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Agriculture · Q47

Agricultural Entomology

Graduate and Post Graduate · Agriculture · question 47

Q47

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

A.
Sesamum phyllody ⇔ Leaf hopper
B.
Pigeonpea Sterility mosaic ⇔ Thrips
Answer
C.
Wheat streak mosaic ⇔ Eriophyid mite
D.
Bhindi VMV ⇔ White fly

Answer: Option B

Solution

Answer: Option B
Solution:
A. Sesamum phyllody ⇔ Leaf hopper
It is a destructive disease and it is transmitted by leafhoppers it is important to know the suitable time for cultivation of sesame and the effect of meteorological parameters on disease incidence for planning management strategies to get the optimum yield.

B. Pigeonpea Sterility mosaic ⇔ Thrips, are not correctly matched. It is not transmitted by thrips.
The causal agent of the disease is PPSMV, a virus with a segmented, negative-sense, single-stranded RNA genome, transmitted in a semi-persistent manner by an eriophyid mite Aceria cajani Channabassavanna.

C. Wheat streak mosaic ⇔ Eriophyid mite
Wheat streak mosaic virus is transmitted by the eriophyid mite, Aceria tosichella Keifer (Acari: Eriophyidae). Wheat is the preferred host for wheat curl mites and an excellent host for Wheat streak mosaic virus.

D. Bhindi VMV ⇔ White fly
Bhendi yellow vein mosaic virus (BYVMV) or okra yellow vein mosaic (OYVMV) is a viral disease caused by monopartite Begomovirus affecting okra plants. The virus is spread by whitefly.