Efficacy of ethylenesulphonyl fluoride against stored grain psocids, Liposcelis bostrychophila Badonnel and Liposcelis entomophila (Enderlein)

2020 ◽  
Vol 88 ◽  
pp. 101674
Author(s):  
Chunqi Bai ◽  
Judong Hou ◽  
Xu Guo ◽  
Xinyu Liu ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Stored Grain ◽  
Liposcelis Bostrychophila ◽  
Liposcelis Entomophila

scholarly journals Efficacy of Methoprene for Control of Five Species of Psocids (Psocoptera) on Wheat, Rice, and Maize

2010 ◽  
Vol 73 (12) ◽  
pp. 2244-2249 ◽  
Author(s):  
CHRISTOS G. ATHANASSIOU ◽  
FRANK H. ARTHUR ◽  
JAMES E. THRONE
Keyword(s):  
Growth Regulator ◽  
Insect Growth Regulator ◽  
Test Period ◽  
Progeny Production ◽  
Stored Grain ◽  
Insect Growth ◽  
Liposcelis Bostrychophila ◽  
Adequate Control ◽  
Application Rates ◽  
Liposcelis Entomophila

The insect growth regulator methoprene was evaluated for control of Liposcelis bostrychophila Badonnel, Liposcelis decolor (Pearman), Liposcelis entomophila (Enderlein), Liposcelis paeta Pearman (Psocoptera: Liposcelididae), and Lepinotus reticulatus Enderlein (Trogiidae) at application rates of 1, 5, and 10 ppm on maize, wheat, and rice. Methoprene did not completely suppress progeny production during the 40-day test period, but did cause a significant reduction in adult progeny in all psocid species at the application rates of 5 and 10 ppm. At 1 ppm, numbers of adults were reduced for all species on wheat and maize, but only for L. paeta on rice. Nevertheless, the numbers of nymphs present after 40 days generally were not reduced, relative to the controls. Methoprene applied at rates of 1 to 10 ppm to stored grain would not provide adequate control of psocids.

scholarly journals Prevalence and abundance of insect pests in stored pulses collected from two local markets of Dhaka city

2019 ◽  
Vol 8 (1) ◽  
pp. 75-82
Author(s):  
Tangin Akter ◽  
Shanjida Sultana ◽  
Mehjabin Rahman ◽  
Md Reaz Mahmud ◽  
Shefali Begum
Keyword(s):  
Lens Culinaris ◽  
Insect Pests ◽  
Sitophilus Oryzae ◽  
Green Gram ◽  
Callosobruchus Chinensis ◽  
Sitotroga Cerealella ◽  
Dhaka City ◽  
Stored Grain ◽  
Rhizopertha Dominica ◽  
Liposcelis Entomophila

Prevalence and abundance of stored grain insect pests in four varieties of pulses i.e. Lens culinaris, Pisum staivum, Cicer arietinum collected from two markets of Dhaka city were recorded. Nine species of insect pests, viz. Sitophilus oryzae, Tribolium castaneum, Callosobruchus chinensis, C. maculatus, Rhizopertha dominica, Oryzaephilus surinamensis, Liposcelis entomophila, Sitotroga cerealella, and Formica sp., were recorded throughout the study. The percentage of weight-loss was higher (7.54) in those pulses which were highly infested by pests. Highest pest population was observed during May to June (753). However, Sitotroga cerealella were found only in November to December of the study period. The maximum species richness (7) was observed in Green gram and Chickpeas samples, but the minimum species evenness was observed in Green gram (0.6969) and maximum in Red lentil (0.9886). Jahangirnagar University J. Biol. Sci. 8(1): 75-82, 2019 (June)

Bioefficacy of enhanced diatomaceous earth and botanical powders on the mortality and progeny production of Acanthoscelides obtectus (Coleoptera: Chrysomelidae), Sitophilus granarius (Coleoptera: Dryophthoridae) and Tribolium castaneum (Coleoptera: Tenebrionidae) in stored grain cereals

