PARASITOIDS ASSOCIATED WITH THE LARGE ASPEN TORTRIX, CHORISTONEURA CONFLICTANA (LEPIDOPTERA: TORTRICIDAE), IN INTERIOR ALASKA

Abstract

Can. Ent. 106: 1241-1246 (1974) A procedure is described for evaluating commercial residual pesticides commonly used for house fly control. Blotting paper panels were treated with candidate products and aged up to 5 weeks. During aging, these panels were tested thrice at 1 , 3, and 5 weeks after their treatment for efficacy based on mortality of female house flies exposed to them for 24 h in a cage. A product is reported satisfactory if the -average percentage kill obtained is not less than 80, 60, and 50 at 1, 3, and 5 weeks aging respectively or within 5 percentage points less than these limits. A product meeting first and third week mortality limits is also considered acceptable.

Parasitism of the Spring Leafroller (Lepidoptera: Tortricidae) Complex in Organically Managed Apple Orchards in The North Okanagan Valley of British Columbia

“…Two specimens of a second species of Glypta, G. erratica Cresson, were reared in two orchards in 2001 (one from P. limitata and one from an unidentified leafroller larva). Glypta erratica is a widespread species (Alaska to Oregon and Newfoundland to North Carolina) (Dasch 1988) and has been previously reared from several species of leafrollers and budworms in the genera Pandemis Hü bner (Dasch 1988) and Choristoneura Lederer, including C. conflictana in Alaska (Torgersen & Beckwith 1974), C. pinus Freeman in Michigan (Allen et al 1969) and C. rosaceana in Nova Scotia and Ontario (Dasch 1988). Dasch (1988) also recorded G. erratica as reared from P. limitata in British Columbia as well as from Pandemis canadana Kearfott in Alberta, so our rearing of G. erratica from P. limitata in the Okanagan is not unexpected.…”

Contrasting drivers and trends of coniferous and deciduous tree growth in interior Alaska

“…However, our results may be the first to demonstrate these effects on such a broad scale in interior Alaska. It is also worth noting that our aspen tree‐ring chronology revealed a large growth reduction in 1966–1969, which may have been driven by a major outbreak of the large aspen tortrix ( Choristoneura conflictana Wlkr), a defoliator that affected approximately 2.5 million hectares in interior Alaska in the late 1960s (Torgersen and Beckwith ).…”

Review and identification keys to the ichneumonid parasitoids (Hymenoptera: Ichneumonidae) of Nearctic Choristoneura species (Lepidoptera: Tortricidae)

“…in North America. Niwa et al 1987;Schaupp et al 1991 Erigorgus stenotus Bradley 1974;Blais 1960;Stevens et al 1977;Schaupp et al 1991 E. turgidus 1955;Dasch 1988;Schaupp et al 1991;Hagley and Barber 1992 G. imitator Dowden et al 1950;Wilkes et al 1948; this study Torgersen and Beckwith 1974;Bradley 1974;McGregor 1970;McKnight 1974;Li et al 1999 I. vesca Table 3 (continued). Hagley and Barber 1992 Table 3 (continued).…”

“…I could not add scale bars because they were not present on the original drawings and intraspecific size variation of many species precluded accurate estimation. Leonard and Simmons 1974;Carolin and Coulter 1959;Carlson 1979 A. pronexus Cappuccino et al 1998;Hamel 1977;Walley 1953;Li et al 1999 A. picticornis Torgersen and Beckwith 1974;Blais 1960;Stevens et al 1977;McKnight 1974;Nealis 1991;Carlson 1979 Dusona seamansi Coop et al…”

“…× Alaska., B.C., Calif., Tex. Torgersen and Beckwith 1974;Schaupp et al 1991;Li et al 1999 Triclistus emarginalus C. retiniana; and ro, C. rosaceana. "×" denotes a rearing record; "-" denotes a lack of rearing record; "I" denotes an introduced (either deliberately or accidentally) species; and "×?"…”