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Influence of Nitrogen Fertilization of Cabbage Grown in Mulches of Winter Cover Crops on Reducing the Population of the Cabbage Aphid (Brevicoryne brassicae L.)
Stanis aw Kotliński
Vegetable Crops Research Bulletin , 2011, DOI: 10.2478/v10032-011-0007-5
Abstract: In 2003-2004, the influence of mulches of winter cover crops on the population of the cabbage aphid (Brevicoryne brassicae L.) in white cabbage production with two levels of N fertilization was investigated. Winter cover crops (rye, hairy vetch and their mixture) reduced B. brassicae population on cabbage by 86.1% to 100%. The level of nitrogen fertilization of cabbage had no effect on the aphid population. In addition, it was found that higher levels of nitrogen fertilization can cause an increase in the population of B. brassicae when cabbage is grown in bare soil.
Antixenosis of Brevicoryne brassicae on Different Genotypes of Cabbage (Brassica oleracea Var. Capitata)  [PDF]
Muhammad Younis Jatoi,Muhammad Aslam,Misbah-ul-Haq,Shakeel Ahmad
Journal of Biological Sciences , 2001,
Abstract: Antixenosis of Brevicoryne brassicae on different genotypes of cabbage (Brassica oleracea var. capitata) was studied.The Golden acre, C110, B25, 14YXMEK2, DEC1XB21,CF2XLI2-11, and CF1XDT46 showed statistically less number of aphids while CF1XCF2, CF2XE34_A1 and DEC1XRB4PE attracted more number of aphids and the aphid thus showed more preference on these genotypes as compared to the others. The native variety Golden acre from Pakistan although attracted the least number of aphids but the number was not statistically different from the others mentioned earlier. The aphid, Brevicoryne brassicae discriminated among different cabbage genotypes and environmental factors including temperature, humidity and rainfall influenced the number of aphids per plant.
Evaluation of Cabbage Aphid, Brevicoryne brassicae (L.) on Different Varieties
of Rapeseed Mustard Crop under Field Conditions
 [PDF]

Sharafat Ali,M. Naeem,Ehsan-ul-Haq
Pakistan Journal of Biological Sciences , 2000,
Abstract: The population densities of Cabbage aphid Brevicoryne brassicae (L.) were studied on the thirteen varieties of rapeseed mustard crop. The aphid population were found from February to May, and peaked in the last week of March. The greater aphid densities were recorded on leaves and flowers as compared to stems. The significantly higher aphid populations was recorded on CON-I variety as compared to others rapeseed mustard varieties. The lowest significant numbers observed on KS 74 variety.
Developmental Response of Cabbage Butterfly, Pieris brassicae L. (Lepidoptera: Pieridae) on Different Cole Crops Under Laboratory and Field Condition  [PDF]
Arshad Ali,Parvez Qamar Rizvi
Asian Journal of Plant Sciences , 2007,
Abstract: An attempt was made to find out the developmental response of cabbage butterfly, Pieris brassicae on different cole crops under Laboratory and field condition. The overall development of P. brassicae was recorded significantly higher on yellow sarson (40.70±2.38 and 37.87±1.93 days) as compared to lower on cabbage (34.15±1.80 and 33.12±1.95 days), under laboratory and field condition, respectively (p≤0.05). All the developmental stages (egg, larval instars, prepupal and pupal) of P. brassicae was registered their maximum development period on yellow sarson followed by gobhi sarson, cauliflower and cabbage under both conditions. However, the maximum development period of adult was recorded on cabbage and minimum on yellow sarson in both situations. The cabbage butterfly tuned their highest generation mortality on yellow sarson (0.3565 and 0.3645) in contrast to lowest on cabbage (0.2555 and 0.2486) in both laboratory and field conditions, respectively. The number of adults was recorded maximum in laboratory than the field condition on all the cole crops. It is possible due to the presence of natural enemies (predators and parasitoids), abiotic factors (temperature, relative humidity and rainfall) and some unknown factors in the field condition.
Performance Evaluation of Camb Biopesticides to Control Cabbage Butterfly (Pieris brassicae) in Cauliflower Crop
Ahmad Usman Zafar,Idrees Ahmad Nasir,Ahmed Ali Shahid,Muhammad Sarwar Rahi
Pakistan Journal of Biological Sciences , 2002,
Abstract: CAMB Bt. based and fungus based biopesticides, commercial Bt. formulation from mycogen and a new chemical pesticide Methoxyfenozide (RH2485-240SC) were tested on cauliflower field against cabbage butterfly (Pieris brassicae). All pesticides successfully controlled the population of cabbage butterfly in cauliflower crop. The efficacy against I to V instar larvae and field stability of CAMB Bt. biopesticide was better than chemical and other biopesticides. So, CAMB Bt. can be safely recommended for pest management strategies against Lepidopteral pests on vegetables with no harmful effects on its predators as in case with chemical pesticides.
