1
Msc student of Department Plant Protection, University of Tehran
2
Associate professor of Department Plant Protection, University of Tehran
3
Assistance Professor of Department of Plant Protection, College of Agriculture, Ferdowsi University of Mashhad)
Abstract
Intraguild predation (IGP) occurs when one predator species consumes another predator species with whom it also competes for shared prey. We studied IGP between different stages of Hippodamiavariegata and Aphidoletesaphidimyza in absence and presence of extraguild prey (Aphisgossypii) in Petri dish arena. In the absence of extraguild prey all stages of H. variegata (larva1, 2, 3, 4, female and male) consumed all stages of A. aphidimyza (egg, young larva and old larva). The most consumption of A.aphidimyza was recorded for old larva (48h) which reached to 100%. The minimum IGP recorded in combinations which contained eggs of A.aphidimyza. Interactions between H. variegata and A.aphidimyza in all combinations were asymmetric. In the presence of extraguild prey in density of 30, 60 and 120, There was no difference between observed and expected proportions of aphids eaten by both predators together but when the prey density reached at 240 aphids in each petri, IGP decreased.
HATAMI,N , ALLAHYARI,H and HOSSEINI,M . (2013). Simultaneous Use of Hippodamia variegata and Aphidoletes aphidimyza on Cotton Aphid, Aphis gossypii. BIOLOGICAL CONTROL OF PESTS AND PLANT DISEASES, 1(2), 87-94.
MLA
HATAMI,N , , ALLAHYARI,H , and HOSSEINI,M . "Simultaneous Use of Hippodamia variegata and Aphidoletes aphidimyza on Cotton Aphid, Aphis gossypii", BIOLOGICAL CONTROL OF PESTS AND PLANT DISEASES, 1, 2, 2013, 87-94.
HARVARD
HATAMI N, ALLAHYARI H, HOSSEINI M. (2013). 'Simultaneous Use of Hippodamia variegata and Aphidoletes aphidimyza on Cotton Aphid, Aphis gossypii', BIOLOGICAL CONTROL OF PESTS AND PLANT DISEASES, 1(2), pp. 87-94.
CHICAGO
N HATAMI, H ALLAHYARI and M HOSSEINI, "Simultaneous Use of Hippodamia variegata and Aphidoletes aphidimyza on Cotton Aphid, Aphis gossypii," BIOLOGICAL CONTROL OF PESTS AND PLANT DISEASES, 1 2 (2013): 87-94,
VANCOUVER
HATAMI N, ALLAHYARI H, HOSSEINI M. Simultaneous Use of Hippodamia variegata and Aphidoletes aphidimyza on Cotton Aphid, Aphis gossypii. BIOLOGICAL CONTROL OF PESTS AND PLANT DISEASES. 2013;1(2):87-94 (In Persian).
