Identification of fruit tree phytoplasmas and their vector in bosnia and herzegovina eds. Evidence of a femaleproduced sex pheromone in the european. Demographic study of the reproductive potential of pear psylla. Tebufenpyrad 20 wp be effective on the cacopsylla pyri pest to protect the pears. The contact toxic effect of the insecticides on adults of c. Importance of alternative predators of pear suckers cacopsylla pyri in organic versus ipm pear orchards. Cacopsylla pyri behaviour on new pear selections for host. Polyphenolic profile of pear leaves with different resistance to pear psylla cacopsylla pyri milica m. The european pear sucker cacopsylla pyri, which appears in 46 generations each year, is one of the main pests of pear.
This page was last edited on 11 december 2019, at 12. Liberibacter, plant pathogens which cause severe diseases and economically important crop damage. Laboratory analyses showed the presence of phytoplasmas belonging to. Pdf the possible significance of various groups of. Psyllidae, is one of the principal pests of pear pyrus spp. Pdf testing spirotetramat as an alternative solution to. Cacopsylla pyri psylpihost plants eppo global database. Identification key for the central european cacopsylla species. Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots on leaves. Phytoplasma pyri is transmitted by cacopsylla pyri and cacopsylla pyricola. International organization for biological and integrated control of noxious animals and plants, west palearctic regional section iobcwprs. Regional resistance to insecticides in psylla pyricola from pear orchards in oregon1 volume 117 issue 5 p.
Metodika ochrany hrusni proti mere skvrnite cacopsylla pyri. Ecological and genetic differences between cacopsylla. Cacopsylla is a genus of bugs in the psyllidae family, the jumping plant lice. Effect secondaire du thirame tmtd sur cacopsylla pyri l.
Psylla pyri, commonly known as the pear psylla or pear psyllid, is a true bug in the family psyllidae. Topical application bioassays, conducted on french populations of cacopsylla pyri, showed resistance rates to deltamethrin ranging from 31. Abstract longevity and fecundity of pear psylla adults, cacopsylla pyri l. Psyllidae, is a common pest of pear orchards pyrus communis l. Pdf predators and parasitoids of cacopsylla pyri l. Opie young nymphs a few yellow eggs as well as droplets of honeydew can be seen arrowed cacopsylla pyri l. Sep 18, 2019 cacopsylla pyri pdf general information about cacopsylla pyri psylpi. While cacopsylla pyri linneaus, 1758 is the main pest in most of europe berrada et al. Role of cacopsylla pyri in the epidemiology of pear. Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots.
An cacopsylla pyri in nahilalakip ha genus nga cacopsylla, ngan familia nga psyllidae. Natic university of belgrade, faculty of agriculture, nemanjina 6, 11080 zemun, serbia. Files are available under licenses specified on their description page. This page was last edited on 1 december 2015, at 21. The response of 160 european pear genotypes to the attacks of cacopsylla pyri in natural conditions of infestation was studied in the ex situ germplasm collection of the ivalsa institute cnr located in follonica grosseto, italy during three. Both primers failed to amplify dna from representative species of the coccinellidae, chrysopidae, hemerobiidae. The genus includes most of the psylla harmful to fruit trees species. May 12, 2019 cacopsylla pyri pdf general information about cacopsylla pyri psylpi. The fact sheets contain information on name, synonyms, distribution and host plants as well as illustrations ofadultnymph headforewingparameredistal portion of aedeagusmale terminaliafemale terminaliadue to the high resolution of the graphics the download will. The agronomic importance of the hemiptera genus cacopsylla is due to the role that several of its species play in the transmission of phytoplasma diseases belonging to the apple proliferation cluster, including candidatus phytoplasma mali, ca. For two consecutive years, groups of insects caught monthly from march to october were used for transmission trials. Genetic analysis of resistance to azinphosmethyl in the pear psylla cacoppsylla pyri entomologica experimentalis et applicata, 96 159166.
