Title: Nematode Biology and Management in Corn | Pioneer Seeds
Headings: Nematode Biology and Management in Corn
Nematode Biology and Management in Corn
Summary
Nematodes: An Overlooked Pest of Corn
Is Nematode Damage in Corn Becoming More Common?
Nematode Biology
Nematode Life Cycle
Crop Damage
Corn Nematode Feeding Habits
Visual Symptoms in Corn
Primary Corn Nematode Species
Sting Nematodes ( Belonolaimus spp.)
Needle Nematodes ( Longidorus spp.)
Lance Nematodes ( Hoplolaimus spp.)
Stubby-Root Nematodes ( Paratrichodorus minor)
Root-Knot Nematodes ( Meloidogyne spp.)
Dagger Nematodes ( Xiphinema spp.)
Lesion Nematodes ( Pratylenchus spp.)
Other Important Nematode Species
Spiral and Stunt Nematodes ( Heliocotylenchus spp. and Tylenchorhynchus spp. )
Ring, Sheath, and Pin Nematodes ( Criconemoides spp., Hemicycliophora spp., and Paratylenchus spp.)
Corn Cyst Nematode ( Heterodera zeae)
Soybean Cyst Nematode ( Heterodera glycines)
Reniform Nematode ( Rotylenchulus reniformis)
Nematode Population Survey
Nematode Sampling
Control Measures
Crop Rotation
Nematicide Seed Treatments
Sanitation

Content: This trait has earned them the reputation of “silent yield robbers” of corn. A lesion nematode, one of the more ubiquitous nematode pests of corn. Is Nematode Damage in Corn Becoming More Common? The capability of nematodes to damage corn has been known since the 1950s, however recent trends in farming practices may be increasing nematode numbers as well as their economic importance as corn pests. Reduced tillage is known to favor some nematode species, as is corn following corn. It is also likely that reduced use of carbamate and organophosphate insecticides for rootworm control in corn has caused an increase in nematode populations. These rootworm insecticides also have activity against nematodes, whereas newer alternatives such as pyrethroid insecticides and transgenic rootworm-protected corn do not. Additionally, our ability to sample and diagnose nematode damage has improved. Symptoms that may have previously been attributed to some other stress factor are now correctly being traced to nematodes. Nematode Biology
Nematodes are the most abundant multicellular organisms on earth, and are ubiquitous across a wide range of ecosystems.