STATUS OF PREDATORS OF THE ADULT APPLE MAGGOT, RHAGOLETIS POMONELLA (DIPTERA: TEPHRITIDAE), IN ONTARIO

1972 ◽  
Vol 104 (2) ◽  
pp. 257-262 ◽  
Author(s):  
L. G. Monteith
Keyword(s):  
Fruit Fly ◽  
Rhagoletis Pomonella ◽  
Apple Trees ◽  
Southern Ontario

AbstractAdult apple maggots, Rhagoletis pomonella (Walsh), were relatively free from attacks by predators in southern Ontario. The main reason for this was the flies’ alert avoidance of approaching objects. In addition to this protection from predators, the flies appeared to be avoided by hunting spiders. Adults of the cherry fruit fly, Rhagoletis cinqulata (Loew), were equally alert and apparently free from predation while they were in apple trees.

THE STATUS OF PARASITES OF THE APPLE MAGGOT, RHAGOLETIS POMONELLA (DIPTERA: TEPHRITIDAE), IN ONTARIO

1971 ◽  
Vol 103 (4) ◽  
pp. 507-512 ◽  
Author(s):  
L. G. Monteith
Keyword(s):  
Lake Ontario ◽  
Rhagoletis Pomonella ◽  
Southern Ontario ◽  
Niagara Escarpment ◽  
The Status

AbstractOpius melleus Gah. and O. lectus Gah. were the only parasites of Rhagoletis pomonella (Walsh) found in southern Ontario during a 4-year survey. The parasites were found only in the Niagara Region on the slope of the Niagara Escarpment and between it and Lake Ontario. The population of parasites was low though they appeared to be well adapted to attack R. pomonella. They were found in, or adjoining, unsprayed sites where there was shrubby growth under the trees infested by R. pomonella.

Intraspecific Competition in the Tephritid Fruit Fly Rhagoletis Pomonella

Ecology ◽  
1987 ◽  
Vol 68 (4) ◽  
pp. 878-886 ◽  
Author(s):  
Anne L. Averill ◽  
Ronald J. Prokopy
Keyword(s):  
Intraspecific Competition ◽  
Fruit Fly ◽  
Rhagoletis Pomonella

Effect of apple-orchard structure on interception of Rhagoletis pomonella (Diptera: Tephritidae) flies by odor-baited traps

2001 ◽  
Vol 133 (3) ◽  
pp. 355-363 ◽  
Author(s):  
Juan Rull ◽  
Ronald J. Prokopy
Keyword(s):  
Behavioral Control ◽  
Apple Orchard ◽  
Mature Male ◽  
Rhagoletis Pomonella ◽  
Low Density ◽  
Medium Density ◽  
Apple Trees ◽  
Control Programs ◽  
Baited Traps ◽  
Large Trees

AbstractWe released marked mature male flies of the apple maggot, Rhagoletis pomonella (Walsh), inside and outside of square blocks of apple trees, Malus domestica Borkh. (Rosaceae), to test the effect of orchard structure on the interception of flies by odor-baited red-sphere traps. The blocks were composed of large trees planted at low density, medium-sized trees planted at medium density, or small trees planted at high density. The experiment was carried out in six commercial apple orchards during summer in 1997 and 1998. Released flies moving into blocks were intercepted in large proportions by baited perimeter traps, thus preventing fly penetration into sphere-protected blocks. In 1997, proportions of intercepted flies were higher for traps in blocks of small and medium-sized trees than for traps in blocks of large trees. In 1998, a year with an unusually low fruit load, interception remained high, but there were no differences in proportions of flies intercepted by perimeter traps among blocks of trees of different sizes. Overall we conclude that the tendency of apple growers in Massachusetts to replace large trees planted at low density with small or medium-sized trees planted at high or medium density will not adversely affect behavioral control programs for apple maggot flies. In fact, this practice may enhance the effectiveness of these programs through increased interception of immigrant adults.