Application of processed kaolin particle film surround wp. This page was last edited on 30 january 2014, at 14. The life cycle of pear decline phytoplasma in the vector cacopsylla pyri has been studied. Testing of alternative spray programs for controlling the. 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. Read comparative toxicities of some insecticides to cacopsylla pyri l. Unraveling the host plant alternation of cacopsylla pruni. Effects of photoperiod, time of year, temperature, and an insect growth regulator fenoxycarb on ovarian development rate in overwintering pear psylla, cacopsylla pyricola foerster, were determined. Overwintering females begin to lay eggs as early as in midfebruary, and the period of oviposition usually extends into late april. Molecular test to assign individuals within the cacopsylla. Importance of alternative predators of pear suckers. The past and present of pear protection against the pear.
Although cacopsylla pyri forster and cacopsylla pyricola linnaeus have long been considered as more significant pests of pear trees around the world, cacopsylla permixta burckhardt and hodkinson is the most significant pest in some parts of iran, especially in pear gardens of karaj. Although the percentage of pd positive psyllids was similar in both genders, pd phytoplasma transmission by females was significantly higher than by males. Dispersion patterns and sampling plans for diaphorina citri hemiptera. Text is available under the creative commons attributionsharealike license.
For two con secutive years, groups of insects caught monthly from. Control measures are directed specifically at controlling pear psylla and require accurate and timely information about insect densities in the orchard. The male of banasa chaca thomas is described with emphasis on external and internal genitalia and the female internal genitalia is described. Continuing to use this website means you agree to our use of cookies. Cacopsylla pyri pdf general information about cacopsylla pyri psylpi. Documents about cacopsylla pyri psylpi this website uses cookies our website uses cookies to ensure that we give you the best possible online experience. Pear psylla is one of the most important pests affect ing production of pears of pyrus communis parentage. Vector species are present and widespread in most countries of the european union and readily spread the disease within an orchard and to orchards in the close vicinity, if infested planting material is introduced. Cacopsylla pyri field trial mean number l1l3 on 10 marked shoots 3005 0 100 200 300 400 500 600 check tracer 480 sc, 144 g a. With some insecticides, mortality was noted after 24 hours.
Psyllidae, were studied in greece under field conditions, during 199192. Psylloidea recognised from testis structure and mitochondrial gene coi. An cacopsylla pyri in uska species han insecta nga syahan ginhulagway ni linnt hadton 1761. Polyphenolic profile of pear leaves with different resistance. All structured data from the file and property namespaces is available under the creative commons cc0 license. The most important periods of treatment are at the time when eggs are laid by females as well as during the egg hatching and. Efficacy of spirotetramat in the control of pear psylla. Lethalconcentration lc 50 values showed resistance levels from 12 to 41fold to. Apr, 2018 plant sap feeding insects like psyllids are known to be vectors of phloem dwelling bacteria candidatus phytoplasma and ca. Comparative toxicities of some insecticides to cacopsylla. Finally, in order to ascertain that the diagnostic pcr amplified only c.
Jun 16, 2019 cacopsylla pyri pdf upon their return, they planned to write a report about the situation and present it to the chinese government. The primers amplifying the 188 bp fragment amplified all four psyllid species tested, whereas the primers designed to amplify the 271 bp fragment did so exclusively for c. Stenorhyncha, psyllidae by juvenile hormone analogues. Jump to content jump to main navigation jump to main navigation. Role of cacopsylla pyri in the epidemiology of pear decline in spain. Efficacy of different insecticides and a repellent against. Over a period of 1 year, about 100 psyllids were collected monthly. Media in category cacopsylla pyri this category contains only the following file. Hemiptera psyllidae is one of the most important pests of pear orchards in europe that reduces the market value of pears. The frequency of pear declinepositive insects and transmission of pear decline pd phytoplasma by cacopsylla pyri in spain has been studied. Recent work has shown, however, that different populations with different transmission capacities might exist for a given vector species.
