DISEASES OF ROOTS MIGRATORY ECTOPARASITES
DISEASES OF ROOTS MIGRATORY ECTOPARASITES
DISEASES OF ROOTS MIGRATORY ECTOPARASITES
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Paratylenchus spp. = “pin” nematodes<br />
Life cycle and biology<br />
- Common in many native and agro-ecosystems.<br />
- J4's lack stylet and can survive in soil for long<br />
periods without feeding (1 year+)<br />
- Apparently require root exudate to stimulate<br />
final molt.<br />
-In Oregon can damage peppermint when in high<br />
numbers, can reach 100/g soil (=25,000/250 g soil)!<br />
High densities in fall can contribute to winter injury.
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