Sugar beet root maggot (Tetanops myopaeformis) genes modulated by resistant and susceptible interactions with Beta vulgaris

2011 ◽  
Author(s):  
Haiyan Li ◽  
Senthilkumar Padmanaban ◽  
Ann C. Smigocki
Keyword(s):  
Sugar Beet ◽  
Beta Vulgaris ◽  
Beet Root ◽  
Tetanops Myopaeformis ◽  
Sugar Beet Root ◽  
Root Maggot

scholarly journals Bacterial Symbionts in the Sugar Beet Root Maggot, Tetanops myopaeformis (von Röder) †

1984 ◽  
Vol 47 (1) ◽  
pp. 22-27 ◽  
Author(s):  
Kathy L. Iverson ◽  
Mary C. Bromel ◽  
Albin W. Anderson ◽  
Thomas P. Freeman
Keyword(s):  
Sugar Beet ◽  
Bacterial Symbionts ◽  
Beet Root ◽  
Tetanops Myopaeformis ◽  
Sugar Beet Root ◽  
Root Maggot

Life History of the Sugar-Beet Root Maggot Tetanops myopaeformis (Röder) (Diptera: Otitidae) in Southern Alberta

1962 ◽  
Vol 94 (12) ◽  
pp. 1334-1340 ◽  
Author(s):  
A. M. Harper
Keyword(s):  
Life History ◽  
Sugar Beet ◽  
Sandy Soil ◽  
Sugar Beets ◽  
Beet Root ◽  
Southern Alberta ◽  
Tetanops Myopaeformis ◽  
History Of ◽  
Sugar Beet Root ◽  
Root Maggot

Sugar beets are grown on approximately 38,000 acres of irrigated land in southern Alberta and their culture is a stabilizing influence on the economy of the irrigated districts. The sugar-beet root maggot, Tetanops myopaeformis (Röder), has been a pest of sugar heets in the sandy soil areas of southern Alberta since 1955 and caused serious damage in the same area from 1934 to 1937. This insect has been a problem also in Manitoba, North Dakota, Idaho, Montana, Wyoming, Utah, and Colorado (Allen et al., 1959; Callenbach et al., 1957; Hawley, 1922; Jones et al., 1952; Maxson, 1948). Considerable experimental work has been done on the control of this pest in Alberta (Harper et al., 1961a; Harper et al., 1961b; Lilly et al., 1961), but there have been no detailed studies published on the life history of the insect in Canada and there is very little information from elsewhere. In 1922 Hawley published notes on the biology of the insect in Utah. The present paper describes the life history of T. myopaeformis in southern Alberta.

An in vitro sugar beet root maggot (Tetanops myopaeformis) feeding assay

2005 ◽  
Author(s):  
Snezana D. Ivic-Haymes ◽  
Mark Boetel ◽  
Larry G. Campbell ◽  
Robert Dregsetb ◽  
Ann C. Smigocki
Keyword(s):  
Sugar Beet ◽  
Feeding Assay ◽  
Beet Root ◽  
Tetanops Myopaeformis ◽  
Sugar Beet Root ◽  
Root Maggot

Reliability of Trapping in Determining the Emergence Period and Sex Ratio of the Sugar-beet Root Maggot Tetanops myopaeformis (Röder) (Diptera: Otitidae)

1962 ◽  
Vol 94 (3) ◽  
pp. 268-271 ◽  
Author(s):  
A. M. Harper ