Ancylis Comptana Research Articles

Description of a new species in the genus Ancylis Hübner, 1825 from the Canary Islands and additional faunistic information (Lepidoptera: Tortricidae, Enarmoniini)

A new species from the Canary Islands is described in the genus Ancylis Hübner, 1825 (Lepidoptera: Tortricidae, Enarmoniini), Ancylis klimeschana spec. n. This new species differs from all other species in the genus by the structure of the wing pattern and in the female genitalia especially the shape of the sterigma. The new species is compared with Ancylis comptana (Frölich, 1828) and A. sparulana (Staudinger, 1859). A. comptana is reported from the Balearic Islands for the first time.

Strawberry Leafroller Ancylis comptana (Frölich) (Insecta: Lepidoptera: Tortricidae)

This EDIS publication is an alternate version of a page published first on the Featured Creatures website. The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids and other organisms relevant to Florida. These profiles are intended for the use of interested laypersons with some knowledge of biology as well as academic audiences. This 3-page fact sheet that discusses the strawberry leafroller was written by Justin Renkema, and published by the UF Entomology and Nematology Department, February 2016.
 EENY644/IN1118: Strawberry Leafroller Ancylis comptana (Frölich) (Insecta: Lepidoptera: Tortricidae) (ufl.edu)

Leafroller parasitism across an orchard landscape in central Washington and effect of neighboring rose habitats on parasitism

Parasitism of sentinel leafroller larvae of Pandemis pyrusana and Choristoneura rosaceana (Tortricidae) was measured in apple, pear and cherry orchards within a 680ha landscape mosaic in south-central Washington in 1999–2000. Average seasonal rates of parasitism of sentinel larvae were 12% in spring and 29.6% in summer corresponding to the overwintering and summer larval cohorts of pest leafroller generations. Tachinidae accounted for 72% of spring and 79% of summer parasitism compared to 9.2% and 7.6% by the exotic parasitoid, Colpoclypeus florus (Eulophidae), 14% and 0.9% by Apanteles polychrosidis and 3.9% and 12.2% by Oncophanes americanus (Braconidae), respectively. Parasitism rates of sentinel larvae in autumn increased to 81%, of which 55% was by C. florus and 44% was by tachinids. A significant decline in parasitism with increasing distance from the Yakima River was evident for C. florus (P<0.0001), O. americanus (summer only, P=0.011) and A. polychrosidis (P=0.018). No statistically significant association of parasitism with pesticide use was detected. Sentinels larvae placed in two orchards adjacent to patches of the Wood’s Rose, Rosa woodsii (Rosaceae), that harbored the strawberry leafroller, Ancylis comptana (Tortricidae), showed parasitism rates by C. florus approaching 100% in spring at one site and in summer at a second site. These studies show that proximity to riparian habitats is associated with higher parasitism of leafrollers for three parasitoids. The presence of the non-pest leafroller, A. comptana, infesting R. woodsii may represent a valuable overwintering host for C. florus leading to increased parasitism of pest leafrollers by C. florus in commercial fruit orchards. Experimental creation of rose habitats to test this concept is indicated.

Parasitism of leafrollers in Washington fruit orchards is enhanced by perimeter plantings of rose and strawberry

Pandemis pyrusana and Choristoneura rosaceana (Lepidoptera: Tortricidae) are dominant leafroller pests in fruit orchards in Washington State. Parasitism rates of orchard leafrollers are low in spring and moderate in summer. In a previous study, parasitism rates of leafrollers were high in two orchards adjacent to thickets of Rosa woodsii. Here we show that plantings of R. woodsii and strawberry can significantly increase parasitism rates of leafrollers in adjacent orchards. In late summer of 2000, R. woodsii and strawberries were planted near four apple orchards and plantings were infested with the strawberry leafroller, Ancylis comptana, which overwinters as mature larvae on rose. In fall, these larvae were parasitized by Colpoclypeus florus (Hymenoptera: Eulophidae), a leafroller parasitoid of European origin that was recently discovered in central Washington. In the following spring of 2001, moderate rates of parasitism by C. florus were observed on P. pyrusana larvae placed along transects in apple orchards up to 200m from three experimental plantings. Parasitism by C. florus increased in summer and was observed up to 500m from the plantings. This pattern of parasitism by C. florus was observed through 2005 at one site. In contrast, little or no parasitism by C. florus was observed at these sites in 1999 and 2000 before planting of the rose habitats. Using a protein marking technique, self-marked C. florus originating from a marked rose planting were captured up to 100m away in an adjacent orchard. We conclude that rose and strawberry plantings showed potential value as a sustainable landscape modification to improve biological control of leafrollers in Washington fruit orchards.

