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A. F. Safonkin - One of the best experts on this subject based on the ideXlab platform.
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The “lock-and-key” hypothesis as related to the ionizing radiation effect on genital cuticular structures in the large fruit-tree Tortrix Archips podana (Lepidoptera, Tortricidae)
Entomological Review, 2011Co-Authors: A. F. SafonkinAbstract:The influence of sublethal doses of ionizing radiation on cuticular structures of the reproductive apparatus of the large fruit-tree Tortrix moth was studied. The variability of cuticular teeth of the aedeagus and cuticular projections of the antrum was studied in laboratory cultures after irradiation and in the control. After irradiation of the pupae, numerous protuberances or irregularly arranged small denticles were observed over the entire cuticle of the genitalia. Additional teeth appeared on the aedeagus. The lateral tooth of the aedeagus was more strongly affected by irradiation than the apical one. The influence of irradiation is mostly manifested within the first 24 h of pupa formation. The functional significance of teeth of the aedeagus and projections of the antrum during mating is considered. Based on the variability of aedeagus teeth and external cuticular projections at the antrum inflexion, the applicability of the “lock-and-key” hypothesis to evolution of copulation mechanism in the large fruit-tree Tortrix moth is considered.
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Variation in sex pheromone composition in large fruit-tree Tortrix Archips podana Scop. (Lepidoptera: Tortricidae)
Izvestiia Akademii nauk. Seriia biologicheskaia, 2006Co-Authors: A. F. Safonkin, V I BykovAbstract:Variation in sex pheromone composition was studied in large fruit-tree Tortrix. The pheromone contained cis-11-tetradecenyl acetate and trans-11-tetradecenyl acetate as macrocomponents as well as microcomponents cis-11-tetradecenol and trans-11-tetradecenol with the prevalence of cis-11-tetradecenyl acetate and cis-11-tetradecenol. The pheromone composition depended in part on the genotype of the male parent. Inbreeding increased the proportion of trans-11-tetradecenyl acetate and trans-11-tetradecenol.
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Variation in antennal sensory system in different phenotypes of large fruit-tree Tortrix Archips podana scop. (Lepidoptera: Tortricidae)
Biology Bulletin, 2006Co-Authors: T. A. Triseleva, A. F. SafonkinAbstract:Quantitative composition of antennal sensilla was studied in different phenotypes of large fruit-tree Tortrix imago. Changes in the number of sensilla were observed in individuals reared on lilac: male phenotypes AB and B differed by the number of chaetoid, coeloconic, auriculate, and basiconic sensilla; female offspring of males with AB and B phenotypes differed by the number of short trichoid sensilla and auriculate sensilla of the first type. The relationship between male phenotype and the number of sensilla as well as the impact of parental male genotype on the variation in antennal sensory system in female offspring are discussed.
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Fertility of large fruit-tree Tortrix Archips podana Scop. (Lepidoptera: Tortricidae) on different edible plants
Izvestiia Akademii nauk. Seriia biologicheskaia, 2005Co-Authors: A. F. Safonkin, T. A. TriselevaAbstract:We studied pupal weight, fecundity, and potential and achieved fecundity of imagoes of large fruit-tree Tortrix Archips podana Scop. for caterpillars reared on apple, currant, pear, lilac, and plum plants. Pupal weight had no effect on fecundity in the first generation but was reflected in the second generation. The dependence of potential and achieved fecundity of imago on pupal weight was nonlinear with a trend to optimum within certain limits.
Carroll Juliet - One of the best experts on this subject based on the ideXlab platform.
