Testing spirotetramat as an alternative solution to abamectin for cacopsylla pyri hemiptera. Phenological model of pear psylla cacopsylla pyri schaub. Evidence of a femaleproduced sex pheromone in the european. Cacopsylla pyri is a preferred and high quality prey for a. 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. As an alternative to conventional chemical pesticides, botanicals including essential oils and their constituents could provide an ecofriendly and nonhazardous control method. Two molecular markers of 271 and 188 bp were developed from c. The contact toxic effect of the insecticides on adults of c. The efficacy of a given insecticide varied from year to year and from testing date to testing date within the same year. Molecular test to assign individuals within the cacopsylla. Kruskina buha uzrokuje direktne i indirektne stete. 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 past and present of pear protection against the pear.
Due to various problems arising from the chemical control of the pest it has become necessary to find alternative solutions. Cacopsylla pyri psylpidocuments eppo global database. 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. Phenological model of pear psylla cacopsylla pyri request pdf.
Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots. Fruit tree phytoplasmas are transmitted by different cacopsylla spp. Phenology of fall dispersal into apple orchards is described for winterform pear psylla, cacopsylla pyricola foerster, in orchards located in yakima and wenatchee, washington. Psylla pyri damages pear trees by sucking the plant sap. 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. Anthocoridae is one of the most prominent predators of the pear psylla, cacopsylla pyricola forster hemiptera. In order to investigate the effects of plant varieties on predation of c. The genus includes most of the psylla harmful to fruit trees species. Cacopsylla is a genus of bugs in the psyllidae family, the jumping plant lice.
With some insecticides, mortality was noted after 24 hours. 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. Seasonal variation in susceptibility of the pear psyllid, cacopsylla. Insecticidal potential of clove essential oil and its. Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family psyllidae. 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. Cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Psyillidae ili kruskina buha, predstavlja najvaznijeg ekonomskog stetnika u vocnjacima kruske. Incidence of candidatus liberibacter europaeus and. Originating in europe and asia, it has spread to north america. 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. 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.
The most important periods of treatment are at the time when eggs are laid by females as well as during the egg hatching and. A phenological model of first and secondgeneration pear psylla, cacopsylla pyri l. Jerinicprodanovic faculty of agriculture, university of belgrade, nemanjina 6, 11080 zemun, serbia abstract. Possible phytoplasma transovarial transmission in the. Request pdf phenological model of pear psylla cacopsylla pyri a phenological model of first and secondgeneration pear psylla, cacopsylla pyri l. Pdf testing spirotetramat as an alternative solution to. Efficacy of spirotetramat in the control of pear psylla. Continuing to use this website means you agree to our use of cookies. Topical application bioassays, conducted on french populations of cacopsylla pyri, showed resistance rates to deltamethrin ranging from 31.
Additionally, the leafhopper asymmetrasca decedens synonym empoasca decedens has been suggested as a potential vector of this phytoplasma pastore et al. Hemiptera psyllidae is one of the most important pests of pear orchards in europe that reduces the market value of pears. Pdf the past and present of pear protection against the. We do not use these to store personal information about you. The past and present of pear protection against the pear psylla, cacopsylla pyri l. The male of banasa chaca thomas is described with emphasis on external and internal genitalia and the female internal genitalia is described.
Thus, there is a widespread interest in the search for suitable. 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. Retrieved 20 april this can sometimes lead to deformation of the leaves. They are tebufenpyrad as active matter, sodium lauryl sulfate sls as anionic surfactant, modified starch, dextrin powder and some fillers. Effects of kaolin on some biological properties of pear.
Control measures are directed specifically at controlling pear psylla and require accurate and timely information about insect densities in the orchard. Pdf following the survey of the proposed and applied methods the washdown procedure has been evaluated to collect the pear psylla larvae cacopsylla. Mogucnosti suzbijanja kruskine buhe cacopsylla pyri l. The model included a timedistributed delay and was based on authors. Pdf zusammenfugen online pdf dateien zusammenfugen. Ecological and genetic differences between cacopsylla. Psyllid training school neustadt w, germany, 19th23rd april 2010 ii. Cacopsylla pyri behaviour on new pear selections for host. Pdf merge combinemerge pdf dateien online kostenlos deftpdf. Biocontrol companies suggest spring release of 1500 adult a.
Different life stages of the progeny of infected female psyllids were analysed by pcr detection of phytoplasma dna. The size of fruit is decreased and tree growth is diminished. Psyllidae and is considered as a biological control agent against this pest. Prunus species by the vector cacopsylla pruni carraro et al. Abstract although cacopsylla pyri forster and cacopsylla pyricola linnaeus have long been considered as more significant pests of pear trees. Dieses kostenlose tool erlaubt es mehrere pdfs oder bilddateien miteinander zu einem pdfdokument zu verbinden.
Cacopsylla pyri psylpioverview eppo global database. Proucavajuci zastupljenost kruskinih lisnih buva u srbiji, pavicevic 1977 je utvrdila i prirodne neprijatelje c. Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family. The most frequent method is chemical method applied. Diversity of phytoplasmas infecting fruit trees and their. The spiders were then placed singly in petri dishes diameter 6 cm, height 1 cm, area 000754 m 2. 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. Geographic and seasonal variability of resistance to insecticides in cacopsylla pyri l. 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. Different densities of adult cacopsylla 1, 3, 6, 10 and 20 were offered to. Pdf measuring pear psylla population density cacopsylla pyri l.
We compare sampling techniques and develop sampling methods for c. Rotenone, the only admitted product in swiss organic agriculture. Psyllidae is the most important harmful species in pear growing areas. Introduction in poland, the control programme for pear psylla cacopsylla pyri pres ently requires a few treatments. Psyllid training school neustadt w, germany, 19th23rd april 2010 cacopsylla pyricola vector of ca. Recently, the bacterium candidatus liberibacter europaeus was found in pear trees and in cacopsylla pyri linnaeus, the vector of ca. Documents about cacopsylla pyri psylpi this website uses cookies our website uses cookies to ensure that we give you the best possible online experience.
Dispersion patterns and sampling plans for diaphorina citri hemiptera. Tebufenpyrad 20 wp be effective on the cacopsylla pyri pest to protect the pears. If you are logged in, you can add new subtaxa, vernacular and scientific names, texts, images or intertaxon relationships for this taxon. Psyllids, as vectors of phloemrestricted plant pathogens, are serious agricultural pests. Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and. Psyllidae, is one of the principal pests of pear pyrus spp. The most frequent method is chemical method applied to control the pear psylla which is the main pest of pear. 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. Pdf zusammenfugen pdfdateien online kostenlos zu kombinieren. To make tebufenpyrad 20 wp needs some materials ingredients. Efficacy of different insecticides and a repellent against the european pear sucker cacopsylla pyri.
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