tabaci B was introduced into China in the mid-1990's 17, but the first incidence of TYLCV was not recorded until 2006 in Shanghai 18, following the introduction and spread of the Q whitefly in 2003 19. However, modification of virus “behavior” within the host plant in response to attack by herbivorous insect vectors has been addressed only very recently 16.ī. The authors found that Tomato spotted wilt virus infected male thrips spent more time feeding than that of non-infected thrips. (2011) 15 demonstrated that plant-infecting viruses can directly alter vector feeding behavior. For example, a recent paper by Stafford et al. Virus-induced plant reactions can influence the behavior, physiology and dynamics of insect vectors in plant populations, sometimes causing behavioral changes in the vectors that favor virus transmission 14. Plant–pathogen–vector systems are characterized by complex direct and indirect interactions 12, 13. tabaci in a circulative manner and persist in the whitefly vector 8, 9, 10, 11. TYLCV is a single-stranded DNA (ssDNA) plant virus in the genus begomovirus, family Geminiviridae, that originated in the Middle East 6, 7. tabaci is the only known vector of Tomato yellow leaf curl virus (TYLCV), which seriously reduces tomato production and quality. tabaci, including the two most widely distributed and invasive biotypes, B and Q, hereafter referred to as B and Q whiteflies 5. tabaci is a complex of numerous genetically distinct populations, previously referred to as biotypes and now recognized as cryptic species 2, 3, 4. tabaci has become one of the most important pests in field crops worldwide 2. Because of its wide host range, rapid propagation and superior ability to transmit virus, B. B emisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) originated in the tropics and subtropics 1 and has rapidly spread as a consequence of the international trade in flowers and other nursery stock.

White fang of the leaf