Turnip Root Maggot, Delia floralis (Fallen) (Diptera: Anthomyiidae)

2012 ◽  
Keyword(s):  
Root Maggot ◽  
Delia Floralis

Turnip Root Maggot, Delia floralis (Fallen) (Diptera: Anthomyiidae)

2008 ◽  
pp. 3994-3995
Author(s):  
James E. O’Hara ◽  
Igor UsUpensky ◽  
N. J. Bostanian ◽  
John L. Capinera ◽  
Reg Chapman ◽  
...  
Keyword(s):  
Root Maggot ◽  
Delia Floralis

THE EFFECT OF TILLAGE REGIME ON EMERGENCE OF ROOT MAGGOTS (DELIA SPP.) (DIPTERA: ANTHOMYIIDAE) FROM CANOLA

1996 ◽  
Vol 128 (6) ◽  
pp. 1157-1165 ◽  
Author(s):  
L.M. Dosdall ◽  
M.J. Herbut ◽  
N.T. Cowle ◽  
T.M. Micklich
Keyword(s):  
Brassica Napus ◽  
Delia Radicum ◽  
No Tillage ◽  
Population Densities ◽  
Emergence Success ◽  
Tillage Treatment ◽  
Root Maggot ◽  
Spring Emergence ◽  
Delia Floralis ◽  
Experimental Plots

AbstractThe effect of four tillage regimes on the emergence of root maggots (Delia spp.) (Diptera: Anthomyiidae) was determined on experimental plots seeded the previous year to either Brassica rupa L. or Brassica napus L. The tillage regimes evaluated comprised no tillage, tillage in the spring only, tillage in the fall only, and tillage in both the fall and the spring. Emergence trap collections of Delia radicum (L.) and Delia floralis (Fallén) were made from the experimental plots from early May to mid-July of 1991 and 1992. In both years, emergence from untilled plots significantly exceeded that from plots subjected to any other tillage treatment. Tillage resulted in a decrease in emergence of 55–64% for D. radicum, and reduction of 53–72% for D. floralis. For D. floralis, greatest reductions in emergence following a tillage treatment occurred in plots tilled only in the fall or in plots tilled in both the fall and the spring; however for D. radicum, tillage in the fall, the spring, and in both the fall and the spring reduced emergence to approximately the same extent. Results of our study indicated that canola growers in regions of high population densities of root maggot should cultivate infested fields, preferably in fall, to reduce the emergence success of Delia spp.

Two Phycomycetes 1 Infecting Root Maggot Adults in Wisconsin 2

1974 ◽  
Vol 3 (6) ◽  
pp. 1030-1031 ◽  
Author(s):  
B. A. Matanmi ◽  
J. L. Libby ◽  
D. P. Maxwell
Keyword(s):  
Root Maggot

scholarly journals Fall and spring seeding date effects on herbicide-tolerant canola (Brassica napus L.) cultivars

2004 ◽  
Vol 84 (2) ◽  
pp. 419-430 ◽  
Author(s):  
G. W. Clayton ◽  
K. N. Harker ◽  
J. T. O’Donovan ◽  
R. E. Blackshaw ◽  
L. M. Dosdall ◽  
...  
Keyword(s):  
Field Experiments ◽  
Plant Density ◽  
Early Spring ◽  
Yield Response ◽  
Management Options ◽  
Brassica Napus L ◽  
Seeding Date ◽  
Herbicide Tolerant ◽  
Root Maggot ◽  
Crops Yield

More flexible and effective weed control with herbicide-tolerant B. napus canola allows for additional seeding management options, such as fall (dormant) and early spring (ES) seeding. Field experiments were conducted at Lacombe and Beaverlodge (1999–2001), Didsbury (1999–2000), and Lethbridge (2000–2001), Alberta, Canada, primarily to evaluate the effect of fall (late October-November), ES (late April-early May), and normal spring (NS) (ca. mid-May) seeding dates on glufosinate-, glyphosate-, and imidazolinone-tolerant canola development and yield. Fall seeding resulted in 46% lower plant density and nearly double the dockage than spring seeding. ES-seeded canola had 19% higher seed yield and 2.1% higher oil content than fall-seeded canola. ES seeding significantly increased yield compared to fall-seeded canola for 8 of 10 site -years or compared to NS seeding for 4 of 10 site-years; ES-seeded canola equalled the yield of NS-seeded canola for 6 of 10 site-years. Yield response to seeding date did not differ among herbicide-tolerant cultivars. Seeding date did not influence root maggot damage. Seeding canola as soon as possible in spring increases the likelihood of optimizing canola yield and quality compared to fall seeding and traditional spring seeding dates. Key words: Dormant seeding, seeding management, root maggot, herbicide-resistant crops, yield components, operational diversity

Delia floralis. [Distribution map].

