Which of the following pair is not correctly matched in the term of Disease and Insect (Vector)?

Solution(By Examveda Team)

A. Citrus greening ⇔ Psyllid
Citrus greening is spread by a disease-infected insect, the Asian citrus psyllid (Diaphorina citri Kuwayama or ACP), and has put the future of America's citrus at risk.
B. Citrus tristeza virus ⇔ Citrus aphid
Citrus tristeza virus (CTV) is transmitted by several aphid species in a semi-persistent manner with Toxoptera citricida, the brown citrus aphid (BrCA), being the most efficient.
C. Pine apple root wilt ⇔ Mealy bug
Pineapple wilt appears to be influenced by age of the plants: young plants develop symptoms in 2 - 3 months; older plants take up to a year. The disease is associated with the mealybugs.
D. Groundnut rosette virus ⇔ Butterflies. It is not ccorrectly matched as butterfly is not vector of this virus.
Groundnut rosette virus (GRV) is a peanut pathogenic virus found in Sub-Saharan Africa. It is transmitted between plants by insect vectors such as the groundnut aphid (Aphis craccivora).