2017 ◽  
Vol 37 (04) ◽  
pp. 243-258 ◽  
Author(s):  
Charles Adarkwah ◽  
Daniel Obeng-Ofori ◽  
Vanessa Hörmann ◽  
Christian Ulrichs ◽  
Matthias Schöller
Keyword(s):  
Tribolium Castaneum ◽  
Diatomaceous Earth ◽  
Adult Mortality ◽  
Botanical Insecticides ◽  
Management Approach ◽  
Sitophilus Granarius ◽  
Progeny Production ◽  
Acanthoscelides Obtectus ◽  
Stored Grain ◽  
Plant Powders

Abstract Food losses caused by insects during postharvest storage are of paramount economic importance worldwide, especially in Africa. Laboratory bioassays were conducted in stored grains to determine the toxicity of powders of Eugenia aromatica and Moringa oleifera alone or combined with enhanced diatomaceous earth (Probe-A® DE, 89.0% SiO2 and 5% silica aerogel) to adult Sitophilus granarius, Tribolium castaneum and Acanthoscelides obtectus. Adult mortality was observed up to 7 days, while progeny production was recorded at 6–10 weeks. LD50 and LT50 values for adult test insects exposed to plant powders and DE, showed that A. obtectus was the most susceptible towards the botanicals (LD50 0.179% and 0.088% wt/wt for E. aromatica and M. oleifera, respectively), followed by S. granarius. Tribolium castaneum was most tolerant (LD50 1.42% wt/wt and 1.40% wt/wt for E. aromatica and M. oleifera, respectively). The combined mixture of plant powders and DE controlled the beetles faster compared to the plant powders alone. LT50 ranged from 55.7 h to 62.5 h for T. castaneum exposed to 1.0% M. oleifera and 1.0% DE, and 0.5% E. aromatica and 1.0% DE, respectively. Botanicals caused significant reduction of F1 adults compared to the control. Combined action of botanical insecticides with DE as a grain protectant in an integrated pest management approach is discussed.

scholarly journals Efficacy Assessment of Biosynthesized Copper Oxide Nanoparticles (CuO-NPs) on Stored Grain Insects and Their Impacts on Morphological and Physiological Traits of Wheat (Triticum aestivum L.) Plant

Biology ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 233
Author(s):  
Ali A. Badawy ◽  
Nilly A. H. Abdelfattah ◽  
Salem S. Salem ◽  
Mohamed F. Awad ◽  
Amr Fouda
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Triticum Aestivum L ◽  
Copper Oxide Nanoparticles ◽  
Rhyzopertha Dominica ◽  
Stored Grain ◽  
Stabilizing Agents ◽  
Cuo Nps ◽  
Vis Spectroscopy ◽  
Ft Ir

Herein, CuO-NPs were fabricated by harnessing metabolites of Aspergillus niger strain (G3-1) and characterized using UV–vis spectroscopy, XRD, TEM, SEM-EDX, FT-IR, and XPS. Spherical, crystallographic CuO-NPs were synthesized in sizes ranging from 14.0 to 47.4 nm, as indicated by TEM and XRD. EDX and XPS confirmed the presence of Cu and O with weight percentages of 62.96% and 22.93%, respectively, at varied bending energies. FT-IR spectra identified functional groups of metabolites that could act as reducing, capping, and stabilizing agents to the CuO-NPs. The insecticidal activity of CuO-NPs against wheat grain insects Sitophilus granarius and Rhyzopertha dominica was dose- and time-dependent. The mortality percentages due to NP treatment were 55–94.4% (S. granarius) and 70–90% (R. dominica). A botanical experiment was done in a randomized block design. Low CuO-NP concentration (50 ppm) caused significant increases in growth characteristics (shoot and root length, fresh and dry weight of shoot and root, and leaves number), photosynthetic pigments (total chlorophylls and carotenoids), and antioxidant enzymes of wheat plants. There was no significant change in carbohydrate or protein content. The use of CuO-NPs is a promising tool to control grain insects and enhance wheat growth performance.

scholarly journals Pathogenicity of Pakistani isolates of Steinernema bifurcatum and S. affine (Rhabditida: Steinernematidae) in management of stored grain pests Lasioderma serricorne and Tribolium castaneum (Coleoptera: Ptinidae, Tenebrionidae)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Tabassum Ara Khanum ◽  
Salma Javed
Keyword(s):  
Biological Control ◽  
Tribolium Castaneum ◽  
Biological Control Agent ◽  
Economic Loss ◽  
Research Area ◽  
Control Agent ◽  
Lasioderma Serricorne ◽  
Stored Grain ◽  
Insect Infestations ◽  
Stored Grain Pests

