Uc management guidelines for cabbage aphid on cole. As a first step in a search for effective pest management techniques that can be affordable and easily. Effect of host plant on biology and life table parameters. Hom aphididae is an important pest of crucifers and is controlled by different insecticides, especially dimethoate. Nymph aphids younger than 4 days third instars produced no offspring after parasitism. Pdf on jan 1, 2004, beata gabrys and others published cabbage aphid, brevicoryne brassicae l. Cabbage aphids can overwinter as eggs on brussels sprouts, cabbage, and kale. The average number of mummies produced per female parasitoid was 42. Pdf changes in morphological traits of the cabbage aphid. Aphididae is regarded as one of the major insect pest of brassica crops throughout the world. The cabbage aphid, brevicoryne brassicae, has developed a chemical defence system that exploits and mimics that of its host plants, involving sequestration of the major plant secondary metabolites glucosinolates. Four biopesticides based on the epf beauveria bassiana botanigard es and naturalis l, cordyceps fumosorosea s. Infected aphids were spotted on cabbage plants in meghalaya, india.
The cabbage aphid, brevicoryne brassicae is one of the most serious insect pests of cabbage in lesotho. The cabbage aphid, brevicoryne brassicae hemiptera. It is important to thoroughly destroy host plant debris through tillage andor rouging. Make a choice to feed on brassica napus cultivars article pdf available in insects 103 march 2019 with 62 reads how we measure reads. Brevicoryne brassicae is an aphid species that feeds primarily on crucifers in all temperate and tropical regions of the world. Studies of the ecology of the cabbage aphid brevicoryne brassicae on brassica field crops in canterbury, new zealand i. Aphids were taken from a single cabbage plant collected in the field. Laboratory assessment of insecticidal properties of.
Morphological light and scanning electron microscopy and molecular characterisation of the fungus revealed it to be lecanicillium longisporum. Studies of the ecology of the cabbage aphid brevicoryne brassicae. Cabbage aphid brevicoryne brassicae is an important pest of cabbage in northeast india. The parasitoid diaeretiella rapae accepted all stages of the cabbage aphid brevicoryne brassicae. This amount represents less likely cabbage aphid resistance in. Photograph by lyle buss, university of florida, entomology and nematology department. Conclusive evidence of the properties of plants which determine host selection in aphids has been lacking1. Resistance to cabbage aphid brevicoryne brassicae in six brassica. Development of insecticide resistance in field populations. Smith, in genetic improvement of vegetable crops, 1993. Isolated wingless cabbage aphids, brevicoryne brassicae l.
Brevicoryne brassicae l cabbage aphid and myzus persicae sulzer green peach aphid peachpotato aphid. Flight behaviour of the black bean aphid, aphis fabae, and. After incidences of poor control by recommended insecticides, the current study was undertaken to find out the status of insecticide resistance in pakistani b. Susceptibility of myzus persicae, brevicoryne brassicae. Pull up and compost old plants, because cabbage aphids can overwinter in dead plant tissue. Infested leaves are often curled and become yellow leading to stunted plant growth.
Harvest brussels sprouts often, because sprouts left too long can serve as aphid nurseries. Aphididae, is a key pest of oilseed rape, brassica napus l. Like its host plants, the aphid produces a myrosinase. Cabbage aphids are one of several aphid species that can be problematic in canola crops. While present in spring and summer, populations increase by late summer and persist well into the autumn and winter season. Effect of the cabbage aphid brevicoryne brassicae on total glucosinolate in the seed of oilseed rape brassica napus. The results of this study indicated that red cabbage was an unsuitable host for feeding of b. Results comparative study with baythroidtm, neem oil 2% regarding the performance of synthetic insecticides to. Aphids isolated from birth all became wingless, whereas over 50 percent of grouped controls developed wings. Aphididae is a serious pest of crucifers in pakistan. Insecticidal activity and biochemical composition of.
Brevicoryne brassicae, commonly known as the cabbage aphid or cabbage aphis, is a destructive aphid plant louse native to europe that is now found in many other areas of the world. Agriculture and food research council linked research group in aphid biology, imperial college of science, technology and medicine, london. Chemical insecticides for efficient control of this pest are often unaffordable for resourcepoor farmers. Glossyleaved forms of brussels sprouts and marrowstem kale were found to be highly resistant to aphid, although the resistance appeared to be directly related to the lack of cuticular wax. Performance of the cabbage aphid, brevicoryne brassicae l. Flight behaviour of the black bean aphid, aphis fabae, and the cabbage aphid, brevicoryne brassicae, in host and nonhost plant odour. Pathogenicity tests were also conducted which yielded positive results.
