Field Evaluation of Different Insecticides for the Control of Mustard Aphid, Lipaphis erysimi (Kalt.) (Homoptera: Aphididae) on Mustard Crop

2001 ◽  
Vol 2 (1) ◽  
pp. 66-67
Author(s):  
Muzaffar A. Talpur . ◽  
Imtiaz A. Nizamani .
Keyword(s):  
Field Evaluation ◽  
Lipaphis Erysimi ◽  
Mustard Aphid ◽  
Mustard Crop

scholarly journals Preying capacity of different established predators of the aphid Lipaphis erysimi (Kalt.) infesting rapeseed-mustard crop in laboratory conditions

2013 ◽  
Vol 49 (No. 2) ◽  
pp. 84-88 ◽  
Author(s):  
K. Singh ◽  
N.N. Singh
Keyword(s):  
Coccinella Septempunctata ◽  
Juvenile Stage ◽  
Lipaphis Erysimi ◽  
Mustard Aphid ◽  
Larval Stages ◽  
Laboratory Conditions ◽  
Mustard Crop ◽  
Cropping Seasons ◽  
Syrphid Flies

Experiments on the preying capability of different stages of larvae of coccinellid and syrphid flies on the mustard aphid, Lipaphis erysimi (Kalt.), were conducted in a laboratory during the winter cropping seasons of 2009–2010 and 2010–2011. Results revealed that grubs of the Coccinella septempunctata Linn. preyed the highest number of mustard aphids (average 61.42 aphids/day) followed by Syrphus confrater Wied (34.81 aphids/day), Syrphus balteatus Deg. (32.26 aphids/day) and Ischiodon scutellaris Fab. (27.76 aphids/day) during their larval span. Among the larval stages of the coccinellid and syrphid predators, it was also analysed that the last juvenile stage of the predators was proved the mightiest devourer against the aphid L. erysimi. These predators could be used effectively for the management of L. erysimi on rapeseed-mustard crop.

Biology, Predatory Potential, Life Table, and Field Evaluation of Propylea dissecta (Coleoptera: Coccinellidae), Against Lipaphis erysimi (Hemiptera: Aphididae) on Broccoli

2019 ◽  
Vol 113 (1) ◽  
pp. 88-97 ◽  
Author(s):  
Thangavel Boopathi ◽  
Soibam Basanta Singh ◽  
Sudip Kumar Dutta ◽  
Vishambhar Dayal ◽  
Akoijam Ratankumar Singh ◽  
...  
Keyword(s):  
Life Table ◽  
Coccinella Septempunctata ◽  
Field Evaluation ◽  
Reproductive Rate ◽  
Lipaphis Erysimi ◽  
Adult Males ◽  
Mustard Aphid ◽  
Net Reproductive Rate ◽  
Larval Stages ◽  
Propylea Dissecta

Abstract Propylea dissecta (Mulsant) (Coleoptera: Coccinellidae) is one of the most promising ladybird beetle against many sucking pests. Predation rates, developmental biology, life table, and field assessment of this ladybird were examined against mustard aphid, Lipaphis erysimi (Kalt.) (Hemiptera: Aphididae), on broccoli. Data on the life history were collected at 23 ± 1°C and 70 ± 1% RH and were evaluated using the two-sex, age-stage life table. Results showed that the two-sex, age-stage life table-based net reproductive rate (R0) was 11.264 ± 6.197 offspring. The adult females lived longer (33.8 ± 2.356 d) than the adult males (32.2 ± 0.841 d). The fourth instar consumed most of L. erysimi (113.97 ± 5.76) compared to the other larval stages of the predator. Male (1,821) and female (2,673) consumed more aphids than larvae. The net consumption rate was 741.78 ± 89.91 aphids. Other aphidophagous predators such as Coccinella septempunctata L., Micraspis discolor (F.), Coccinella transversalis (F.), and syrphid (Diptera: Syrphidae) were also noted in broccoli. Our research showed that inoculative release of 150 or 200 adults per 1,000 m2 for two times on broccoli achieved a significant decrease in aphids L. erysimi and Brevicoryne brassicae L. (Hemiptera: Aphididae) (>95%). The release rate of 150 adults per 1,000 m2 for two times may, therefore, be recommended to manage the aphid population on broccoli.