1989 ◽  
Author(s):  
Keyword(s):  
United Kingdom ◽  
North America ◽  
Geographical Distribution ◽  
Chinese Cabbage ◽  
Leningrad Region ◽  
Distribution Map ◽  
Kamchatka Region ◽  
Delia Floralis ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Delia floralis (Fallén) Diptera: Anthomyiidae Turnip root fly, summer cabbage fly. Attacks Brassica spp., swede, cabbage, cauliflower, calabrese, Chinese cabbage, turnip, radish, wallflower, rapeseed (canola) Information is given on the geographical distribution in EUROPE, Denmark, Finland, Germany, West Hungary, Italy, Norway, Sweden, Switzerland, United Kingdom, USSR, Byelorussian SSR, Estonian SSR, Kazakh SSR, Latvian SSR, Moldavian SSR, Russian, SFSR, Kamchatka region, Leningrad region, Pushkin area, Ukraine, Uzbekistan, ASIA, China, Japan, Mongolia, NORTH AMERICA, Canada, Alberta, Manitoba, Newfoundland, Saskatchewan, USA, Alaska.

Do applications of sulfur or sulfate influence infestations of root maggots (Delia spp.) (Diptera: Anthomyiidae) in canola?

2002 ◽  
Vol 82 (3) ◽  
pp. 599-610 ◽  
Author(s):  
L. M. Dosdall ◽  
R. -C. Yang ◽  
P. M. Conway
Keyword(s):  
Brassica Rapa ◽  
Field Experiments ◽  
Elemental Sulfur ◽  
Insect Pest ◽  
Soil Surface ◽  
Application Rate ◽  
Delia Radicum ◽  
Application Methods ◽  
Root Maggot ◽  
Sulfur Nutrition

While the importance of sulfur nutrition for the development of healthy stands of canola is well documented, the role of sulfur in the management of insect pest infestations has not previously been investigated in this crop. Field experiments were conducted at three sites in central Alberta in 1997 and 1998 to determine the influence of sulfur and sulfate applications on infestations of root maggots (Delia spp.) (Diptera: Anthomyiidae) in canola (Brassica rapa L.). Different formulations (granules, powder, prills, and sprays), application methods (either drilled in with the seed or top-dressed on the soil surface), and application rates were evaluated. To assess the degree of root maggot infestation, oviposition throughout the season and damage to taproots at the end of the season were monitored. Sulfur contents were analyzed from leaf samples collected mid-season and seed yields were measured from all treatment plots. Root maggot responses to the different sulfur treatments and application methods varied among years and sites, indicating that environmental factors have great importance in determining infestation levels by these pests, and the oxidation rate of elemental sulfur in soil. Sulfur formulation and application rate had significant effects on root maggot egg deposition and root damage for some sites and years, but even at high rates of application (112 kg ha-1) reductions in infestation levels were not substantial relative to the controls. While sulfur additions alone will not greatly reduce root maggot infestation levels in canola, growers should employ adequate sulfur nutrition for optimum crop health to enable plants to better compensate for damage by these pests. Key words: Brassica rapa, Delia radicum, Delia floralis, elemental sulfur, sulfate, canola

scholarly journals Breeding for Resistance to the Sugarbeet Root Maggot 1

Crop Science ◽  
1982 ◽  
Vol 22 (3) ◽  
pp. 641-645 ◽  
Author(s):  
J. C. Thuerer ◽  
C. C. Blickenstaff ◽  
G. G. Mahrt ◽  
Devon L. Doney
Keyword(s):  
Breeding For Resistance ◽  
Sugarbeet Root Maggot ◽  
Root Maggot

scholarly journals Insecticides for Control of Cabbage Root Maggot in Spring Cabbage, 2014: Table 1

2015 ◽  
Vol 40 (1) ◽  
pp. E44
Author(s):  
Susan B. Scheufele ◽  
Lisa McKeag ◽  
Katie Campbell-Nelson ◽  
Ruth Hazzard
Keyword(s):  
Cabbage Root Maggot ◽  
Root Maggot

CONTROL OF ROOT MAGGOTS ATTACKING CRUCIFEROUS CROPS, MAINLY RUTABAGAS, GROWN IN RIDGES

1960 ◽  
Vol 40 (4) ◽  
pp. 721-728
Author(s):  
D. C. Read
Keyword(s):  
Prince Edward Island ◽  
First Generation ◽  
Chlorinated Hydrocarbons ◽  
Growing Season ◽  
The Other ◽  
Effective Control ◽  
Complete Control ◽  
Root Maggot

Experiments in 1958 and 1959 with pre-planting soil treatments of insecticides, applied in a 5-inch band [Formula: see text] below the seed in ridges of soil, snowed that heptachlor, aldrin and chlordane, each at 5 pounds toxicant per acre, gave 70 to 90 per cent reduction in root maggot damage in cruciferous crops in Prince Edward Island. Each of these insecticides gave better control of the second than of the first generation of root maggots. Nematocide 18,133, at 5 and at 10 pounds per acre gave complete control throughout the growing season and also gave the highest yield. Thimet at 5 and at 10 pounds gave better control than the chlorinated hydrocarbons; parathion and Guthion, at the same rates, gave better control of the first generation but not as effective control thereafter. Korlan at 6 pounds gave fair control of the first generation but was ineffective thereafter. Ethion, Trithion, Di-syston and Diazinon, each at 5 and at 10 pounds, and Co-Ral and Dylox at 5 pounds were ineffective in controlling root maggot injury. Diazinon was highly phytotoxic; none of the other insecticides showed any phytotoxicity.

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