Which factor describes how prone a plant is to disease or insects?

Which factor describes how prone a plant is to disease or insects?

• A. Growth rate
• B. Sun exposure
• C. Cold hardiness
• D. Pest susceptibility

Answer: (D)

Pest susceptibility describes how prone a plant is to disease or insect attack. It reflects the plant’s inherent vulnerability based on genetics, tissue structure, and chemical defenses that influence whether pathogens or pests can invade and cause damage. A plant with higher susceptibility is more likely to be harmed and may require more protection, while one with low susceptibility resists or tolerates pests and diseases better, reducing damage and management needs. Growth rate concerns how fast a plant grows, affecting vigor and harvest timelines, but it doesn't determine how likely the plant is to be attacked. Sun exposure relates to light and heat stress, which can influence overall health and pest attraction indirectly, yet it doesn't measure the plant’s inherent vulnerability to pests or diseases. Cold hardiness is about surviving cold temperatures, not about susceptibility to pests or pathogens.

Pest susceptibility describes how prone a plant is to disease or insect attack. It reflects the plant’s inherent vulnerability based on genetics, tissue structure, and chemical defenses that influence whether pathogens or pests can invade and cause damage. A plant with higher susceptibility is more likely to be harmed and may require more protection, while one with low susceptibility resists or tolerates pests and diseases better, reducing damage and management needs.

Growth rate concerns how fast a plant grows, affecting vigor and harvest timelines, but it doesn't determine how likely the plant is to be attacked. Sun exposure relates to light and heat stress, which can influence overall health and pest attraction indirectly, yet it doesn't measure the plant’s inherent vulnerability to pests or diseases. Cold hardiness is about surviving cold temperatures, not about susceptibility to pests or pathogens.