Continuing to use this website means you agree to our use of cookies. The genus includes most of the psylla harmful to fruit trees. Psyllid training school neustadt w, germany, 19th23rd april 2010 cacopsylla pyricola vector of ca. Psyllidpictorialkey of cacopsylla on rosaceae in central european download here you can download as pdf and print fact sheets for the 15 central european cacopsylla species associated with rosaceae. Evidence of a femaleproduced sex pheromone in the european. The efficacy of a given insecticide varied from year to year and from testing date to testing date within the same year.
Ecological and genetic differences between cacopsylla. Finally, in order to ascertain that the diagnostic pcr amplified only c. Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family. As an alternative to conventional chemical pesticides, botanicals including essential oils and their constituents could provide an ecofriendly and nonhazardous control method. Dna samples extracted from groups of 210 pomelo psyllid nymphs of all stages and from leaves of lemon plants were analyzed with nestedpcr in order to detect candidatus liberibacter asiaticus las.
The efficacy of different insecticides neem, pyrethrin, spinosad, and rotenone and a repellent kaolin applied with different strategies single or repeated applications against the overwintering pear suckers cacopsylla pyri and nymphs of the first generation was tested in a field trial in switzerland in spring 2003. If you are logged in, you can add new subtaxa, vernacular and scientific names, texts, images or intertaxon relationships for this taxon. Psyllidae and is considered as a biological control agent against this pest. Psyllids, as vectors of phloemrestricted plant pathogens, are serious agricultural pests. The effectiveness of spirotetramat in the control of pear psylla cacopsylla pyri on pear trees was investigated in five field experiments, carried out in years 2009 2011. The model included a timedistributed delay and was based on authors. Jerinicprodanovic faculty of agriculture, university of belgrade, nemanjina 6, 11080 zemun, serbia abstract. Pdf the past and present of pear protection against the. Efficacy of spirotetramat in the control of pear psylla. Biocontrol companies suggest spring release of 1500 adult a. The high incidence and wide geographical distribution of stolbur phytoplasma in pears along with its presence in cacopsyla pyri, the main vector of pear phytoplasma, calls for investigation of the role of this phytoplasma in the development of pear decline in croatia. Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and. We do not use these to store personal information about you.
Documents about cacopsylla pyri psylpi this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Psyllidae is the most important harmful species in pear growing areas. Diversity of phytoplasmas infecting fruit trees and their. Cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Pdf measuring pear psylla population density cacopsylla pyri l. Thus, there is a widespread interest in the search for suitable. Seasonal variation in susceptibility of the pear psyllid, cacopsylla. Synergism studies between deltamethrin and piperonyl butoxide pbo, applied either topically or by tarsal contact with pbo, showed i that the rates of synergism were more than 10.
Hemiptera psyllidae is one of the most important pests of pear orchards in europe that reduces the market value of pears. To make tebufenpyrad 20 wp needs some materials ingredients. Mogucnosti suzbijanja kruskine buhe cacopsylla pyri l. In order to investigate the effects of plant varieties on predation of c. The most frequent method is chemical method applied to control the pear psylla which is the main pest of pear.
The male of banasa chaca thomas is described with emphasis on external and internal genitalia and the female internal genitalia is described. Efficacy of different insecticides and a repellent against the european pear sucker cacopsylla pyri. Pdf zusammenfugen online pdf dateien zusammenfugen. We compare sampling techniques and develop sampling methods for c. Rotenone, the only admitted product in swiss organic agriculture. The most important periods of treatment are at the time when eggs are laid by females as well as during the egg hatching and. Phenology of fall dispersal into apple orchards is described for winterform pear psylla, cacopsylla pyricola foerster, in orchards located in yakima and wenatchee, washington. The phytoplasma is acquired by the psylla upon feeding on an infected plant and transmitted to an healthy one by salivation during feeding on phloem carraro et al. Two molecular markers of 271 and 188 bp were developed from c.
The contact toxic effect of the insecticides on adults of c. Abstract although cacopsylla pyri forster and cacopsylla pyricola linnaeus have long been considered as more significant pests of pear trees. The past and present of pear protection against the pear psylla, cacopsylla pyri l. Cacopsylla pyri psylpioverview eppo global database. Cacopsylla pyri behaviour on new pear selections for host. With some insecticides, mortality was noted after 24 hours.
A phenological model of first and secondgeneration pear psylla, cacopsylla pyri l. Retrieved 20 april this can sometimes lead to deformation of the leaves. The past and present of pear protection against the pear. Topical application bioassays, conducted on french populations of cacopsylla pyri, showed resistance rates to deltamethrin ranging from 31. Proucavajuci zastupljenost kruskinih lisnih buva u srbiji, pavicevic 1977 je utvrdila i prirodne neprijatelje c. Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots. Different densities of adult cacopsylla 1, 3, 6, 10 and 20 were offered to. Psylla in both regions first appeared on pear in mid to late september, reaching peak densities in late october or early to mid november, and then decreased in numbers to a low in december. Incidence of candidatus liberibacter europaeus and.
