Question:
Peanut bud necrosis virus (PBND) is transmitted by:
(A) Aphis gossypii and Myzus persicee
(B) Aphis maydis and Toxoptera graminum
(C) Thrips palmi and Frankimella schultzei
(D) Planococcoides njalensis and Pentalonia nigronervosa
Choose the correct answer from the options given below:
Peanut bud necrosis virus (PBND) is transmitted by:
(A) Aphis gossypii and Myzus persicee
(B) Aphis maydis and Toxoptera graminum
(C) Thrips palmi and Frankimella schultzei
(D) Planococcoides njalensis and Pentalonia nigronervosa
Choose the correct answer from the options given below:
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Thrips transmit viruses in a persistent-propagative manner - the virus replicates within the insect vector.
Updated On: Jul 2, 2026
- (A) and (B) only
- (B) and (D) only
- (C) only
- (A) and (D) only
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The Correct Option is C
Approach Solution - 1
PBND is transmitted by thrips species (Thysanoptera)
Primary vectors:
Thrips palmi (most efficient)
Frankimella schultzei (secondary vector)
Aphids and mealybugs cannot transmit this tospovirus
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Approach Solution -2
Virus-group elimination:
Peanut bud necrosis disease is caused by a tospovirus, and tospoviruses as a group are transmitted exclusively by thrips species, never by aphids or mealybugs. This immediately rules out combination (A), which lists aphid species (Aphis gossypii, Myzus persicae), combination (B), which lists other aphid species (Aphis maydis, Toxoptera graminum), and combination (D), which lists mealybug or related homopteran species (Planococcoides njalensis, Pentalonia nigronervosa). Only combination (C), Thrips palmi and Frankiniella schultzei, consists of genuine thrips species capable of transmitting this tospovirus.
Hence, the correct answer is (C) only.
Peanut bud necrosis disease is caused by a tospovirus, and tospoviruses as a group are transmitted exclusively by thrips species, never by aphids or mealybugs. This immediately rules out combination (A), which lists aphid species (Aphis gossypii, Myzus persicae), combination (B), which lists other aphid species (Aphis maydis, Toxoptera graminum), and combination (D), which lists mealybug or related homopteran species (Planococcoides njalensis, Pentalonia nigronervosa). Only combination (C), Thrips palmi and Frankiniella schultzei, consists of genuine thrips species capable of transmitting this tospovirus.
Hence, the correct answer is (C) only.
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