scholarly journals Scanning electron microscopic studies of Beauveria bassiana against Lipaphis erysimi Kalt

2017 ◽  
Vol 9 (1) ◽  
pp. 461-465
Author(s):  
Tanvi Sharma ◽  
Neelam Joshi ◽  
Anu Kalia
Keyword(s):  
Beauveria Bassiana ◽  
Lipaphis Erysimi ◽  
Electron Microscopic ◽  
Time Intervals ◽  
Mustard Aphid ◽  
Commercial Formulation ◽  
Fungal Isolates ◽  
Scanning Electron Microscopic ◽  
Microscopic Studies ◽  
Scanning Electron

This work was aimed to identify the LC50 of the indigenous fungal isolates for controlling L. erysimi infesta-tion in mustard aphid besides to probe the mechanism of action of the local isolates and comparison of the efficacy with the reference culture and commercial formulation ‘Mycojaal’. Three isolates of entomopathogenic fungi Beauveria bassiana were tested for infection on nymph of Lipaphis erysimi Kalt. using scanning electron microscopy (SEM) to record any variation. The SEM revealed adhesion of spores of B.bassiana followed by penetration of L.erysimi nymph surface. It was observed that all Beauveria isolates showed little variation with respect to penetration and adhesion at different time intervals. Further, lethal concentration (LC50) values of B. bassiana isolates against L. erysimi was recorded and was lowest (0.05x107 spores/ml) in B. bassiana MTCC 4495 and highest (0.11.X107 spores/ml) was recorded in native isolate F10 after 120 hours of treatment. The study has established the need for the isolation and evaluation of the indigenous Beauveria isolate. Moreover, it also exhibited the efficacy of the reference and commercially available biocontrol agents.

scholarly journals Efficacy of Biorational Compounds against Mustard Aphid (Lipaphis erysimi Kalt.) and English Grain Aphid (Sitobion avenae Fab.) under Laboratory Conditions in Nepal

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Dipak Khanal ◽  
Salu Maharjan ◽  
Jamuna Lamichhane ◽  
Pritika Neupane ◽  
Srijana Sharma ◽  
...  
Keyword(s):  
Block Design ◽  
Aqueous Suspension ◽  
Pure Water ◽  
Sitobion Avenae ◽  
Lipaphis Erysimi ◽  
Control Treatment ◽  
Verticillium Lecanii ◽  
Mustard Aphid ◽  
Laboratory Conditions ◽  
Grain Aphid

Mustard aphid (Lipaphis erysimi) and English grain aphid (Sitobion avenae) are among the most important pests in mustard and wheat fields in Nepal. Biocide Manic (Metarhizium anisopliae a.i. = 1 × 109 spores/ml) at 3 ml/l water, Agri Sakti (Beauveria bassiana a.i. = 1 × 109 spores/ml) at 3.3 ml/l water, Varunastra (Verticillium lecanii spores 2% aqueous suspension, 2 × 108 CFU/ml) at 6 ml/l water, Mahastra (Bacillus thuringiensis var. kurstaki 0.5% wettable powder) at 6 g/l water, Neemraj Super (Azadirachitin 0.3% w/w) at 3.3 ml/l water, Tracer (Spinosad 90% spinosyns) at 0.33 ml/l water, and control treatment (pure water) were used to test their efficacy against L. erysimi and S. avenae, using leaf dip and spray methods under laboratory conditions in Rupandehi, Nepal, in the year 2018. Each treatment was replicated four times, and the experiment was carried out in a randomized complete block design. Mortality of aphids was recorded at 24, 48, 72, and 98 hours after treatment application. The result revealed highest mortality of mustard aphids with Agri Sakti at 24 hours after treatment (HAT); however, Neemraj Super was found to be the most effective at 48, 72, and 96 HAT with the leaf spray method. With the leaf dip method, Neemraj Super killed more mustard aphids than other treatments at all observed time points. Among tested biorational products, Agri Sakti was found to be most effective against English grain aphids in both leaf spray and leaf dip methods. In all the bioassays, the mortality caused by biorational compounds over control was highly significant. The present study suggests for further verification of the biorational products in the field and development of novel management strategies against different species of aphids.

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