Journal of Agricultural Science and Technology
Journal of Agricultural Science and Technology
JAST
Agriculture
http://jast.modares.ac.ir
1
admin
1680-7073
2345-3737
10.22034/jast
en
jalali
1396
12
1
gregorian
2018
3
1
20
2
online
1
fulltext
en
Synergistic Effects of Amitraz on Imidacloprid and Malathion against Cotton Aphid, <i>Aphis gossypii</i> (Hem: Aphididae)
For more than a century, chemical insecticides have been the most primary tool used by growers to control the cotton aphid, <em>Aphis gossypii</em>, as an important polyphagous pest worldwide. The application of insecticide mixtures through different modes of action is currently favored for resistance management of this pest. In this study, the synergistic interactions between amitraz with each of the two commonly used insecticides, i.e. imidacloprid and malathion, were studied using <em>A. gossypii</em> as target pest. The effects of amitraz combination on the activity of three detoxifying enzymes of cotton aphids were then evaluated using physiological assays. The synergistic effects of amitraz on imidacloprid were observed at all Lethal Concentrations (LC<sub>10</sub>-LC<sub>90</sub>), while, for malathion it was observed at concentrations higher than <em>LC<sub>30</sub></em>. The highest synergist ratio in the mixture of amitraz with malathion (LC<sub>90</sub>) and imidacloprid (LC<sub>10</sub>) was 1.5 and 3.09, respectively. The inhibition of Glutathione S-Transferase (GST) activity seems to be the main reason for amitraz to impose its synergistic effects.
Detoxifying enzymes,Insecticides,Lethal concentrations,Synergism
299
308
http://jast.modares.ac.ir/browse.php?a_code=A-23-13488-1&slc_lang=en&sid=23
A.
Shojaei
A.
Shojaei
100319475328460071416
100319475328460071416
No
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.
K.
Talebi Jahromi
K.
Talebi Jahromi
100319475328460071415
100319475328460071415
Yes
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.
V.
Hosseininaveh
V.
Hosseininaveh
100319475328460071414
100319475328460071414
No
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.
G.
Sabahi
G.
Sabahi
100319475328460071535
100319475328460071535
No
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, P. O. Box: 31587-77871, Karaj, Islamic Republic of Iran.