The lettuce aphid, nasonovia ribisnigri mosley, is an economically important pest of lettuce worldwide. Growers are using various forms of habitat manipulation to enhance biological control. Bioassay data for a reference strain of nasonovia ribisnigri mosely, exhibiting similar responses to proven susceptible strains of myzus persicae sulzer and aphis gossypii glover, were used to assess insecticide resistance in two suspected resistant strains and nine field strains of n. Biology and control of currant lettuce aphid nasonovia ribisnigri.
Hypocreales against the lettuce aphid, nasonovia ribisnigri hemiptera. An nhexane extract and the sesquiterpene polygodial isolated from the bark of drimys winteri j. A bigeyed bug geocoris punctipes attacking egg mass of omnivorous leafroller platynota stultana on leaf of bell pepper plant and b attacking egg mass of beet armyworm spodoptera exigua on leaf of bell pepper plant. Us20170318770a1 lettuce plants comprising resistance. The possibility of nasonovia ribisnigri resistance breaking biotype development due to plant host resistance. The present invention relates to the field of lettuce breeding, in particular to quantitative trait loci for resistance against the lettuce aphid nasonovia ribisnigri biotype nr. An nasonovia ribisnigri in uska species han insecta. The currantlettuce aphid, nasonovia ribisnigri mosley, 1841, utilizes members of the asteraceae as secondary i. The last decades the demand for biological control of pest insects has been increasing. Towards new sources of resistance to the currantlettuce. It has been recorded from species of plant families. Lettuce plants comprising resistance against nasonovia ribisnigri biotype 1 download pdf info publication number au2015340590a1.
Preferal wg, and akanthomyces dipterigenus vertalec were evaluated in a laboratory bioassay against peachpotato aphid myzus persicae. Synergy between chemical and biological control in the ipm of currantlettuce aphid nasonovia ribisnigri in canterbury, new zealand article in bulletin of entomological research 1002. The currantlettuce aphid nasonovia ribisnigri mosley hemiptera, aphididae is the most significant pest infesting lettuce in northern europe collier et al. Abstract 1 this paper reports on experiments to determine how two different insecticide resistance phenotypes in the aphid nasonovia ribisnigri mosley, which is a major pest of lettuce, change its susceptibility to pyrethroid insecticides and the carbamate pirimicarb. Besides, it can be an alternative or complementary strategy to the traditional use of synthetic pesticides for pest control van driesche et al. Lettuce aphid nasonovia ribisnigri, a pest of romaine lettuce. Syrphidae to suppress populations of nasonovia ribisnigri mosley homoptera. This aphid is globally distributed, located in all but the coldest terrestrial habitats. Cover crops and related methods for enhancing agricultural. Flower flies syrphidae and other biological control agents. Syrphids are important predators utilized for conservation biological control. Ultralow oxygen treatment for postharvest control of nasonovia ribisnigri homoptera. Agronomic aspects of strip intercropping lettuce with alyssum for.
Indirect nontarget effects of insecticides on tasmanian brown lacewing micromus tasmaniae from feeding on lettuce aphid nasonovia ribisnigri. Survey of syrphid predators of nasonovia ribisnigri in. Biological and populational aspects of nasonovia ribisnigri and aulacorthum solani on lettuce article pdf available in pesquisa agropecuaria brasileira 373. Pdf this study reports economic thresholds for the lettuce aphid nasonovia ribisnigri mosley, based. Producers of highvalue salad packs require highquality raw material free from blemishes and foreign bodies including insects.
Insecticide resistance in the currantlettuce aphid. Several aphid species such as nasonovia ribisnigri mosley, macrosiphum euphorbiae thomas, and myzus persicae sulzer are considered the main aphid species colonizing lettuce in europe blackman and eastop 1984, collier et al. Role of the aphid species and their feeding locations in. We do not use these to store personal information about you. Introduction cover crops and conservation tillage in cotton in georgia, usa conservation biological control by syrphid larvae of nasonovia ribisnigri. The development of an economic threshold for nasonovia. We report, for the first time, the occurrence of paecilomyces niveus as an entomopathogen of the aphid nasonovia ribisnigri in pinhais, parana, brazil. The entomopathogenic fungus beauveria bassiana strain gha has recently been reported as a potential biocontrol candidate for use against the lettuce aphid.
Unravelling the resistance mechanism of lettuce against nasonovia. Plants were arranged in plots and just before the formation of lettuce hearts. Dr rosemary collier school of life sciences, the university of warwick, wellesbourne, warwick cv35 9ef. Pdf growth, development and consumption by four syrphid. Synergy between chemical and biological control in the ipm of currantlettuce aphid nasonovia ribisnigri in canterbury, new zealand volume 100 issue 2 l. Ecology and behavior distribution and population development. Lettuce that is resistant to the lettuce aphid nasonovia. Entomophthorales infecting nasonovia ribisnigri hemiptera. A survey of syrphid predators of nasonovia ribisnigri in organic.
The lettuce aphid, nasonovia ribisnigri mosley, was accidentally introduced into. Nasonovia ribisnigri, natural enemies, population fluctuation, multiple. Apr 01, 20 aphids are the most serious pests of lettuce in the united states, europe, and in many other parts of the world. The present invention relates to lettuce plants and heads that are resistant to nasonovia ribisnigri biotype 1 also called herein nr. Pdf biological and populational aspects of nasonovia. Biological control aphididae syrphidae predation potential lettuce abstract the lettuce aphid, nasonovia ribisnigri mosley, was accidentally introduced into california from europe during the late 1990s and soon became an economic pest of romaine lettuce along californias central coast region. Pdf laboratory and semifield evaluation of beauveria.
