scholarly journals Cabbage aphid Brevicoryne brassicae Linnaeus (Insecta: Hemiptera: Aphididae)1

EDIS ◽  
2013 ◽  
Vol 2013 (10) ◽  
Author(s):  
Harsimran Kaur Gill ◽  
Harsh Garg ◽  
Jennifer L. Gillett-Kaufman
Keyword(s):  
Brevicoryne Brassicae ◽  
Control Measures ◽  
Yield Losses ◽  
Comprehensive Understanding ◽  
Cabbage Aphid ◽  
Fact Sheet ◽  
The Family ◽  
Significant Yield ◽  
Cabbage Aphids

Cabbage aphids cause significant yield losses to many crops of the family Brassicaceae, which includes the mustards and crucifers. It is important to have a comprehensive understanding of this pest and its associated control measures so that its spread and damage can be prevented. This 5-page fact sheet was written by Harsimran Kaur Gill, Harsh Garg, and Jennifer L. Gillett-Kaufman, and published by the UF Department of Entomology and Nematology, October 2013. http://edis.ifas.ufl.edu/in1014

scholarly journals Natural Entomophages of Brevicoryne Brassicae (L.) (Hemiptera: Aphididae) in Uzbekistan

2019 ◽  
Vol 11 (4) ◽  
pp. 42
Author(s):  
Kahramon B. Razzakov ◽  
Ikram. I. Abdullaev ◽  
Ko’pal O. Saparboev ◽  
Mavluda M. Allaberganova
Keyword(s):  
Coccinella Septempunctata ◽  
Early Spring ◽  
Brevicoryne Brassicae ◽  
Episyrphus Balteatus ◽  
Cabbage Aphid ◽  
Reproductive Ability ◽  
Chrysopa Carnea ◽  
Biological Effectiveness ◽  
Cabbage Aphids ◽  
Phenological Phases

In our studies phenological phases of cabbage aphids Brevicoryne brassicae (L.) were studied. The influence of external factors (humidity and temperature) was studied under laboratory conditions. The maximum reproductive ability of cabbage aphids was noted in spring and autumn. Some of the parthenogenetic aphids gave about 82 larvae. The daily reproductive ability of aphids was 3-5, and the maximum 5-11. When studying the reproductive ability of parthenogenetic aphids, this indicator was slightly lower than that of the wingless aphids (average 28, maximum 51). The overall development of cabbage aphid seeds averaged 7–9 days in summer and 12–21 days in early spring and autumn. The importance and bioecological features of Metamorphus corollae (F.), Episyrphus balteatus (De Geer, 1776), Syrphus vitripennis (Meigen, 1822), Scaeva pyrastri (L.) Coccinella septempunctata (L.) and Adonia variegata (G.), Chrysopa carnea Steph. with natural control of the cabbage aphid were studied. Studying the biological effectiveness of a simple golden-eyed fly in relation to the cabbage bug, efficiencies were observed at a ratio of II-year-old larvae of simple golden-eyed and cabbage bug in a ratio of 1:5 and 1:10. For 4 day old gold-eyed eggs, this efficiency was observed when the ratio with cabbage bug was 1:1 on the 17th day of the experiment.

scholarly journals Field Screening of Seven Cultivars of Cabbage Against Cabbage Butterfly (Pieris brassicae) and Cabbage Aphids (Brevicoryne brassicae) at Gkuleshor, Baitadi, Nepal

2020 ◽  
Vol 14 (1) ◽  
pp. 63-67
Author(s):  
Narendra Bahadur Singh ◽  
Santosh Dhungana ◽  
Srijana Adhikari ◽  
Dipesh Chapagain ◽  
Nawaraj Ghimire ◽  
...  
Keyword(s):  
Population Density ◽  
Pieris Brassicae ◽  
Brevicoryne Brassicae ◽  
Animal Science ◽  
Field Screening ◽  
Cabbage Aphid ◽  
Cabbage Butterfly ◽  
Science College ◽  
Butterfly Population ◽  
Cabbage Aphids

Field screening of seven cultivars of cabbage namely: Green Crown, Green Top, Green Coronet, Pioneer, Nepa Round, Copenhagen Market and Golden Acre were carried out against cabbage butterfly (Pieris brassicae) and cabbage aphid (Brevicoryne brassicae) at the research farm of entomology section, Gokuleshwor Agriculture and Animal Science College, Baitadi in RCBD design from October 2017 to February 2018. Five plants were tagged randomly after transplanting in field excluding border plants in each plot. Data were collected for the population dynamics of cabbage butterfly larvae and cabbage aphid on weekly basis. None of the seven cultivars were found resistant to cabbage butterfly and cabbage aphid, however their population density varied on tested cultivars. Cabbage butterfly population was recorded the highest on the cultivar Pioneer (22.88 larvae/plant) and the lowest on the cultivar Copenhagen Market (10.06 larvae/plant), and other cultivars were of intermediate types. Similarly, the population density of aphid ranged from 36.70 to 105.58 aphids/leaf. The highest population density of aphid was recorded on cultivar Green Crown (105.58 aphids/leaf) and the lowest on cultivar Copenhagen Market (39.82 aphids/leaf. From the results, Copenhagen Market proved to be the best against both cabbage butterfly and cabbage aphids.

