Pesticidi i fitomedicina 2011 Volume 26, Issue 3, Pages: 185-195
https://doi.org/10.2298/PIF1103185M
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Cyclic ketoenols: Acaricides and insecticides with a novel mode of action
Marčić Dejan (Institute of Pesticides and Environmental Protection, Laboratory of Applied Entomology, Belgrade)
Perić Pantelija (Institute of Pesticides and Environmental Protection, Laboratory of Applied Entomology, Belgrade)
Petronijević Slavka (Institute of Pesticides and Environmental Protection, Laboratory of Applied Entomology, Belgrade)
Prijović Mirjana (Institute of Pesticides and Environmental Protection, Laboratory of Applied Entomology, Belgrade)
Drobnjaković Tanja (Institute of Pesticides and Environmental Protection, Laboratory of Applied Entomology, Belgrade)
Modern crop protection industry puts great efforts into the investigation and
development of pesticides (insecticides, acaricides) with a novel mode of
action, primarily because of increasingly important problem of resistance of
pest organisms to pesticides. Resistance of many pest arthropod species
(insects and mites) to insecticides and/or acaricides became a global
phenomenon in the last decades. Therefore, pest management heavily relies on
constant introduction of novel active ingredients in use, i.e. on the
alternative use of a number of compounds with different modes of action in
order to save the longevity of newly developed products. Among pest
arthropods, according to the potential for resistance development and a
number of documented cases, spider mites (Acari: Tetranychidae), especially
species Tetranychus urticae and Panonychus ulmi, as well as certain species
of whiteflies and leaf aphids (Homoptra: Aleyrodidae, Aphididae) stand out.
In 2002, the company Bayer CropScience introduced spirodiclofen, a tetronic
acid derivative and the first cyclic ketoenol, acaricide with a wide spectrum
and a novel mode of action - inhibition of acetyl-CoA-carboxylase. Soon
after, spiromesifen was introduced, also a derivative of tetronic acid,
acaricide and insecticide intended for control of phytophagus mites and
whiteflies. Spirotetramat, a tetramic acid derivative, and the third member
of the ketoenol group, was recently commercialised as an insecticide
efficient against whiteflies, leaf aphids and other harmful Homoptera. In
this paper are presented the most significant properties of cyclic ketoenols,
aiming at pointing to the possibilities and prospects of their use, but also
to potential problems and limitations.
Keywords: Cyclic ketoenols, spirodiclofen, spiromesifen, spirotetramat
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