Orange ( Citrus Citrus reticulate) Oil as an Insect Repellent on Mosquitoes ( Culicidae) Culicidae)
Orange oil contains an extract from the peel called d-limonene, which is rated as an insecticide. According to University of Florida's IFAS xtension, it !ills fleas, aphids, mites, fire ants, ho"se cric!ets, paper wasps and some some flies. #he active compo"nd compo"nd is a nerve toxin, which !ills insects on contact contact within min"tes. It evaporates $"ic!ly and leaves no resid"e. http%&&homeg"ides.sfgate.com&orange-o http%&&homeg" ides.sfgate.com&orange-oil-insecticide-rec il-insecticide-recipe-()*.html ipe-()*.html #he orange +itr"s sinens"s, sometimes !nown as sweet orange, is a val"ale fr"it not only for its ediility,, "t for the high $"antities of the s"stance limonene, sometimes called d-limonene, fo"nd in its ediility peel and /est. 0imonene 0imonene is a pesticide and is fo"nd in many commercial insect repellents. repellents.
Limonene
Oil derived from sweet orange peel has a *1 to *( percent content of limonene, which is lethal to fleas, fire ants and flies. 0imonene affects insects on contact, effectively s"ffocating them y damaging their respiratory systems. 2any insects s"ch as roaches, ants and silverfish do not care for the scent of orange oil and will avoid it. 3lacing its of orange peel or /est aro"nd the garden repels flies and mos$"itoes. 4"ing orange peel on the s!in is a home remedy for preventing mos$"ito ites.
http%&&homeg"ides.sfgate.com&sweet-o http%&&homeg" ides.sfgate.com&sweet-orange-nat"ral-"g-rep range-nat"ral-"g-repellent-5677 ellent-56776.html 6.html +8-Limonene is the isomer that is fo"nd in oranges. And "ns"rprisingly "ns"rprisingly it smells of oranges9 #he smell of +--limonene is similar to t"rpentine, altho"gh some people s"ggest it has a lemon like aroma. 2ost nat"rally occ"rring chiral compo"nds are fo"nd as a single optical isomer only. limon onen enee&li limon monen eneeh.htm www.chm.ris.ac."!&mot www.chm.ris.a c."!&motm& m& lim D-limonene
itr"s fr"its li!e oranges and lemons contain a compo"nd called d-limonene. :hile it has no effect on h"mans and pets, d-limonene drives away n"isance insects incl"ding fleas, flies and mos$"itoes. ;limonene is fo"nd in citr"s oil. &organ 17(&1>&organic-mos$"ito-repellen ic-mos$"ito-repellent-ingredients.h t-ingredients.html tml Botanical Insecticides
2any plants and minerals have insecticidal insecticidal properties? that is, they are toxic to insects. @otanical insecticides are nat"rally occ"rring chemicals +insect toxins extracted or derived from plants or minerals. #hey are also called natural insecticides . Organic gardeners will choose these insecticides, in some cases, over synthetic organic materials.
In general, they act $"ic!ly, degrade rapidly and have, with a few exceptions, low mammalian toxicity. 3rod"cts containing ingredients derived from plants +#ale 7 are considered pesticides . owever, prod"cts containing these active ingredients m"st e registered for "se y the nvironmental 3rotection Agency +3A and "sed in accordance with the provisions of the Federal Insecticide, F"ngicide and 4odenticide Act +FIF4A. In order to mar!et these prod"cts in #exas, they m"st also e registered y the #exas ;epartment of Agric"lt"re . Generic Name
Oral LD50
Dermal LD50
Signal Word
3yrethrins
7,=11-7,(11
B7,511
a"tion
4otenone
61-7,(11C
*)1->,111
a"tion
Saadilla
),111
D
a"tion
4yania
(1-7,=11
),111
a"tion
Eicotine
(1-61
(1
;anger
d-Limonene
B(,111
D
a"tion
0inalool
=,))1->,751
>,(5-5,>)
a"tion
Eeem
7>,111
D
a"tion
http://landscapeipm.tamu.edu/types-of-pest-control/chemical-control/organic/botanical/
