TREE DISEASES AND PESTS
COMMON TREE DISEASES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They reduce the area for photosynthesis.
|
|
|
They destroy cells.
|
|
|
They act as a vector, transferring viruses, bacteria and fungi between the plants.
|
|
|
They prevent plants from acquiring the water and minerals it needs.
|
Detailed explanation-1: -The best-characterized plant viral insect vectors are aphids, thrips, leafhoppers, planthoppers and whiteflies [2].
Detailed explanation-2: -While the spread of animal viruses is most often associated with direct contact or proximity to infected individuals, plant viruses are transmitted through wounds on the plant or via a vector, most often insects, fungi and nematodes that feed or infect the plant [3].
Detailed explanation-3: -Most plant viruses are transmitted by insect vectors that cause damage to the plant and create an entry point for pathogens, or that tap into the phloem to feed. Once inside, viruses use the handful of genes in their tiny genomes to orchestrate the plant cells’ machinery, while evading the plant’s defenses.