Overwintering Hosts for the Exotic Leafroller Parasitoid,Colpoclypeus florus: Implications for Habitat Manipulation to Augment Biological Control of Leafrollers in Pome Fruits

Thirty sites of managed and native habitats were surveyed for leafrollers (Lepidoptera: Tortricidae) in the apple producing region of central Washington State and northern Oregon from September through November 1997–2000 to discover species that supported overwintering by the parasitoid Colpoclypeus florus (Walker) (Hymenoptera: Eulophidae). C. florus, a species introduced from Europe, requires medium to large host larvae late in autumn on which to overwinter, and few leafroller species display this biology. Over the four years, five potential C. florus hosts were collected, including: Ancylis comptana (Froelich), Xenotemna pallorana (Robinson), and Syndemis sp. (Tortricidae), Filatima sp. (Gelechiidae), and Caloptilia burgessiellia (Zeller) (Gracillariidae). Of these, A. comptana, Syndemis sp., and Filatima sp. have been confirmed as overwintering hosts for C. florus. During the four years, the Syndemis sp. was rare and observed at only one location feeding on redosier dogwood, Cornus sericea L. (Cornales: Cornaceae) although, at this location, many of the larvae collected were parasitized by C. florus. Filatima sp. was common in the Yakima valley feeding on balsam poplar, Populus balsamifera L. ssp. trichocarpa (Torr. & Gray ex Hook) Brayshaw (Malpighiales: Salicaceae) but was rarely parasitized. A. comptana, however, was collected at many locations in central Washington and was frequently found as an overwintering host for C. florus. A. comptana was found feeding on two Rosaceae: Wood's rose, Rosa woodsii Lindl., and strawberry, Fragaria ananassa Duchesne (Rosales: Rosaceae). Based on the number of host larvae collected, A. comptana appears to be the primary overwintering host for C. florus in Washington. Introduction of A. comptana populations to near-orchard habitats may facilitate biological control of leafrollers that are orchard pests.

Larval and Pupal Parasitism of the Strawberry Leafroller (Lepidoptera: Tortricidae)

Fourteen parasitoid species were recovered from strawberry leafroIler, Ancylis comptana (Froelich), larvae and pupae collected in central Iowa strawberry fields in 1987 and 1989. Parasitism by the two most abundant parasitoid species, Itoplectis conquisitor (Say) (Hymenoptera: Ichneumonidae) and Pediobius facialis (Giraud) (Hymenoptera: Eulophidae), was synchronous with high A. comptana pupal densities. This is the first study in North America in which I. conquisitor and P. facialis were the predominant parasitoids attacking immature A. comptana . In 1987, cumulative percentage parasitism of the first A. comptana generation increased to 7% on 24 June. In 1989, the cumulative percentage parasitism of the first larval generation increased to 5.5% on 23 June. Because strawberries have a relatively high tolerance for A. comptana leaf rolling and feeding activity, naturally occurring parasitoids should be conserved.

Dormancy in the Strawberry Leafroller (Lepidoptera: Tortricidae)

A 2-yr study of strawberry leafroller, Ancylis comptana (Froelich), populations in central Iowa showed that short daylengths and low temperatures maintain diapause during autumn and that this autumnal diapause ends without a specific cue by the end of December. The completion of diapause does not require chilling. The postdiapause developmental rate of A. comptana is linearly related to temperatures between 14 and 30°C; adult emergence requires 154 degree-days (DD) above a lower thermal threshold ( t ) of 10.5°C. Field cage studies demonstrated that 50% emergence of adult A. comptana from overwintering larvae can be predicted accurately based upon the accumulation of approximately 150 DD > 10°C.

Cultivar Acceptance and Suitability for Preimaginal Development of the Strawberry Leafroller (Lepidoptera: Tortricidae)

Preimaginal development and survival and female ovipositional responses of the strawberry leafroller, Ancylis comptana (Froelich), were similar on four commercial strawberry cultivars, Fragaria × Ananassa Duch. (‘Earliglow,’ ‘Honeoye,’ ‘Redcoat,’ and ‘Selva’) and wild strawberry, Fragaria virginiana Duch. All cultivars and F. virginiana were equally suitable for A. comptana preimaginal development. At 26°C and a photoperiod of 16:8 (L:D), developmental times ranged from 19.6 d on ‘Earliglow’ to 21.6 d on F. virginiana . Preimaginal survival ranged from 52% on ‘Redcoat’ to 68% on ‘Honeoye.’ No relationship was observed between ovipositional responses and trichome densities on the four cultivars and F. virginiana . In the laboratory, ‘Honeoye’ was slightly preferred by ovipositing females over ‘Earliglow,’ ‘Selva,’ and wild strawberry, but this preference was not apparent in field cage studies.