The efficacy of a given insecticide varied from year to year and from testing date to testing date within the same year. Psylla pyrarboris slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. In february march the overwintering adults start feeding and oviposition. Here you can download as pdf and print fact sheets for the 15 central european cacopsylla species associated with rosaceae. The relationship between pd positive cacopsylla pyri, pear decline phytoplasma transmission and the sex of the vector was also evaluated. The past and present of pear protection against the pear psylla, cacopsylla pyri l. Recommendation of the working group on the annexes of the.
Substrateborne vibrational communication in the vector of. They are tebufenpyrad as active matter, sodium lauryl sulfate sls as anionic surfactant, modified starch, dextrin powder and some fillers. We do not use these to store personal information about you. Psyllids were used for experiments on phytoplasma transmission both to healthy pyrus communis trees and to an artificial feeding medium. Pdf management and control of insecticideresistant pear psylla. Opie adult feeding on the vein of a leaf of pear cacopsylla pyri l. Geographic and seasonal variability of resistance to insecticides in cacopsylla pyri l. The psylla was equally infective throughout the experimental period. Originating in europe and asia, it has spread to north america. Some univoltine psyllid species have a particular life cycle, within one generation they alternate two times between different host plant species. Testing spirotetramat as an alternative solution to abamectin. 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 20092011. High population densities can cause premature leaf drop, which results in reduced flowering the following year. Seasonal variation in susceptibility of the pear psyllid.
Thus, there is a widespread interest in the search for suitable. Cacopsylla pyri psylpioverview eppo global database. Cacopsylla is a large and difficult genus with genal cones and a pterostigma. One of a few species of cacop sylla that have a black spot on the inside edge of the forewing, but unlike c. 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. Role of cacopsylla pyri in the epidemiology of pear decline. Tim belien department of zoology pcfruit vzw, belgium. The genus includes most of the psylla harmful to fruit trees. Dec 10, 2019 the obtained results show for the first time the presence of substrateborne vibrational signals produced by males and females during courtship behavior in this species, and allow a direct comparison with signals of congeneric species cacopsylla pyri linnaeus, 1758 hemiptera. It is a pest of pear trees, sucking the sap, damaging the foliage, flowers and fruit and diminishing the crop. Categories have been assigned by the eppo secretariat on the basis of available data at the time of entry. Effects of some insecticides on pear psylla cacopsylla pyri. Cacopsylla pyri psylpidocuments eppo global database. Testing spirotetramat as an alternative solution to abamectin for cacopsylla pyri hemiptera.
Trials by cacopsylla pyri, collected from pear decline infected orchards in turkey. Cacopsylla pyri, cacopsylla pyricola, and cacopsylla pruni, and also putative vectors like cacopsylla pyrisuga, cacopsylla bidens or cacopsylla affinis. The past and present of pear protection against the. They correspond to an evaluation of the biological importance of the host plant for the pest concerned, together with the economic importance of this plant for the eppo region. Psyllidae, offers an opportunity for sloweracting fungal entomopathogens because it is a foliage feeder that does not directly damage fruit, allowing time for spores to germinate, infect, and kill psyllids before damage occurs.
Engelhard corporation, iselin, nj, usa repels insects without lethal effects. Introduction in poland, the control programme for pear psylla cacopsylla pyri pres ently requires a few treatments. Testing spirotetramat as an alternative solution to. To make tebufenpyrad 20 wp needs some materials ingredients. Over a period of 1 year, about 100 psyllids were collected monthly from pear trees, cv. Psyllidae in serbia article pdf available january 2010 with 157 reads how we measure reads. Current control strategies against this pest in iran generally involve five or six insecticide treatments each. Polyphenolic profile of pear leaves with different. Pubag main content area impact of kaolin particle film, spirodiclofen acaricide, harpin protein, and an organic biostimulant on pear psylla cacopsylla pyri hemiptera. Kocourek and others published management and control of insecticideresistant pear psylla cacopsylla pyri find.
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