REPRODUCTION AND LONGEVITY OF CABBAGE APHID, BREVICORYNE BRASSICAE (HOMOPTERA: APHIDIDAE), PARASITIZED BY DIAERETIELLA RAPAE (HYMENOPTERA: APHIDIIDAE)

1984 ◽  
Vol 116 (12) ◽  
pp. 1605-1610 ◽  
Author(s):  
M. Mackauer ◽  
S. Kambhampati
Keyword(s):  
Adult Stage ◽  
Variable Number ◽  
Reproductive Period ◽  
Brevicoryne Brassicae ◽  
Diaeretiella Rapae ◽  
Linear Regression Equation ◽  
Cabbage Aphid ◽  
Total Fecundity ◽  
The Mean ◽  
Cabbage Aphids

AbstractParasitized cabbage aphids, Brevicoryne brassicae (Linnaeus), produced fewer offspring than unparasitized aphids. Aphids parasitized by Diaeretiella rapae (M'Intosh) during the first, second, or third instar died before producing any offspring; those parasitized during the fourth instar or the adult stage produced a variable number of offspring. The aphid's survival time was correlated with the rate of development, as measured by the length of the pre-reproductive period. A multiple-linear-regression equation is provided for predicting the mean total fecundity of parasitized cabbage aphids from the host age at the beginning of parasitism and the pre-reproductive period.

scholarly journals Formulation of weather based forecasting model for mustard aphid, Lipaphis erysimi kalt. in Tarai region of Uttarakhand

2020 ◽  
Vol 1 (1) ◽  
pp. 27-30
Author(s):  
Shweta Patel ◽  
◽  
C.P. Singh ◽  
wajid Hasan ◽  
◽  
...  
Keyword(s):  
Control Measures ◽  
Aphid Population ◽  
Lipaphis Erysimi ◽  
Weather Data ◽  
Forecasting Model ◽  
Yield Losses ◽  
Mustard Aphid ◽  
Significant Yield ◽  
Weather Parameters

Lipaphis erysimi (Kalt.) infestation on mustard account for significant yield losses in India. Experimental data from sixteen years were used to study the role of weather on the incidence and development of mustard aphid. Temperature was found to regulate the aphid population build-up and arrival . Weather parameters before one week from aphid population observation contribute higher effect than of the same date, two week prior and three week prior observation. In the present investigation regression equation between aphid incidence and using previous week’s weather data could be used for formulating the forecasting model for L. erysimi, and for taking control measures.

scholarly journals Comparative Genomics Used to Predict Virulence Factors and Metabolic Genes among Monilinia Species

2021 ◽  
Vol 7 (6) ◽  
pp. 464
Author(s):  
Marina Marcet-Houben ◽  
Maria Villarino ◽  
Laura Vilanova ◽  
Antonieta De Cal ◽  
Jan A. L. van Kan ◽  
...  
Keyword(s):  
Brown Rot ◽  
Weather Conditions ◽  
Genomic Variation ◽  
Disease Development ◽  
Stone Fruits ◽  
Yield Losses ◽  
Future Studies ◽  
Metabolic Genes ◽  
Pome Fruits ◽  
Significant Yield

Brown rot, caused by Monilinia spp., is among the most important diseases in stone fruits, and some pome fruits (mainly apples). This disease is responsible for significant yield losses, particularly in stone fruits, when weather conditions favorable for disease development appear. To achieve future sustainable strategies to control brown rot on fruit, one potential approach will be to characterize genomic variation among Monilinia spp. to define, among others, the capacity to infect fruit in this genus. In the present work, we performed genomic and phylogenomic comparisons of five Monilinia species and inferred differences in numbers of secreted proteins, including CAZy proteins and other proteins important for virulence. Duplications specific to Monilinia were sparse and, overall, more genes have been lost than gained. Among Monilinia spp., low variability in the CAZome was observed. Interestingly, we identified several secondary metabolism clusters based on similarity to known clusters, and among them was a cluster with homology to pyriculol that could be responsible for the synthesis of chloromonilicin. Furthermore, we compared sequences of all strains available from NCBI of these species to assess their MAT loci and heterokaryon compatibility systems. Our comparative analyses provide the basis for future studies into understanding how these genomic differences underlie common or differential abilities to interact with the host plant.

Incidence of the cabbage aphid, Brevicoryne brassicae L. in potato crops in India and its efficiency for transmission of potato virus Yo

2021 ◽  
Author(s):  
Jandrajupalli Sridhar ◽  
Vallepu Venkateswarlu ◽  
Mohd Abas Shah ◽  
Neelam Kumari ◽  
Anuj Bhatnagar ◽  
...  
Keyword(s):  
Potato Virus ◽  
Brevicoryne Brassicae ◽  
Cabbage Aphid ◽  
Potato Crops
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