Thermal Requirements for Preimaginal Development of the Strawberry Leafroller (Lepidoptera: Tortricidae)

Preimaginal development rates (egg, larval, pupal, and egg to adult) for the strawberry leafroller, Ancylis comptana (Froelich), were determined at six constant temperatures: 14, 18, 22, 26, 30, and 34°C (±2°, 16:8 [L:D]). Total development was fastest at 30° (22.3 ± 0.2 d) and 26°C (28.1 ± 0.3 d); 108.5 ± 9.6 d were required for total development at 14°C. Survival was >75% between 18 and 30°C, but decreased to 31% at 14 and 34°C. Based on a linear model of the temperature–developmental rate relationship, K and t values were 78 DD (degree-days) above 10.3° for eggs, 254 DD above 9.7° for larvae, 100 DD above 10.9° for pupae, and 431 DD above 10.2°C for total preimaginal development. A four-parameter biophysical model of the temperature–development relationship indicated that high temperature inhibition occurred from 29 to 33°C for the preimaginallife stages. Field development of second- and third-generation egg and larval stages was predicted within three calendar days. Management of the strawberry leafroller is greatly facilitated by predicting egg hatch to synchronize control measures with the first instars, which do not exhibit leaf-rolling behavior.

Two Previously Unrecognized Scientific Names for the Strawberry Leafroller (Lepidoptera: Tortricidae)

Aneylis pulchellana (Clemens) (NEW COMBINATION) and A. lamiana (Clemens) (NEW COMBINATION) are conspecific with and predate A. comptana fragariac (Walsh & Riley) by 4 years. A. pulchellana has priority. These newly discovered identities are based on one authentic specimen of pulchellana and the lectotypes of lamiana and fragariae. Applicability of the European name A. comptana, (Froelich) to American populations needs reconfirmation. Reassigning pulchellana and lamiana to Ancylis reduces taxonomic confusion in Anchylopera.

Sex Pheromone Specificity Tests in the Tortricidae—an Introductory Report1

Laboratory and field tests were conducted with female sex pheromone extracts in 11 species of tortricids. These included Grapholitha molesta (Busck), Hedia nubiferana Haworth, Carpocapsa pomonella (L.), Paralobcsia viteana (Clemens), Ancylis comptana fragariae (Walsh & Riley), of the subfamily Olethreutinae, and Argyrotaenia velutinana (Walker) A. quadrifaciana Fernald, Archips argyrospilus (Walker), A. mortuanus Kearfott, Choristoneura rosaceana (Harris), and Pandcmis limitata (Robinson) of the Tortricinae. A slight male response to pheromone extracts of females in other species suggested similar but not identical pheromone structures. Field tests showed male specificity in all species with the exception of some attractancy of Archips mortuanus males to Argyrotaenia velutinana female extracts. Negative male stimulation was recorded in the field and laboratory with strawberry leaf roller, Ancylis c. fragariae female extract. Histological studies on the female pheromoneproducing glands revealed significant development of glandular epithelium between the eighth and ninth abdominal segments with all species except strawberry leaf roller moths.

A Laboratory Comparison of the Susceptibility of Four Leaf Rollers, Platynota flavedana, Olethreutes cespitana, Ptycholoma peritana, and Ancylis comptana fragariae to TDE and Parathion1

Platynota flavedana Clemens, Olethreutes cespitana Hubner, and Ptychaloma peritana (Clemens) often occur in numbers greater than the strawberry leaf roller, Ancylis camptana fragariae (Walsh & Riley), on Long Island, New York. A laboratory study was conducted in 1965 to compare the susceptibility of these 4 species TDE and parathion. Mortality of larvae after 48 hours of exposure to deposits of 0.0043, 0.0022, 0.0011, and 0.00055 µg/cm2 and 0.00009, 0.000045, 0.000023, and 0.000012 µg/cm2 of TDE and parathion, respectively, on excised strawberry leaflets, revealed a similar susceptibility to the toxicants by the 4 species. Therefore, it is suggested that TDE and parathion, as recommended for the control of A. c. fragariae in New York State, would suffice to control effectively the other economically important leaf roller species on Long Island.

