Exam 4 PLPA

nematodes

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Terms in this set (8)

--Fumigant nematicides (1-3 dichloropropene and metam sodium which degrades in the soil to release isothiocyanate).
--Non-fumigants - aldicarb, oxamyl (carbamates) and phenamiphos.

decrease vector populations

-immobile
-in native ecosystems, disease limited by genetic diversity.
-in cultivated monoculture: epidemics are more common due to genetic uniformity
-two defense strategies: preformed and inducible

Two plant defense strategies

preformed
inducible

strategies used by different pathogens

-necrotrophy
-biotrophy
-hemibiotrophy

plant cells are killed

plant cells remain alive

initially cells remain alive but killed later in infection