PCA Nematodes Exam Newest 2026/2027 With Complete 200 Questions And 100%Correct Detailed Answers| Just Released!!

PCA Nematodes Exam Newest 2026/2027 With

Complete 200 Questions And 100%Correct Detailed

Answers| Just Released!!




Describe the relative size of plant feeding nematodes. -

ANSWER-Great variability. Range from 0.25 um to 12 mm

in length.




Heterodera spp. symptoms - ANSWER-Stunted plants.

Yellow foliage. Wilting plants. Severely reduced yields.

Cysts are visible to naked eye.




Heterodera spp. management - ANSWER-Crop rotation.

,Longidorus spp. - ANSWER-Needle nematodes




Longidorus spp. host range - ANSWER-Broad host range




Longidorus spp. life cycle - ANSWER-Migratory

ectoparaasite. Feeds at root tips. Males are rare,

reproduction likely by pathenogenesis.




Longidorus spp. symptoms - ANSWER-Galls formed at

root tips, devastating to seedlings




Longidorus management. - ANSWER-Preplant

nematicides, timing to plant when soil temps are below

22C

,Meloidogyne spp. - ANSWER-Root-knot nematode




Meloidogyne arenaria - ANSWER-Peanut root-knot

nematode




Meloidogyne chitwoodi - ANSWER-Columbian root-knot

nematode




Meloidogyne hapla - ANSWER-Northern root-knot

nematode




Meloidogyne incognita - ANSWER-Southern root-knot

nematode

, Meloidogyne javanica - ANSWER-Javanese root-knot

nematode




Meloidogyne naasi - ANSWER-Barley root-knot nematode




Meloidogyne spp. host range - ANSWER-Very broad host

range




Meloidogyne spp. life cycle - ANSWER-Sedentary

endoparasite. J2 infective. Males veriform, females

saccate. Males not required. Sexually dimorphic.