When you see clusters of graygreen aphids on kale, broccoli, cabbage, or brussels sprouts, youre looking at cabbage aphids brevicoryne brassicae, one of the weirdest pests in the vegetable garden. The peach potato aphid, myzus persicae sulzer, 1776, is a generalist species that causes economic losses on many fieldgrown horticultural crops including vegetable brassicas and lettuce. Flight behaviour of the black bean aphid, aphis fabae, and the cabbage aphid, brevicoryne brassicae, in host and non. Aphidicidial activity of seven essential oils against the. The host plants of the cabbage aphid, brevicoryne brassicae l, are restricted to. Fumigant toxicity and nymph production deterrence effect of five essential oils on adults of the cabbage aphid, brevicoryne brassicae l. Lecanicillium longisporum on cabbage aphid brevicoryne. Commonly, life table parameters have been used to compare insect fitness on different varieties. Epilachna borealis fabricius coleoptera coccinellidae. Cabbage aphid brevicoryne brassicae linnaeus edis university. The cabbage aphid brevicoryne brassicae is a serious pest and requires high chemical inputs for adequate control. The aphids feed on many varieties of produce, including cabbage, broccoli especially, brussels sprouts, cauliflower and many other members of the genus brassica, but do not feed on plants outside of the family.
Fumigant toxicity and nymph production deterrence effect. Aphid densities tend to be higher on plants that have an excess of. This aphid is globally distributed, located in all but the coldest terrestrial habitats. Apterous adult aphids were bioassayed from 2006 to 2010 for their. Brevicoryne brassicae, a major pest of brassica crops and an. Brevicoryne brassicae an overview sciencedirect topics. Its pest status is enhanced by its high reproductive capacity. Isolation caused hyperactivity of the corpus allatum. Cabbage aphids are bluishgrey in colour with a pale powdery waxy coating. Brevicoryne brassicae linnaeus homoptera aphididae. It is also a vector of over 100 plant viruses including in many important crops.
Factors affecting abundance and damage caused by cabbage aphid. They are often found in dense clusters underneath the leaves. Purification and characterization of myrosinase from the cabbage aphid brevicoryne brassicae, a brassica herbivore. Aphididae, is a serious pest native to europe but now found globally 1,2, and it causes significant losses. Use of the parasitoid diaeretiella rapae mcintoch to. Common name mealy cabbage aphid latin name brevicoryne brassicae plants affected cabbage, cauliflower, brussels sprout, swede and other brassicas main symptoms greyish white aphids cluster underneath the leaves and on growing points. This paper concerns three different aphid pests of field vegetable crops. Latematuring brussels sprouts and cabbage are at high risk for damage by cabbage aphids. Diaeretiella rapae did not show preference between young firstsecond instars and old fourth instars nymphs of the aphid. Lamb plant diseases division, department of scientific and industrial research, auckland and a. Pdf management of cabbage aphid, brevicoryne brassicae l.
Studies of the ecology of the cabbage aphid brevicoryne. Leaves distorted and discoloured on young plants caused by a sapsucking insect timing apriloctober. Pdf purification and characterization of myrosinase from. Host plant preference and life table of brevicoryne.
Brassica plants, digestive enzymes activity, life table parameters, plant resistance, the cabbage aphid. Brevicoryne brassicae on four brassica leafy vegetables. Cabbage aphids have many natural enemies and these can sometimes control low populations. Cabbage aphid brevicoryne brassicae click for html version summary.
It can cause total crop loss on brassica leafy vegetables 8. How natural enemies and cabbage aphid brevicoryne brassicae l. Etiella zinckenella treitschke lepidoptera pyralidae. The genetic and morphological differentiation of insect populations in relation to the use of different host plants is an important phenomenon that predates ecological specialisation and speciation in sympatric conditions. Effect of the cabbage aphid brevicoryne brassicae on total. The cabbage aphid is of agricultural concern because it is a vector of at least 20 viral pathogens that can cause diseases in crucifers and citrus. Two primary species of aphids plant lice attack cole crops. Plants in all stages of growth are frequently covered with dense clusters of whitishgreen plant lice. Cabbage aphid brevicoryne brassicae linnaeus insecta. Aphididae, is a serious pest native to europe but now found globally 1, 2, and it causes significant losses to economically important crops, including broccoli, oilseed rape, brussels sprouts, cauliflower, black and white mustard, toria, chinese cabbage, kale, and other field crops 1. Population dynamics of cabbage butterfly pieris brassicae. General information about brevicoryne brassicae brvcbr. No cultivar was completely resistant to infestation by cabbage butterfly and aphids.
Infestations of these late season insects are typically controlled with foliar applications of. Induction of resistance against brevicoryne brassicae by. Biochemical resistance mechanisms to dimethoate in. Canola crop, cabbage aphid, neonicotinoids seed treatment, salicylic acid.
Cabbage aphids, brevicoryne brassicae, linnaeus colony or cluster on a cabbage stem. Hafez m 1961 seasonal fluctuations of population density of the cabbage aphid, brevicoryne brassicae l. The toxicity of dimethoate in six populations of the pest from different parts of iran was assayed using leafdip method. Brevicoryne brassicae brvcbroverview eppo global database. Aphididae is one of the most abundant canola pest insects, causing economic damage to flowering and podding crops. Originally from the palaearctic, this species has invaded almost all parts of north america. Preferal wg, and akanthomyces dipterigenus vertalec were evaluated in a laboratory bioassay against peachpotato aphid myzus persicae, cabbage aphid brevicoryne brassicae, and currantlettuce aphid nasonovia ribisnigri. Host plant preference and life table of brevicoryne brassicae. Abstract the literature concerning the breeding of brassicas resistant to cabbage aphid brevicoryne brassicae l. Because they are similar in life habits and response to treatments, they will be considered together.
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