Causes of Pest Outbreak

Question 1

• High Reproductive Rates
• Lack of Natural Enemies

Answer 1

Biological Factors

Question 2

• Monoculture Farming
• Misuse of Pesticides
• Destruction and Habitat
• Global Trade and Travel

Answer 2

Human-induced factors

Question 3

Tremendous increase in pest populations following poor insecticide application or good pest control at the time of treatment. 
Ex: Brown Planthopper in Rice Field (1970s resurgence)

Answer 3

Resurgence