Technology of the European Corn Borer (Ostrinia nubilalis Hbn) Mass Rearing, Successive Generations, in Controlled Conditions, at NARDI FUNDULEA

Georgescu, Emil; Burcea, Mariana; Cană, L.

doi:10.15835/buasvmcn-agr:11186

Cited by 5 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A standard, semi-artificial diet (Georgescu et al, 2015) was used to sustain ECB larval development in the laboratory. Transparent rearing plastic boxes (6 × 14 × 20 cm) with tight-fitting lids were used as larval rearing containers.…”

Section: Laboratory Rearing Of European Corn Borermentioning

confidence: 99%

Effect of gamma irradiation on F1 generation and competitive ability of Phyllocnistis citrella and Ostrinia nubilalis, and evaluation of the sterile insect release ratio on plant infestation in field cages

Osouli

Atapour

Ahmadi

2023

Entomologia Exp Applicata

View full text Add to dashboard Cite

Citrus leafminer (CLM), Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae), and European corn borer (ECB), Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), are two key pests of young citrus and maize plants in Iran, respectively. In this study, the effects of sub‐sterilizing doses of gamma radiation (100–250 Gy for CLM, 90–180 Gy for ECB) on the biological and reproductive parameters of F1 progeny from irradiated males were determined. The results indicated that males irradiated at doses of ≥200 and ≥150 Gy produced highly sterile F1 descents for CLM and ECB, respectively. No adverse effects of radiation doses applied to males were observed on the F1 pupal emergence for both species, nor on the adult longevity of male and female ECB moths. However, the life span of CLM F1 male and female adults decreased with increasing doses. The sex ratio of emerged adults of F1 progeny from irradiated males was skewed towards males with increasing doses; the proportion of males to all emerged adults reached 0.52 and 0.54 at doses of 250 and 150 Gy for CLM and ECB, compared to 0.44 and 0.49 in the controls, respectively. The competitiveness index of irradiated and F1 males of both species fluctuated in acceptable ranges and in general F1 males were stronger competitors than their irradiated male parents. The results of the field cage experiments showed that the larval infestation in all cages including the released irradiated CLM and ECB moths decreased compared to the control treatment – the percentage of damaged leaves and stems in the cages with ratios of 20:1 and 7:1 irradiated‐to‐normal insects (highest ratios assayed) reached half and one‐third of the control for CLM and ECB, respectively.

show abstract

Section: Laboratory Rearing Of European Corn Borermentioning

confidence: 99%

Effect of gamma irradiation on F1 generation and competitive ability of Phyllocnistis citrella and Ostrinia nubilalis, and evaluation of the sterile insect release ratio on plant infestation in field cages

Osouli

Atapour

Ahmadi

2023

Entomologia Exp Applicata

View full text Add to dashboard Cite

show abstract

“…According to their results O. nubilalis density ranged from 0.2 to 3.2 larvae/plant, and disparities of larvae per plant cannot be evinced in samples originating from the edge and centre of the acreage. Georgescu et al (2015) pointed out that yearly climate has a significant impact on the number of O. nubilalis larvae per plant. The distribution and number of larvae were significantly affected by the weight of maize ears and the quantity of the basic nutrient components (raw protein, fat and starch) incorporated in the kernel.…”

Section: Discussionmentioning

confidence: 99%

Journal of Plant Protection Research

Sándor,

Holló

2019

View full text Add to dashboard Cite

Ecology and life characteristics of overwintering larvae of the European corn borer (Ostrinia nubilalis Hbn.) (Lep.: Crambidea) are partly unexplored due to their hidden lifestyle. In plant protection research the best way to study these phenomena is to apply less used, non-destructive, in vivo methods. The objective of our CT survey was to examine the factors influencing the location of the overwintering O. nubilalis larvae in maize stalks. The findings obtained by CT-analysis can be used for monitoring the presence and location of O. nubilalis larvae in the stalk, as well as both their displacement and movement. Our results showed that both the location and the distance from the brace root of O. nubilalis larvae were significantly influenced by the sampling time, the number of larvae per plant, the stalk diameter and finally the prevailing temperature. The location of the larvae situated nearest to the brace roots (first larvae) was significantly lower in stalks containing several larvae, than those where only a single larva was found in the stalk. The thickness of stalks was related to the simultaneous presence of more larvae, and to the ground level position of the first larvae. These overwintering larvae were located closer to the brace root (and to the soil), possibly because of having moved downwards inside the stalk, where the temperature is slightly milder than in the upper part of the stalk.

show abstract

“…), Gryllotalpa gryllotalpa Linnaeus, Schizaphis graminum (Rondani), and Phyllotreta vittula (Redtenbacher). The corn borer (Ostrinia nubilalis) is the main pest of maize crops in Transylvania, one of its favorable areas [57,58], which, in certain climatic conditions and non-compliance agrophytotechnical measures, can cause significant damage [59]. Due to the climatic conditions of May-June-July, which have changed in recent years [60] and no longer fit into the pattern of recent decades, the drill attack can be carried out with a different intensity from one year to another, so maize hybrids, tolerant to pest attacks, may become sensitive in favorable years [61].…”

Section: Climate Conditions and The Impact On Maize Cultivation Techn...mentioning

confidence: 99%

Research on the Interdependence Linkages between Soil Tillage Systems and Climate Factors on Maize Crop

Chețan¹,

Rusu

Călugăr³

et al. 2022

Land

View full text Add to dashboard Cite

The experimental zone of the Transylvanian Plain is characterized by some particular problems for the maize crop due to an oscillating thermal regime; relatively shorter frost-free interval; climatic diversity; mixed relief; and soils with different peculiarities, even from one plot to another. This paper presents the results of research conducted during 2016–2021 regarding the influence of four soil tillage system and two fertilizer doses on emergences and maize yield, in the pedoclimatic conditions of the hilly area of the Transylvanian Plain. In all experimental years, a faster maize emergence was observed in the conventional-plow and minimum tillage—chisel compared to minimum tillage-disk and no-tillage. In a conventional system (control), the yield achieved (7603 kg ha-1) was close to the minimum tillage—chisel system (7529 kg ha-1), and higher than the minimum tillage-disk (6391 kg ha-1) and no-tillage (5178 kg ha-1). The beneficial effect of additional fertilization with CAN 27 (granular nitrogen fertilizer containing magnesium and calcium from dolomite) is found in a better development of plants and on the increase of yield with 356 kg ha-1 compared to the variant with basic fertilization. The yield difference between the two hybrids included in the experiment is insignificant (under 100 kg ha-1).

show abstract

Technology of the European Corn Borer (Ostrinia nubilalis Hbn) Mass Rearing, Successive Generations, in Controlled Conditions, at NARDI FUNDULEA

Cited by 5 publications

References 6 publications

Effect of gamma irradiation on F1 generation and competitive ability of Phyllocnistis citrella and Ostrinia nubilalis, and evaluation of the sterile insect release ratio on plant infestation in field cages

Effect of gamma irradiation on F1 generation and competitive ability of Phyllocnistis citrella and Ostrinia nubilalis, and evaluation of the sterile insect release ratio on plant infestation in field cages

Journal of Plant Protection Research

Research on the Interdependence Linkages between Soil Tillage Systems and Climate Factors on Maize Crop

Contact Info

Product

Resources

About