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Variegated Golden Tortrix
New York State IPM Program, 2018Co-Authors: Carroll Juliet, Mattoon NicoleAbstract:NYS IPM Type: Invasive and Exotic Fact SheetVariegated golden Tortrix is a leafroller native to Europe and Asia. Also known as apple leafroller or brown oak Tortrix, variegated golden Tortrix is able to feed on the buds, foliage, flowers, and fruit of many plants. Therefore, this insect may present a threat to fruit crops, particularly Rosaceous plants such as apples, sweet cherry, tart cherry, peaches and pears. While not considered to be a major pest in its native regions, if introduced into the United States where there are no natural enemies, the variegated golden Tortrix could build up damaging populations
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Orchard Commodity Survey – 2018
New York State Integrated Pest Management Program, 2018Co-Authors: Carroll JulietAbstract:NYS IPM Type: Project ReportAn Orchard Commodity Cooperative Agricultural Pest Survey was conducted for exotic insects and diseases including summer fruit Tortrix (SFT), variegated golden Tortrix (VGT), velvet longhorned beetle (VLB), spotted lanternfly (SLF), apple proliferation phytoplasma (APP) and latent apple viruses. All the agricultural pests in the survey pose significant threats to NY fruit industries
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Summer Fruit Tortrix Moth
New York State IPM Program, 2018Co-Authors: Carroll Juliet, Peterson KelseyAbstract:NYS IPM Type: Invasive and Exotic Fact SheetThe summer fruit Tortrix moth is an insect pest native to Europe and Asia. It primarily feeds on apples, cherries, and pears, though it has over 50 other plant hosts. While summer fruit Tortrix has yet to be discovered in the United States, its arrival and establishment could be devastating
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Cherry Bark Tortrix Moth
New York State IPM Program, 2018Co-Authors: Carroll Juliet, Della Rosa LindaAbstract:NYS IPM Type: Invasive and Exotic Fact SheetA relatively new exotic pest in North America, cherry bark Tortrix was found in British Columbia in 1989, in Washington in 1991, spread to Oregon, and has now established itself as a pest of ornamental cherries in the Pacific Northwest. Cherry bark Tortrix is known throughout Europe, south to coastal North Africa and west to Siberia. In its native homeland, because parasitic wasps and other natural enemies keep populations low, it rarely causes economic damage or requires treatment. However, because cherry bark Tortrix is an introduced pest in the Pacific Northwest, natural enemies have not yet appeared to a significant degree. Larvae tunnel into the bark and feed on phloem tissues, causing damage to trunks and major limbs. The insect infests trees in the rose family, including cherry and apple
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Orchard Commodity Survey – 2017
New York State Integrated Pest Management Program, 2017Co-Authors: Carroll JulietAbstract:NYS IPM Type: Project ReportAn Orchard Commodity Cooperative Agricultural Pest Survey was conducted for exotic insects and diseases including cherry bark Tortrix (CBT), variegated golden Tortrix (VGT), European cherry fruit fly (ECFF), spotted lanternfly and apple proliferation phytoplasma (APP). All the agricultural pests in the survey pose significant threats to NY fruit industries. In addition, under this project Carroll assisted Marc Fuchs, Plant Pathology and Plant-Microbe Biology, by collecting samples from three orchards to test for latent apple viruses, which may be associated with tree decline. This effort was part of a larger project and detailed results are not included here
Marion Gratwick - One of the best experts on this subject based on the ideXlab platform.
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Tortrix moths on strawberry
Crop Pests in the UK, 1992Co-Authors: Marion GratwickAbstract:Caterpillars of several species of Tortrix moth can cause damage to strawberry. By far the most important in Britain are the strawberry Tortrix (Acleris comariana (Lienig & Zeller)), the straw-coloured Tortrix (Clepsis spectrana (Treitschke)) and the dark strawberry Tortrix (Olethreutes lacunana (Denis & Schiffermuller)), but damage is also caused locally by other species including the carnation Tortrix (Cacoecimorpha pronubana) (Hubner)) and the flax Tortrix (Cnephasia asseclana (Denis & Schiffermuller)).
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Tortrix moths on apple
Crop Pests in the UK, 1992Co-Authors: Marion GratwickAbstract:Caterpillars of many species of Tortrix moth are found on fruit trees, but the majority feed only on foliage or occur in such small numbers that they are not regarded as important pests. The caterpillars of certain species, however, also feed regularly on the fruit. These include the fruitlet mining Tortrix (Pammene rhediella (Clerck)), which attacks apples and plums in June and July, the summer fruit Tortrix (Adoxophyes orana (Fischer von Roslerstamm)), which damages apples and pears in July and August, and the fruit tree Tortrix (Archips podana (Scopoli)), which attacks maturing apples from late August until harvest.