Population Fluctuations of Cabbage Aphid (Brevicoryne brassicae) and Identification of its Natural Enemies in Sistan Region  [cached]
S. S. Modarres Najafabadi,H. Akbari Moghaddam,G. Gholamian
Journal of Science and Technology of Agriculture and Natural Resources , 2005,
Abstract: Four different species of aphids belonging to the Aphididae family in four genera were collected and identified in Rape-seed fields in Sistan region during 2000-2001. Among them, Brevicoryne brassicae (Cabbage aphid) was the dominant species with an abundance of about 89% in area. The population fluctuation of Brevicoryne brassicae was studied simultaneously on fields in Sistan region (Zahak research station and her around fields). The research was conducted on a half hectare of each farm. Thirty leaves from each field at week intervals were randomly picked up and the aphids were collected and identified at the species level. The Brevicoryne brassicae had a peak of activity in early mid March to April at temperature and R.H. ranging between 22-28oC and 45-65 R.H., respectively. Controlled conditions indicated that the Brevicoryne brassicae has a life cycle of 6-7 days and adult female longevity is 20-31 days (25±2 oC and 75±5 R.H.). Rearing study also revealed that this species has the ability to reproduce up to 18-98 nymphs under laboratory conditions and an apterous female gives birth to 22-93 nymphs in her life time. Samplings for recognition of predators and parasitoids were also taken at 3-day intervals. Natural enemies in fields during the two years were identified to be 5 coccinellid (Col:Coccinellidae), 4 syrphid(Dip:Syrphidae) and 2 chrysopid species (Neu:Chrysopidae). Also in Hymenoptera, 2 parasitoids (Hym: Aphidiidae & Pteromalidae) were determined.
Effects of Different Temperatures on Biological Parameters of Cabbage Aphid,Brevicoryne brassicae (Hom., Aphididae)  [cached]
Y. Fathipour,A. Hosseini,A. A. Talebi,S. Moharramipour
Journal of Science and Technology of Agriculture and Natural Resources , 2005,
Abstract: The biological parameters of cabbage aphid, Brevicoryne brassicae (L.) was studied in the laboratory conditions under the three constant temperatures (20, 25 and 30 oC), RH 60±5% and a photoperiod of 16:8 (L:D) using 40 first instar nymphs. Among nymphs, 40%, 55% and 10% of them completed their nymphal period in 20, 25 and 30 oC, respectively and developed to adult stage. In 30 oC, the most biological acitivities of aphid were disrupted and the most individuals (nymphs and adults) were killed. Most developmental periods, longevity and the amount of reproduction in 20 oC were significantly greater than other temperatures. In temperatures 20, 25 and 30 oC the last individual of a cohort died in age of 33, 29 and 16 days, respectively. The life expectancy of cabbage aphid in the first day of experiment was 13.93, 10.50 and 7.19, respectively according to the mentioned temperatures. There was a little difference between net reproduction rates in temperatures 20 and 25 oC (16.74 and 15.92, respectively). Net reproduction rate was reduced extremely in temperature 30 oC (1.75). The intrinsic rate of the increase in the temperatures 20, 25 and 30 oC were 0.187, 0.226 and 0.042, respectively. The results indicated that 25 oC was the optimal temperature for biological activities of B. brassicae and its highest population growth was observed at this temperature.