Control of the Strawberry Leaf Roller, Ancylis comptana fragariae (Lepidoptera: Tortricidae)1

A considerable number of insecticides were evaluated in commercial strawberry plantings in western New York for the control of the strawberry leaf roller, Aneylis complana fragariae (Walsh & Riley). Of the materials applied during the hatching period, TDE, parathion, Guthion® ( O, O - dimethyl S -(4-oxo-1,2,3-benzotriazin-3(4 H )-ylmethyl) phosphorodithioate), and diazinon were the most effective. Zectran® (4-dimethylamino-3,5-xylyl methyl carbamate), in a single test, provided the best control. No treatment provided completely satisfactory control when applied near the end of larval development. Of the materials applied against established larvae populations, parathion at 0.5 lb actual per acre provided the highest kill. Very good control was provided also by mevinphos, diazinon, Guthion, and Stauffer N 2404 ( O -isopropyl- O( - (2-chloro-4- nitrophenyl) ethyl phosphorothioate).

The Strawberry Leaf Roller, Ancylis comptana fragariae (Walsh and Riley) (Lepidoptera: Tortricidae), as a Source of Overwintered Macrocentrus ancylivorus Rohwer (Hymenoptera: Braconidae) in Ontario

AbstractMacrocentrus ancylivorus Rohwer overwintered in larvàe of the strawberry leaf roller, Ancylis comptana fragariae (Walsh &amp; Riley), at the rate of from 544 to 7,623 per acre of strawberry field. Not more than 300 per acre of peach orchard, could be expected to overwinter in larvae of the Oriental fruit moth, Grapholitha molesta (Busck). About half of the larvae of M. ancylivorus in leaf rollers did not survive the winter.

Larvae of the North American Olethreutidae (Lepidoptera)

AbstractThe late-instar larvae of about 185 species of the North American Olethreutidae are described and most of them illustrated. Included in these are many pests, such as Grapholitha molesta, Carpocapsa pomonella, and Spilonota ocellana on fruit trees, Paralobesia viteana on grapes, Ancylis comptana fragariae on strawberries, Laspeyresia nigricana in pea pods, Laspeyresia caryana in hickory and pecan nuts, Taniva albolineana in spruce needles, and species of Rhyacionia and Petrova on pines. Keys to species groups and to individual species are provided. Of the diagnostic and specialized characters listed, the most useful include the setae, the spinneret, and the shape of the larva, especially of its head and anal shield. The main characters are given for the postulated ancestral larva and for the highly developed larva. Most of the species groups are arranged according to the suggested phylogenetic relationship of their larvae, emphasizing the necessity of a revision of the family. Larvae of some genera previously difficult to classify, such as Pseudogalleria and Hystricophora, indicate the relationship of those genera to other groups; conversely, lack of relationship is clearly shown in other instances, e.g., between Carpocapsa pomonella and Carpocapsa saltitans, and between the two species Epiblema culminana and E. suffusana and other members of the genus Epiblema.

Effectiveness of Macrocentrus ancylivorus. Reared from Strawberry Leaf Roller in Parasitizing Oriental Fruit Moth

Effectiveness of Macrocentrus ancylivorus. Reared from Strawberry Leaf Roller in Parasitizing Oriental Fruit Moth

Life History of the Western Strawberry Leaf Roller with Notes on Its Control

Life History of the Western Strawberry Leaf Roller with Notes on Its Control

Control of the American Strawberry Leaf Roller, Ancylis fragariae, in the Lower Missouri River Valley*

Journal Article Control of the American Strawberry Leaf Roller, Ancylis fragariae, in the Lower Missouri River Valley Get access Paul. G. Lamerson, Paul. G. Lamerson Kansas Agricultural Experiment Station, Manhattan Search for other works by this author on: Oxford Academic PubMed Google Scholar Ralph L. Parker Ralph L. Parker Kansas Agricultural Experiment Station, Manhattan Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 32, Issue 6, 1 December 1939, Pages 824–828, https://doi.org/10.1093/jee/32.6.824 Published: 01 December 1939

Strawberry Leaf Roller Control by Nonpoisonous Insecticides1

Strawberry Leaf Roller Control by Nonpoisonous Insecticides1

Macrocentrus Ancylivora Rohr. and M. Delicatus Cress. Distinct Species.*

The Braconid parasite Macrocentrus ancylivora Rohr. was described in 1923 by Rohwer (6) from specimens reared by Fink (3) from the strawberry leaf roller Ancylis comptana Froehl. Stearns (7) proved in cross-breeding experiments that Macrocentrus bred from the strawberry leaf roller and from the larvæ of the oriental fruit moth were the same species. Macrocentrus ancylivora Rohr. has been recorded as a parasite of the oriental fruit moth from Virginia, Maryland, Pennsylvania, New Jersey, Connecticut, New York and Ohio.