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Plum fruit moths
Crop Pests in the UK, 1992Co-Authors: Marion GratwickAbstract:Caterpillars of many species of moth occur on plum trees, but the majority feed only on the foliage and usually occur in small numbers. However, caterpillars of two species feed on the fruits. These are the plum fruit moth (Cydia funebrana (Treitschke)) and the fruitlet mining Tortrix (Pammene rhediella (Clerck)). Both species are widely distributed in Britain; plum fruit moth is the more common pest, whereas fruitlet mining Tortrix occurs sporadically and is less often noted attacking plum. Caterpillars of the plum fruit moth normally feed on the fruits of blackthorn (sloe) but are also locally common pests of cultivated plum and damson. They attack the fruits from June to September and often cause considerable losses. Caterpillars of the fruitlet mining Tortrix feed on hawthorn berries and sometimes also attack fruits of plum and apple in late May, June and July. For the description of the fruitlet mining Tortrix on apple, see page 137.
T. A. Triseleva - One of the best experts on this subject based on the ideXlab platform.
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Variation in antennal sensory system in different phenotypes of large fruit-tree Tortrix Archips podana scop. (Lepidoptera: Tortricidae)
Biology Bulletin, 2006Co-Authors: T. A. Triseleva, A. F. SafonkinAbstract:Quantitative composition of antennal sensilla was studied in different phenotypes of large fruit-tree Tortrix imago. Changes in the number of sensilla were observed in individuals reared on lilac: male phenotypes AB and B differed by the number of chaetoid, coeloconic, auriculate, and basiconic sensilla; female offspring of males with AB and B phenotypes differed by the number of short trichoid sensilla and auriculate sensilla of the first type. The relationship between male phenotype and the number of sensilla as well as the impact of parental male genotype on the variation in antennal sensory system in female offspring are discussed.
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Fertility of large fruit-tree Tortrix Archips podana Scop. (Lepidoptera: Tortricidae) on different edible plants
Izvestiia Akademii nauk. Seriia biologicheskaia, 2005Co-Authors: A. F. Safonkin, T. A. TriselevaAbstract:We studied pupal weight, fecundity, and potential and achieved fecundity of imagoes of large fruit-tree Tortrix Archips podana Scop. for caterpillars reared on apple, currant, pear, lilac, and plum plants. Pupal weight had no effect on fecundity in the first generation but was reflected in the second generation. The dependence of potential and achieved fecundity of imago on pupal weight was nonlinear with a trend to optimum within certain limits.
Yukio Kosugi - One of the best experts on this subject based on the ideXlab platform.
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Flight activity of the smaller tea Tortrix, Adoxophyes honmai (Lepidoptera: Tortricidae)
Applied Entomology and Zoology, 2000Co-Authors: Yoichi Shirai, Yukio KosugiAbstract:Effects of sex, age, mating status and temperature on flight activity of the smaller tea Tortrix, Adoxophyes honmai, were evaluated by a computer-aided flight mill system. Flight activity of both sexes peaked at 2 days old and they were capable of flying about 5 km a night. Between 1 and 4 days old, there was no significant difference in flight activity between the sexes, while females flew longer than males between 5 and 8 days old. Mating status, whether mated or unmated, did not affect flight activity of females. Both females and males flew most actively at 23°C, and their continuous long flights were reduced at temperatures under 18°C. Compared with flight activity of another tea Tortrix, Homona magnanima, males of both species showed an identical pattern of age-specific flight, and flight activity of females of H. magnanima peaked at 5 days old, later than conspecific males. Suitable temperatures for female flight ranged from 20.5 to 28°C in A. honmai, and 15.5 to 23°C in H. magnanima.
