Bionomics and Control of Lithocolletis blancardella in Michigan12

Can. Ent. 115: 1203-1208 (1983) Adult emergence of the spotted tentiform leafminer, Phyllonorycter blancardella (F.), and its primary endoparasite, Apanteles ornigis Weed, from overwintering pupae was studied at five constant temperatures. Days to 50% emergence for P. blancardella were 55.4, 24.4, 14.4, 10.8, and8.3andforA. ornigiswerem,47.8, 25.6, 17.6, and 15.1 at 8", 12", 16", 20°, and 24"C, respectively. The rate of pupal development was approximately a linear function of temperature for P. blancardella but was nonlinear for A. ornigis. The threshold of development, estimated from the 50% emergence data,

Section: Methodsmentioning

confidence: 99%

PHAGODETERRENCY INDUCED BY TWO CRUCIFEROUS PLANTS IN ADULTS OF THE FLEA BEETLE PHYLLOTRETA STRIOLATA (COLEOPTERA: CHRYSOMELIDAE)

Meisner

Mitchell

1983

“…)] is an important pest of apple in eastern Canada (Pottinger and LeRoux 1971;Free et al 1980) and in the eastern United States (Dutcher and Howitt 1978;Weires et al 1980). )] is an important pest of apple in eastern Canada (Pottinger and LeRoux 1971;Free et al 1980) and in the eastern United States (Dutcher and Howitt 1978;Weires et al 1980).…”

Section: Introductionmentioning

confidence: 99%

EFFECT OF FOOD SOURCES ON THE LONGEVITY AND FECUNDITY OF PHOLETESOR ORNIGIS (WEED) (HYMENOPTERA: BRACONIDAE)

Hagley

Barber

1992

Can. Ent. 124: 341-346 (1992) The fecundity of first-generation adult Pholetesor ornigis (Weed) increased when individuals were confined with flowers of creeping "Charlie" (Glechoma hederacea L.), dandelion (Tarmacum oficinale Weber). and apple (Malus domesricus L.), but not with blossoms of chickweed [Stellaria media (L.) Cyril101 or Shepherd's purse [Capsella bursa-pastoris &.) Medic]. Longevity of P. ornigis was little affected. The fecundity of second-generation P. ornigis increased when individuds were confined with terminal leaves of apple with honeydew of the aphid Aphispomi DeGeer, but not when confined with terminal leaves without honeydew or with flowers of round-leaved mallow (Malva neglecta Wallr.) or red clover (Trifolium prateare L.). Longevity of P. ornigis adults also increased when they were provided with aphid honeydew. There were significant differences between the total number (oviwsited and ovarian) of engs produced by second-generation females given different f o d sources. Those given a&; d honeydew oviposited a greater proportion of their eggs than those confined with apple leaves without honeydew or with flowers of M. neglects or T, pratense. Adult P. orniRis fed ,an aqueous solution of honey (5050, vfv) lived longest and produced more eggs than those provided with any other food source. Hagley, E.A.C., et D.R. Barber. 1992. Effet de divers types de noumture sur la longkvit6 et la fkconditk de Pholetesor ornigis (Weed) (Hymenoptera: Braconidae). Can. Ent. 124: 341-346. La feconditk des adultes de la premikre gentration de Pholetesor omigis (Weed) augmente chez les individus enfermCs avec des fleurs du glCcome lierre (Glechoma hederacea L.), du pissenlit (Taraxacum officinale Weber), ou du pornmier (Malus domest i c~ L.), mais pas chez les individus enfemes avec des fleurs de la stellaire moyenne [Sfelloria media (L.) Cyrillo] ou de la capselle bourse B pasteur [Capsella bursapasroris (L.) Medic]. La IongCvitC de I'espike est peu affect& par la nature de la plante.La fkonditk des adultes de seconde generation de P. orni~is augmenle chez les individus enferm6s avec des feuilles terminales de pornmiers garnies de miellat du puceron Aphis pomi DeGeer, mais pay chez les individus enfermCs avec des feuiles terminales sans miellat ou avec des flem de la mauve ntgligke (Malva neglect0 Walk.) ou du mHe des champs (Trifolium pratense L.). La Wsence de miellat augmente @dement la IongtvitC de P. ornigis. II y a des diffewnces significatives entre le nombre total d'oeufs (pondus ou encore dans I'ovaire) produits par la seconde gCn6ration de fernelles, selon la nature de la noumture qu'elles reqoivent. Les fernelles nourries de miellat pondent une plus grande proportion de leurs oeufs que les femelles enfermks avec des feuilles de pommiers sans miellat ou avec des fleurs de M. neglecta ou de T. pratense.Les adultes de P. ornigis nourris d'une solution aqueuse de miel (5050, vlv) vivent plus longtemps et produisent plus d'oeufs que les femelles soumises ? I tout autre kgime alimentaire .[Traduit par...

“…), an important pest of apple in Michigan (Dutcher and Howitt 1978), New York (Weires et al 1980), and Ontario (Pree et al 1980). ), an important pest of apple in Michigan (Dutcher and Howitt 1978), New York (Weires et al 1980), and Ontario (Pree et al 1980).…”

Section: Introductionmentioning

confidence: 99%

Effect of Adhesive on the Spectral Reflectance of Insect Traps

Brach

Trimble

1985

Can. Enr. 117: 1559-1564 (1985) The effect of trap color on sticky-trap catches of Pholetesor ornigis Weed was studied in experimental and commercial apple orchards during each of the parasite's 3 yearly activity periods during 1982-1984. Seven enamel and 5 fluorescent paints were compared in 8 trials. There was considerable between-trial variation in the percentage of the total number of P. ornigis caught on a trap of one color. Trap color had a significant effect on the total number of parasites caught. There were no consistent differences in the relative attractiveness of the different colors to males and females. During 1984, males comprised more than 75% of all parasites trapped during each of the 3 activity periods. The sex ratio of the adult population emerging in study orchards during 2 of these activity periods was approximately 1: 1.