Pdf testing spirotetramat as an alternative solution to. It is a pest of pear trees, sucking the sap, damaging the foliage, flowers and fruit and diminishing the crop. Ona je registrovala prisustvo jedanaest vrsta parazitoidnih osica iz sedam familija, ali veci broj vrsta je sakupila, tako da je ostalo nejasno da li su sve te osice zaista parazitoidi c. The most frequent method is chemical method applied. The size of fruit is decreased and tree growth is diminished. Due to various problems arising from the chemical control of the pest it has become necessary to find alternative solutions. Geographic and seasonal variability of resistance to insecticides in cacopsylla pyri l. Psyllidae, is one of the principal pests of pear pyrus spp. Cacopsylla is a genus of bugs in the psyllidae family, the jumping plant lice. Kruskina buha uzrokuje direktne i indirektne stete.
The psylloidea psyllids or jumping plant lice are small plantfeeding insects that form the group called sternorrhyncha t ogether with aphids, phylloxerans, scale insects and whiteflies. Effects of kaolin on some biological properties of pear. Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family psyllidae. Different life stages of the progeny of infected female psyllids were analysed by pcr detection of phytoplasma dna. Originating in europe and asia, it has spread to north america. Psylla pyri damages pear trees by sucking the plant sap. The possible transovarial transmission of two phytoplasmas, candidatus phytoplasma mali and candidatus phytoplasma prunorum, through their respective psyllid vectors cacopsylla melanoneura and cacopsylla pruni, was investigated. Recently, the bacterium candidatus liberibacter europaeus was found in pear trees and in cacopsylla pyri linnaeus, the vector of ca. Control measures are directed specifically at controlling pear psylla and require accurate and timely information about insect densities in the orchard. The genus includes most of the psylla harmful to fruit trees species.
Anthocoridae is one of the most prominent predators of the pear psylla, cacopsylla pyricola forster hemiptera. Request pdf phenological model of pear psylla cacopsylla pyri a phenological model of first and secondgeneration pear psylla, cacopsylla pyri l. Tebufenpyrad 20 wp be effective on the cacopsylla pyri pest to protect the pears. They are tebufenpyrad as active matter, sodium lauryl sulfate sls as anionic surfactant, modified starch, dextrin powder and some fillers. Molecular test to assign individuals within the cacopsylla. Cacopsylla pyri is a preferred and high quality prey for a. Pdf zusammenfugen pdfdateien online kostenlos zu kombinieren. Dieses kostenlose tool erlaubt es mehrere pdfs oder bilddateien miteinander zu einem pdfdokument zu verbinden. Additionally, the leafhopper asymmetrasca decedens synonym empoasca decedens has been suggested as a potential vector of this phytoplasma pastore et al. Fruit tree phytoplasmas are transmitted by different cacopsylla spp. Pdf merge combinemerge pdf dateien online kostenlos deftpdf. Management and control of insecticideresistant pear psylla cacopsylla pyri franti sek kocourek and jitka stara research institute of crop production, drnovska 507 praha 16106, czech republic email. Introduction in poland, the control programme for pear psylla cacopsylla pyri pres ently requires a few treatments.
Phenological model of pear psylla cacopsylla pyri schaub. The spiders were then placed singly in petri dishes diameter 6 cm, height 1 cm, area 000754 m 2. Pdf following the survey of the proposed and applied methods the washdown procedure has been evaluated to collect the pear psylla larvae cacopsylla. Testing spirotetramat as an alternative solution to abamectin for cacopsylla pyri hemiptera. Ecological and genetic differences between cacopsylla melanoneura hemiptera, psyllidae populations reveal species host plant preference valeria malagnini, 1, federico pedrazzoli, 1 chiara papetti, 2 christian cainelli, 1 rosaly zasso, 1 valeria gualandri, 1 alberto pozzebon, 3 and claudio ioriatti 1. Insecticidal potential of clove essential oil and its. Effectiveness of azadirachtin neemazal ts in controlling pear psylla cacopsylla pyri and european red mite panonychus ulmi dejan marcic, irena ogurlic, mirjana prijovic and pantelija peric institute of pesticides and environmental protection, banatska 31b. Psyillidae ili kruskina buha, predstavlja najvaznijeg ekonomskog stetnika u vocnjacima kruske. Phenological model of pear psylla cacopsylla pyri request pdf. Psyllid training school neustadt w, germany, 19th23rd april 2010 ii. Possible phytoplasma transovarial transmission in the.
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