Impact of<i>Spodoptera littoralis</i>(Boisd.) and<i>Agrotis ipsilon</i>(Hufn.) larval frass on oviposition of conspecific insects

Ahmed, A. A. I.; Hashem, Mohamed Y.; Adel, Manal M.; Mohamed, S. M.; Khalil, S.H. Shimaa

doi:10.1080/03235408.2012.749691

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…For adults, big jar (2 l) containing 5 pairs and a piece of cotton wet with honey solution (10%) for feeding was used. Insect rearing was performed in an incubator at 25 ± 2 °C and 65 ± 5% RH (Ahmed et al 2013).…”

Section: Black Cut Worm Agrotis Ipsilon (Hufn)mentioning

confidence: 99%

Identification and evaluation of isolated entomopathogenic fungus from Egyptian soil against the black cutworm larvae of Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae)

Ahmed

Khalil

Sahab

2022

Egypt J Biol Pest Control

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Background The black cutworm, Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae), is considered as one of the most destructive pests of many field crops in Egypt. Entomopathogenic fungi (EPF) have long been accepted as relatively safe alternatives to chemical insecticides. In the past decades, many researchers have compared the effective local isolates of EPF to the formulated product of the same fungus and reported that local isolates were more efficient than formulations when used against target insects. Results The present study discussed the pathogenic activity of local isolate after scientific characterization. Two insect species [Galleria mellonella L. and Agrotis ipsilon (Hufn.)] were used in this evaluation. The fungus was isolated from soil samples by trapping method, and fourth-instar larvae of Galleria were used to evaluate the pathogenicity of the isolate. The isolate was identified as Beauveria bassiana. Different levels of the fungus development depending on the test temperatures (20, 25, 30, 35 and 40 °C) were tested. Optimal growth of the isolate fungus was recorded at 25 °C. The corrected mortality rate for fourth-instar larvae of G. mellonella treated with the isolate spores at 6.4 × 105 spores/ml was (96%) after 10 days, while the mortality of last instar larvae of A. ipsilon was (48 and 100%) at the concentrations of 9.2 × 104 and 2.9 × 106 spores/ml, respectively, after 14 days compared to (24%) in the control. Both pupation and the sex ratio in adults were affected at different levels according to the concentration. The effect was also very clear in the increased rates of malformation in adults. Conclusion The EPF, B. bassiana, isolated from the soil, was highly effective against G. mellonella larvae in storage and A. ipsilon larvae in soil; therefore, it could be recommended as an alternative control agent for chemical pesticides.

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Section: Black Cut Worm Agrotis Ipsilon (Hufn)mentioning

confidence: 99%

Identification and evaluation of isolated entomopathogenic fungus from Egyptian soil against the black cutworm larvae of Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae)

Ahmed

Khalil

Sahab

2022

Egypt J Biol Pest Control

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“…and Agrotis ipsilon (Hufn.) (Lepidoptera: Noctuidae) have been evaluated for oviposition of some conspecific insects in Egypt (Ahmed et al 2013). These extracts are fractionated and identified using gas chromatography-mass spectrometry.…”

Section: Other Strategies Using Semiochemicalsmentioning

confidence: 99%

Journal of Plant Protection Research

El-Ghany¹

2019

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Semiochemicals are defined as informative molecules mainly used in plant-insect or insectinsect interactions as alternative or complementary components to insecticide approaches in different integrated pest management strategies. They are used to manipulate insect behaviour by affecting the survival and/or reproduction of insect pests for controlling their infestations on crops. The present review provides a basic summary of the utilization of semiochemicals for controlling insect pests. Two main topics were explored in this study. The first topic focuses on a description of semiochemicals and their types (pheromones and allelochemicals). Pheromones represent an intraspecific communication amidst members of the same species. Allelochemicals, produced by individuals of one species, modify the behavior of individuals of a different species (i.e. an interspecific effect). Allelochemicals include different informative molecules such as: allomones, kairomones, synomones, antimones and apneumones. The second topic focuses on the application of semiochemicals in IPM programs. Different semiochemicals are included in integrated pest management programs in various ways such as monitoring, mass trapping, attract-and-kill, push-pull, and disruption strategies. Pheromones are promising and can be used singly or in integration with other control strategies for monitoring and controlling insect pests in agricultural systems. For example, sex pheromones have been applied in mass trapping, disruption and attract-and-kill tactics in IPM programs.

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“…Extracts of non-hosts and macerated host plant material, larval and adult frass, as well as conspecific eggs are known to act as oviposition deterrents (Rothschild & Schoonhoven 1977;Prokopy 1981;Renwick & Radke 1985). In several noctuid species, larval frass deters oviposition in conspecific females (Renwick & Radke 1980;Hilker 1985;Hilker and Klein 1989;Ahmed et al 2012).…”

Section: Protection Of Potato Crop Against Phthorimaea Operculella (Zmentioning

confidence: 99%

Protection of potato crop againstPhthorimaea operculella(Zeller) infestation using frass extract of two noctuid insect pests under laboratory and storage simulation conditions

Ahmed

Hashem

Mohamed

et al. 2013

Archives Of Phytopathology And Plant Protection

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The oviposition deterrent effect of water extract of Spodoptera littoralis and Agrotis ipsilon larval frass on Phthorimaea operculella adult females was studied using two types of larval food "Natural host and Semi-artificial diet" under laboratory and storage simulation (semi-field) conditions. Extracted frass of fed larvae on semi-artificial diet showed complete oviposition deterrent effect at treatments with 4th, 5th and 6th instars of S. littoralis, also at treatments with 1st-3rd and 6th instars of A. ipsilon, while the same effect was observed when the larvae fed on castor oil leaves as a natural host only at treatment with frass extract of A. ipsilon 6th instar larvae. Presence of low amounts of phenols and flavonoids in water extract of A. ipsilon larval frass resulted in relatively more effect as oviposition deterrent to fertile adult females on treated oviposition sites, while the opposite effect was obtained in S. littoralis larval frass experiments. At semi-field experiments, the percentage reduction of laid eggs reached 100% after two days at treatments with frass extracts of 4th and 5th S. littoralis larval instars and A. ipsilon 6th instar larvae fed on semiartificial diet and/or castor oil leaves. Percentage reduction of laid eggs for untreated sacks reached 93.24 and 48.95% after 2 and 30 days, respectively, when placed between treated sacks, in comparison with the mean number of laid eggs for isolated control.

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Impact ofSpodoptera littoralis(Boisd.) andAgrotis ipsilon(Hufn.) larval frass on oviposition of conspecific insects

Cited by 5 publications

References 17 publications

Identification and evaluation of isolated entomopathogenic fungus from Egyptian soil against the black cutworm larvae of Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae)

Identification and evaluation of isolated entomopathogenic fungus from Egyptian soil against the black cutworm larvae of Agrotis ipsilon (Hufnagel) (Lepidoptera: Noctuidae)

Journal of Plant Protection Research

Protection of potato crop againstPhthorimaea operculella(Zeller) infestation using frass extract of two noctuid insect pests under laboratory and storage simulation conditions

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