Abstract Background Stored grain products suffer a considerable economic loss due to insect infestations. The resistance of pests to insecticide, and residues on crops are produced by the application of insecticide. Nowadays, incremental necessity has been occurred to find out alternatives to chemicals. As biological control agents, entomopathogenic nematodes (EPNs) attract attention increasingly in the research area recently. Results The aim of the study was to evaluate the pathogenicity of Pakistani isolates Steinernema bifurcatum and S. affine against the stored grain pests, Tribolium castaneum and Lasioderma serricorne, under laboratory conditions. Suspensions of nematodes were applied at 4 different concentrations 0, 50, 100, and 200 IJs/ml and 3 variable temperatures 15, 30, and 45°C. Pathogenicity rate was recorded after 48 h of application. The larval stage is found more susceptible than the adult. At 200 IJs, S. bifurcatum showed high mortality of L. serricorne larva (92%) and T. castaneum larva (93%), whereas S. affine showed 90 and 95% mortality of L. serricorne and T. castaneum larva, respectively, at 200 IJs. The results revealed that both species of EPN were able to control and reproduce on L. serricorne and T. castaneum. Maximum mortality was recorded at 45 °C from S. bifurcatum whereas S. affine at 15 °C. Conclusions Therefore, S. bifurcatum and S. affine could be suggested as a biological control agent for hot and cold climatic zones, respectively.

scholarly journals Productivity, pathogenicity, host range, and spore mass-propagation of local strain of Mattesia sp. isolated from insect cadavers of certain stored grain pests in Egypt

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Ahlam Ahmed Alfazairy ◽  
Yasien Mohamed Gamal Zedan El-Abed ◽  
Hanan Mohamed Ramadan ◽  
Hedaya Hamza Karam
Keyword(s):  
Galleria Mellonella ◽  
Larval Mortality ◽  
Maximum Yield ◽  
Local Strain ◽  
Rhyzopertha Dominica ◽  
Stored Grain ◽  
Spore Yield ◽  
Long Term Storage ◽  
Spore Mass

AbstractAverage yields of Mattesia spores (spore productivity) had varied from a minimum yield (0.17 × 107 spores) for Laemophloeus turcicus adult to a maximum yield (7.46 × 107 spores) for Plodia interpunctella larva. Comparatively, the highest increase in Mattesia spore yield, recorded from P. interpunctella larva (7.46 × 107 spores) over the lowest one, estimated for L. turcicus adult (0.17 × 107 spores), was nearly 44-fold. The increase in Mattesia spore yields that calculated from the other hosts (P. interpunctella pupa or moth; Galleria mellonella larva; Rhyzopertha dominica adult; Sitophilus zeamais), over that estimated for L. turcicus adult, was less than 10-fold (6–9-fold). Based on the weight of 1 g of the insect host infected with Mattesia sp., small stored grain insect hosts (e.g. L. turcicus, S. zeamais, and R. dominica) seemed to achieve Mattesia spore yields more than the larger ones (e.g. P. interpunctella). The increase in spore yields over that used for the inoculum, based on an average of 25 P. interpunctella larvae per bioassay container, was ca. 2 to 31-fold. These results revealed that the Indianmeal moth, P. interpunctella, could serve as a potential host for mass propagating the isolated entomopathogenic protozoan, Mattesia sp. Besides Mattesia larval mortality, survivors of Mattesia infection suffered deformities and noticeable undersized pupae or adults than the control ones. Also, many copulated moths (ca.46%) were unable to become separated after copulation until they had died. Bioassay of siftings, obtained from L. turcicus-protozoan-infected stock cultures, was carried out in order to emphasize the suppressive potent role of such protozoan entomopathogens in long-term storage. With the highest tested concentration of the studied siftings (10%), mortality responses due to Mattesia infection ranged from 13 to 68% at 14–169 days post-treatment. The corresponding figures for Adelina infection were 7–42%.

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