title: Biology and life table parameters of Brevicoryne brassicae (Hemiptera: Aphididae) on cauliflower cultivars.
abstract: In this article, the biology and fertility life table parameters of the cabbage aphid, Brevicoryne brassicae (L.) (Hemiptera: Aphididae), were studied on cauliflower leaves, Brassica oleracea var. botrytis (Brassicales: Brassicaceae), of the cultivars Smilla, Snow mystique, White cloud, Buris, Galiblanka, Snow crown, SG, and Tokita. This study was conducted under controlled conditions: 25 ± 2°C, 65 ± 5% relative humidity (RH), and 16:8 (L:D) h photoperiods. Statistical analysis showed that there was a significant difference (P < 0.05) between the different growth stages and the mean number of laid nymphs. Further, the maximum and minimum growth periods were observed on Galiblanka and Buris cultivars, respectively. The shortest nymphal instar growth period was observed on the Smilla cultivar (6.70 d), and the longest lifespan was seen on the White cloud (8.10 d). The Smilla cultivar (39%), in an adult emergence stage, and the SG (88%) revealed the lowest and highest rates of survival, respectively. Aphids reared on the Smilla cultivar were found to have increased due to the high intrinsic (r(m)) and finite (λ) rate of increase and the low doubling time (DT). The results indicated that the application of cultivars affecting adult reproductive parameters could be a good solution to cabbage aphid control management.
authors.affiliation: Department of Plant Protection, Faculty of Agricultural Sciences, Shahed University, Tehran, Iran.
authors.forename: Fatemeh
authors.initials: F
authors.lastname: Jahan
authors.affiliation: Department of Plant Protection, Faculty of Agricultural Sciences, Shahed University, Tehran, Iran habbasipour@yahoo.com.
authors.forename: Habib
authors.initials: H
authors.lastname: Abbasipour
authors.affiliation: Department of Plant Protection, Faculty of Agricultural Sciences, Shahed University, Tehran, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Askarianzadeh
authors.affiliation: Department of Plant Protection, Faculty of Agricultural Sciences, Shahed University, Tehran, Iran.
authors.forename: Golamhossein
authors.initials: G
authors.lastname: Hassanshahi
authors.affiliation: Department of Plant Protection, Faculty of Agricultural Sciences, Shahed University, Tehran, Iran.
authors.forename: Ayatallah
authors.initials: A
authors.lastname: Saeedizadeh
mesh_terms: D000818:Animals; D001042:Aphids / Q000254:growth & development / Q000502:physiology*; D001937:Brassica / Q000254:growth & development*; D005260:Female; D005298:Fertility; D020387:Food Chain; D007300:Insect Control; D009758:Nymph / Q000502:physiology; D011158:Population Growth; D012098:Reproduction
keywords: Brevicoryne brassicae; biological cycle; cauliflower; reproduction rate