(redirected from defoliators)
Also found in: Thesaurus.


v. de·fo·li·at·ed, de·fo·li·at·ing, de·fo·li·ates
1. To deprive (a plant or a vegetated area, for example) of leaves.
2. To cause the leaves of (a plant or plants) to fall off, especially by the use of chemicals.
To lose foliage.

[Late Latin dēfoliāre, dēfoliāt- : Latin dē-, de- + Latin folium, leaf; see bhel- in Indo-European roots.]

de·fo′li·ate (-ĭt) adj.
de·fo′li·a′tion n.
de·fo′li·a′tor n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.defoliator - an insect that strips the leaves from plants
insect - small air-breathing arthropod
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The Para state is the largest palm oil producer in Brazil with an average productivity of six tonnes of oil/ha/year (Chia et al., 2009), but Lepidoptera defoliators as Opsiphanes invirae Hubner and Brassolis sophorae L.
elaeisis for use in biological control programs for urban ornamental defoliators depends on suitable alternative hosts.
These biotic communities are currently threatened by various species of defoliators and borers(Imbaultet al., 2013; Rossi et al., 2016).
Additionally, the majority of caterpillars are defoliators, making them readily available to gleaners like the Cerulean Warbler (MacArthur 1959; Holmes & Schultz 1988).
Although speculative, a possible explanation for the decline is an irruption of defoliators similar to the one documented over 19972002.
"Since moth worms only feed on mangrove leaves, they act as defoliators. They don't kill the entire mangrove tree," explained Conrado Marquez, acting chief of BCWERC.
This can be attributed to the higher content of azadirachtin, considered the most potent of the limonoids, or the tetranortriterpenoids with toxic activity to arthropods, because 90% of azadirachtin is concentrated in the neem cake after pressing the seeds (Brechelt & Fernandez, 1995), which may contribute to the control of defoliators. As such, lower [LC.sub.50] values means greater toxicity and, consequently, smaller amounts of the extract to kill 50% of the population that was exposed.