Ditylenchus members induce 'spikkels' in this crop
A. Onion
B. Potato
C. Narcissus
D. None of these
Answer: Option C
Solution(By Examveda Team)
Ditylenchus members induce 'spikkels' in Narcissus crop.Ditylenchus dipsaci is a plant pathogenic nematode that primarily infects onion and garlic. It is commonly known as the stem nematode, the stem and bulb eelworm, or onion bloat.
Symptoms of infection include stunted growth, discoloration of bulbs, and swollen stems. D. dipsaci is a migratory endoparasite that has a five-stage lifecycle and the ability to enter into a dormancy stage.
Infected plants show characteristic symptoms including stunted growth, yellow spots, leaf curl, and foliage lesions. Stems often have swollen regions called “spikkles.” As adult nematodes migrate into the scales of the bulb, and the scales become soft, grey, and loosely packed.
Related Questions on Agricultural Entomology
The reduviid bug Sycanus collaris is a predatory of
A. Coconut rhinoceros beetle
B. Red palm weevil
C. Both A and B
D. Termites
Join The Discussion