Effect of soybean varieties on nutritional indices of beet armyworm Spodoptera exigua (Lepidoptera: Noctuidae)
نویسندگان
چکیده
منابع مشابه
Trans-regional migration of the beet armyworm, Spodoptera exigua (Lepidoptera: Noctuidae), in North-East Asia
The beet armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae), is a serious polyphagous insect pest worldwide. This species is known as a long-distance migrant, and previous studies on its migration have been mostly carried out in regions where it can overwinter. However, what pattern of seasonal migration this species exhibits in regions where it cannot overwinter (i.e., the 'summer b...
متن کاملComparative demographic parameters of beet armyworm, Spodoptera exigua (Lep.: Noctuidae) on four commercial sugar beet cultivars
The effects of four sugar beet cultivars (Anaconda, Rozier, Evelina and Flores) on the life table parameters of beet armyworm, Spodoptera exigua (Lep.: Noctuidae) were evaluated at 26 ± 1 °C, 60 ± 5% relative humidity and a photoperiod of 16: 8 h (L: D). The highest gross and net fecundity rates were obtained on Anaconda (2573.31 ± 27.78 and 1576.31 ± 16.65 eggs/female, respectively). The net r...
متن کاملcomparison of the feeding indices of the beet armyworm, spodoptera exigua (lepidoptera: noctuidae), on 10 commercial hybrids of corn
beet armyworm,spodoptera exigua (hübner) (lep.: noctuidae), is a polyphagous insect pest inflicting substantial economic damage to many crops including corn, cotton, beet, tomato, celery, lettuce and alfalfa. in this study the effect of 10 commercial hybrids of corn (sc700, dc370, sc704, sc260, sc500, keynes540, keynes410, ksc260, ksc400 and ksc301) on the beet armyworm was investigated through...
متن کاملLife cycle and fecundity of Spodoptera exigua (Lep.: Noctuidae) on five soybean varieties
چرخه‌ی زندگی و باروری کرم برگ‌خوار چغندرقند، Spodoptera exigua (Hübner)، روی پنج رقم سویا در شرایط آزمایشگاهی در دمای 1 ± 25 درجه‌ی سیلسیوس و رطوبت نسبی 5 ± 60٪ و دوره‌ی نوری 16 ساعت روشنایی و 8 ساعت تاریکی مورد بررسی قرار گرفت. طولانی‌ترین دوره‌ی رشد قبل از بلوغ در نرها و ماده‌ها روی رقم L17 (28/0 ± 17/30 و23/0 ± 63/29) مشاهده شد. همچنین، کوتاه‌ترین طول دوره‌ی رشد قبل از بلوغ نر و ماده به‌ترتی...
متن کاملRelationship of flight and reproduction in beet armyworm, Spodoptera exigua (Lepidoptera: Noctuidae), a migrant lacking the oogenesis-flight syndrome.
The beet armyworm, Spodoptera exigua, undertakes long-distance migration. We used flight mills to investigate the interaction between flight and reproduction in this species given the apparent absence of the oogenesis-flight syndrome. This syndrome, common in many migratory insects, is characterized by a suite of traits including migration during the pre-oviposition period followed by a switch ...
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ژورنال
عنوان ژورنال: African Journal of Agricultural Research
سال: 2013
ISSN: 1991-637X
DOI: 10.5897/ajar12.1687