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From the Illinois Pesticide Review
Vol. 2002, Issue 4 July, 2002

Systemic, Local Systemic, or Translaminar: Whata?™s the Difference?
Author: Raymond A. Cloyd

Many insecticides kill pests by contact activity. Insect or mite pests are either killed from direct contact during spray applications or by coming into contact with wet residues when moving around upon plant surfaces. Contact insecticides generally provide quick knockdown of target pests. Many insecticides from the older chemical classesa???including the organophosphates (that is, chlorpyrifos and diazinon), carbamates (methiocarb), and pyrethroids (bifenthrin, cyfluthrin, fluvalinate, fenpropathrin, and permethrin) have contact activity. However, some insecticides that have either systemic or translaminar (local) properties. In addition to insecticides, several fungicides are available with systemic activity, including mefenoxam (Subdue Maxx) and fosetyl-aluminum (Aliette). In fact, Aliette is the only fungicide available that moves both up and down the planta?™s vascular system. However, this article primarily concentrates on the action and use of systemic insecticides.
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