Testing the importance of jasmonate signalling in induction of plant defences upon cabbage aphid (Brevicoryne brassicae) attack
Anna Ku?nierczyk, Diem HT Tran, Per Winge, Tommy S J?rstad, John C Reese, Joanna Troczyńska, Atle M Bones
BMC Genomics , 2011, DOI: 10.1186/1471-2164-12-423
Abstract: We have evaluated the function that jasmonates have in regulating Arabidopsis thaliana responses to cabbage aphid (Brevicoryne brassicae) by conducting a large-scale transcriptional analysis of two mutants: aos, which is defective in jasmonate production, and fou2, which constitutively induces jasmonic acid biosynthesis. This analysis enabled us to determine which genes' expression patterns depend on the jasmonic acid signalling pathway. We identified more than 200 genes whose expression in non-challenged plants depended on jasmonate levels and more than 800 genes that responded differently to infestation in aos and fou2 plants than in wt. Several aphid-induced changes were compromised in the aos mutant, particularly genes connected to regulation of transcription, defence responses and redox changes. Due to jasmonate-triggered pre-activation of fou2, its transcriptional profile in non-challenged plants mimicked the induction of defence responses in wt. Additional activation of fou2 upon aphid attack was therefore limited. Insect fitness experiments revealed that the physiological consequences of fou2 mutation contributed to more effective protection against B. brassicae. However, the observed resistance of the fou2 mutant was based on antibiotic rather than feeding deterrent properties of the mutant as indicated by an analysis of aphid feeding behaviour.Analysis of transcriptional profiles of wt, aos and fou2 plants revealed that the expression of more than 200 genes is dependent on jasmonate status, regardless of external stimuli. Moreover, the aphid-induced response of more than 800 transcripts is regulated by jasmonate signalling. Thus, in plants lacking jasmonates many of the defence-related responses induced by infestation in wt plants are impaired. Constant up-regulation of jasmonate signalling as evident in the fou2 mutant causes reduction in aphid population growth, likely as a result of antibiotic properties of fou2 plants. However, aos mutation does not se
The Effects of Extracts of Lantana camara (L.) and Azadirachta indica (A. Juss) on the Population Dynamics of Plutella xylostella, Brevicoryne brassicae and Hellula undalis on Cabbage  [cached]
P. K. Baidoo,J. I. Adam
Sustainable Agriculture Research , 2012, DOI: 10.5539/sar.v1n2p229
Abstract: The effects of ethanolic extract of neem, Azadirachta indica (Meliaceae), seeds and petroleum ether extract of Lantana camara leaves (Verbenaceae) on the populations of three cabbage pests, Plutella xylostella, Brevicoryne brassicae and Hellula undalis were studied. The study was conducted between January and April 2008. Extracts of the two plants were sprayed on cabbage plants to control these pests. A standard synthetic chemical insecticide (Mektin) was used as reference product. The experiment was conducted in a randomized complete block design and each treatment was replicated four times. The effects of plant extracts on the population dynamics of the pests’ species, the level of infestation and yield were assessed. Significantly more of the pests infested the control plants than the treated plants (P< 0.01). The mean weight of cabbage heads on the sprayed plots was significantly heavier than that of the control unsprayed plots. The use of A. indica seeds and L. camara leaf extracts increased yield by 37.05% and 25.80%, respectively. Spraying the cabbage plants with the plant extracts significantly reduced the numbers of pests compared with the control plants. The use of these plant extracts can be incorporated into an overall control programme of these pests.
Egg Laying of Cabbage White Butterfly (Pieris brassicae) on Arabidopsis thaliana Affects Subsequent Performance of the Larvae  [PDF]
Sven Geiselhardt, Kinuyo Yoneya, Beatrice Blenn, Navina Drechsler, Jonathan Gershenzon, Reinhard Kunze, Monika Hilker
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0059661
Abstract: Plant resistance to the feeding by herbivorous insects has recently been found to be positively or negatively influenced by prior egg deposition. Here we show how crucial it is to conduct experiments on plant responses to herbivory under conditions that simulate natural insect behaviour. We used a well-studied plant – herbivore system, Arabidopsis thaliana and the cabbage white butterfly Pieris brassicae, testing the effects of naturally laid eggs (rather than egg extracts) and allowing larvae to feed gregariously as they do naturally (rather than placing single larvae on plants). Under natural conditions, newly hatched larvae start feeding on their egg shells before they consume leaf tissue, but access to egg shells had no effect on subsequent larval performance in our experiments. However, young larvae feeding gregariously on leaves previously laden with eggs caused less feeding damage, gained less weight during the first 2 days, and suffered twice as high a mortality until pupation compared to larvae feeding on plants that had never had eggs. The concentration of the major anti-herbivore defences of A. thaliana, the glucosinolates, was not significantly increased by oviposition, but the amount of the most abundant member of this class, 4-methylsulfinylbutyl glucosinolate was 1.8-fold lower in larval-damaged leaves with prior egg deposition compared to damaged leaves that had never had eggs. There were also few significant changes in the transcript levels of glucosinolate metabolic genes, except that egg deposition suppressed the feeding-induced up-regulation of FMOGS-OX2, a gene encoding a flavin monooxygenase involved in the last step of 4-methylsulfinylbutyl glucosinolate biosynthesis. Hence, our study demonstrates that oviposition does increase A. thaliana resistance to feeding by subsequently hatching larvae, but this cannot be attributed simply to changes in glucosinolate content.
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