Emerging virus diseases transmitted by whiteflies.

Area of Science:

• Plant pathology
• Entomology
• Agricultural science

Background:

• Emerging virus diseases pose a significant threat to global vegetable crop production.
• Many economically important viruses are transmitted by whiteflies (Aleyrodidae).
• Key vectors include Bemisia tabaci, which transmits begomoviruses, criniviruses, ipomoviruses, and others.

Purpose of the Study:

• To review the factors contributing to the emergence and spread of whitefly-transmitted virus diseases.
• To highlight the impact of these diseases on vegetable crops worldwide.
• To discuss the roles of viral genetic changes, vector behavior, and human activities.

Main Methods:

• Literature review of recent research on whitefly-transmitted viruses.
• Analysis of factors influencing disease emergence (viral mutation, vector population dynamics, trade).
• Synthesis of information on crop losses and disease epidemiology.

Main Results:

• Whitefly-transmitted viruses, particularly begomoviruses, cause substantial crop losses globally.
• Viral evolution (mutation, recombination) and vector adaptability are key drivers of disease emergence.
• Global trade facilitates the long-distance spread of viruses and their vectors.

Conclusions:

• Human activities, including global trade and agricultural practices, significantly contribute to the spread of these diseases.
• Understanding the interplay between viruses, vectors, and the environment is crucial for disease management.
• The future impact of climate change on these diseases remains an area for further investigation.