The aim of this study was to evaluate the potential of entomopathogenic fungi epf for the control of aphid pests of field vegetable crops. The development of an economic threshold for nasonovia ribisnigri hemiptera. Biological control was originally defined as the action of parasites, predators, or. Laboratory and semifield evaluation of beauveria bassiana. If chemical control is considered it is important to treat crops early when the aphid colonisation reaches a threshold of 1 to 5 percent, using effective. Laboratory and semifield evaluation of beauveria bassiana ascomycota. The possibility of nasonovia ribisnigri resistance breaking biotype. Host species suitability and instar preference of aphidius. In 2006, we carried out five replicated field trials to determine the importance of syrphid larvae in the suppression of n. Pdf the development of an economic threshold for nasonovia.
Ang nasonovia ribisnigri sakop sa kahenera nga nasonovia sa kabanay nga aphididae. Nasonovia ribisnigri submitted by matthew barber for the degree of phd of the university of bath 2002 copyright attention is drawn to the fact that of this thesis rests with its author. Continuing to use this website means you agree to our use of cookies. C t q e ultralow oxygen treatment for postharvest control of. Nasonovia ribisnigri nr, also known as the currantlettuce aphid, is an important pest for. Nasonovia ribisnigri nasorndocuments eppo global database.
Natural enemies of the currant lettuce aphid, nasonovia ribisnigri. Feb 14, 2018 nasonovia ribisnigri is primarily a pest of lettuce, chicory, endive and radicchio where aphids colonise lettuce hearts and rosettes. Nasonovia ribisnigri is a key pest of lettuce lactuca sativa l. Ecology and behavior distribution and population development of nasonovia ribisnigri homoptera. Au2015340590a1 lettuce plants comprising resistance against. Resistancebreaking nasonovia biotype confirmed in australia. In the case of the currant lettuce aphid nasonovia ribisnigri, an economically important pest aphid of lettuce, sources of such information are limited. Biological characteristics of nasonovia ribisnigri. Documents about nasonovia ribisnigri nasorn this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Role of syrphid larvae and other predators in suppressing. Biological control vol 52, issue 1, pages 190 january.
The lettuce aphid is a major pest of lettuces lactuca sativa l. The invention further relates to a source of the resistance for use in breeding. Four biopesticides based on the epf beauveria bassiana botanigard es and naturalis l, cordyceps fumosorosea s. This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise. Both pests may occur simultaneously in the same field and on the same leaves. Flower flies syrphidae and other biological control. There is a consensus that the development of successful integrated pest management strategies requires a detailed understanding of pest biology. Synergy between chemical and biological control in the ipm. The lettuce aphid, nasonovia ribisnigri mosley, was accidentally introduced into california from europe during the. Flower flies syrphidae and other biological control agents for. Development of an economic threshold for nasonovia ribisnigri. An nasonovia ribisnigri in nahilalakip ha genus nga nasonovia, ngan familia nga aphididae. The young wingless adults, length 2 to 3 mm, yellowgreenish, with straight, unswollen siphunculi, have narrow dark spots on the rear section of the abdomen, on each side of the median line.
Synergy between chemical and biological control in the ipm of. Biology and control of the currantlettuce aphid nasonovia ribisnigri gemma hough g. In recent years this insect has spread to other continents north and south america, asia and australia, where eventually causes major problems for growers. Aphididae, biological control, chrysopidae, prey ratios, thripidae. Their primary hosts are currant plants, including blackcurrants ribes nigrum and gooseberries ribes uvacrispa, while the secondary hosts are a wider range of plants, including members of the compositae hieracium, lapsana, crepis, leontodon and cichorium, lamiales veronica and euphrasia and solanaceae nicotiana and petunia. Nasonovia ribisnigri nasornoverview eppo global database.
Synergy between chemical and biological control in the ipm of currantlettuce aphid nasonovia ribisnigri in canterbury, new zealand volume 100 issue 2. General information about nasonovia ribisnigri nasorn. Biology and control of the currantlettuce aphid nasonovia. Nasonovia ribisnigri is a cosmopolitan aphid species with a somewhat narrow host range.
Forster winteraceae were tested to assess their ability to inhibit settling of the aphid nasonovia ribisnigri mosley on lettuce leaves. The activity of a selected extract of drimys winteri bark and. Biological control is a key, though often underappreciated, component in agricultural pest management. Insects free fulltext susceptibility of myzus persicae. Aphididae on lettuce in central spain article pdf available in journal of economic entomology 1062. Biology and control of currant lettuce aphid nasonovia. Nasonovia ribisnigri mosley is a european aphid species that. Distribution and population development of nasonovia ribisnigri. Distribution and population development of nasonovia ribisnigri homoptera.
Biological control was originally defined as the action of parasites, predators, or pathogens in maintaining another organisms population at a lower average than would occur in their absence debach 1964. Chemicals give extra protection next to genetical, cultural, mechanical, biological and. Growth, development and consumption by four syrphid species. Apr 01, 20 this study reports economic thresholds for the lettuce aphid nasonovia ribisnigri mosley, based exclusively on cosmetic damage, that is, presence or absence of aphids at harvest time. The impact of insecticide resistance in the currantlettuce.
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