DENDROLOGY

TREE DISEASES AND PESTS

COMMON TREE DISEASES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of the following statements is true?
A
Resistant varieties of plants resist all diseases common to the species
B
a plant bred for specific disease resistance will never get that disease
C
a disease does not readily infect resistant plants unless factors are favorable
D
resistant plants can develop immunity to a disease after they are exposed to it
Explanation: 

Detailed explanation-1: -Relative to a susceptible plant, disease resistance is the reduction of pathogen growth on or in the plant (and hence a reduction of disease), while the term disease tolerance describes plants that exhibit little disease damage despite substantial pathogen levels.

Detailed explanation-2: -Final answer: Rat traps do not cause disease in plants.

There is 1 question to complete.