Specificity of olfactory responses in the tephritid fruit fly, Rhagoletis pomonella

1988 ◽  
Vol 47 (3) ◽  
pp. 211-222 ◽  
Author(s):  
Anne L. Averill ◽  
W. Harvey Reissig ◽  
Wendell L. Roelofs
Keyword(s):  
Fruit Fly ◽  
Rhagoletis Pomonella ◽  
Olfactory Responses

scholarly journals CAPTURE OF RELEASED APPLE MAGGOT FLIES, RHAGOLETIS POMONELLA (DIPTERA: TEPHRITIDAE), ON STICKY PANELS

1977 ◽  
Vol 109 (4) ◽  
pp. 631-634 ◽  
Author(s):  
W. H. Reissig
Keyword(s):  
Test Area ◽  
Rhagoletis Pomonella ◽  
Apple Trees ◽  
Release Point

AbstractIn 1975, 19.4% of 6950 marked apple maggot adults, Rhagoletis pomonella, which were released in the center of a 7 × 7 array of unsprayed apple trees were recaptured on Pherocon® AM traps. The distribution of the marked flies was not uniform as most of the flies were recaptured near the release point. The distribution of native flies which migrated into the test area from adjacent infested apple trees was also non-uniform.

scholarly journals Eastern Cherry Fruit Fly, Rhagoletis cingulata (Loew) (Insecta: Diptera: Tephritidae)

EDIS ◽  
1969 ◽  
Vol 2004 (8) ◽  
Author(s):  
Howard V. Weems, Jr.
Keyword(s):  
Sweet Cherry ◽  
Fruit Fly ◽  
Cooperative Extension Service ◽  
Economic Importance ◽  
Eastern North America ◽  
Rhagoletis Pomonella ◽  
Black Cherry ◽  
Pest Species ◽  
Closely Related Species ◽  
University Of Florida

Larvae of two closely related species of fruit flies in central and eastern North America -- Rhagoletis cingulata (Loew), commonly called the cherry fruit fly or cherry maggot, and Rhagoletis fausta (Osten Sacken), the black cherry fruit fly -- attack cherry and cause wormy fruits. Only R. cingulata occurs in Florida, where it attacks wild cherries and is of little economic importance. These two species closely resemble a third pest species, the apple maggot, Rhagoletis pomonella (Walsh); the adults of all three have banded wings. R. cingulata breeds in all varieties of cherries including the sweet cherry. This document is EENY-203 (originally published as DPI Entomology Circular 116), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 2001.  EENY-203/IN360: Cherry Fruit Fly, Rhagoletis cingulata (Loew) (Insecta: Diptera: Tephritidae) (ufl.edu)

ATTRACTION OF RHAGOLETIS FLIES (DIPTERA: TEPHRITIDAE) TO RED SPHERES OF DIFFERENT SIZES

1977 ◽  
Vol 109 (4) ◽  
pp. 593-596 ◽  
Author(s):  
Ronald J. Prokopy
Keyword(s):  
Sour Cherry ◽  
Rhagoletis Pomonella ◽  
Apple Trees

AbstractWhen different size sticky-coated red spheres were positioned within the foliage canopy of sour cherry or apple trees, more Rhagoletis pomonella (Walsh) flies were always captured on 7.5-cm-diam. ones than on 3.4 or 1.5 cm ones. Early in the season, 7.5 cm spheres attracted fewer or about as many R. pomonella as 23 cm spheres, but later on, 7.5 cm spheres always attracted more. R. fausta (Osten Sacken) and R. cingulata (Loew) flies were always more attracted to 7.5 cm spheres than to any other size tested. However, both these species showed a proportionately greater attraction to smaller spheres than did R. pomonella. The phenomena of super-normal stimuli and learning are proposed as possible explanations of certain of these findings.

A LOW-SPRAY APPLE-PEST-MANAGEMENT PROGRAM FOR SMALL ORCHARDS

1985 ◽  
Vol 117 (5) ◽  
pp. 581-585 ◽  
Author(s):  
Ronald J. Prokopy
Keyword(s):  
Pest Management ◽  
Management Program ◽  
Rhagoletis Pomonella ◽  
Apple Trees ◽  
Early Season ◽  
Disease Resistant ◽  
Petroleum Oil

AbstractFrom 1981 to 1984, a low-spray management program was employed against injurious arthropods on the 40 disease-resistant apple trees in my experimental orchard in Massachusetts. The program consisted of an annual early-season application of petroleum oil followed by 2 applications of phosmet (1 at petal fall and another 10–14 days later). Visual traps were used to suppress Rhagoletis pomonella flies. For all years combined, a mean of 89.7% of fruit sampled at harvest in this orchard was free of insect injury compared with 0% uninjured fruit on neighboring unsprayed trees. Populations of foliar-feeding pests never reached injurious levels.

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