different mouthparts of an insect in

relation to pest identification/management? (10 points)

Answer each question using 80 to 100 WORDS ONLY.

4. Why is an agroecosystem called an unstable ecosystem? (10 points)

Answer each question using 80 to 100 WORDS ONLY.

5. In the food chain, what will happen to the organisms in each trophic level if we

apply insecticides? (10 points)

Answer each question using 80 to 100 WORDS ONLY.

6. What method of sampling is best used to identify vectors of plant diseases?

Provide an example and defend your answer. (10 points)

Answer each question using 80 to 100 WORDS ONLY.

7. What is the importance of assessing/monitoring pest density/damage before and

after the application of control? (10 points)

Answer each question using 80 to 100 WORDS ONLY.

8. Compare and contrast synthetic pesticides and botanical pesticides. (10 points)

Answer each question using 80 to 100 WORDS ONLY.

9. Explain why identification of the pests necessary developing an effective pest

control strategy. (10 points)

Answer each question using 80 to 100 WORDS ONLY.

10. Integrated Pest Management is an ecosystem- based strategy that focuses on

long term prevention of pests through different combination of techniques such

as biological, mechanical, and cultural control. Cultural control is a method that

use combination of agronomic practices, kindly discuss the function of bottom-up

approach and top-down approach in practices of IPM. (10 points)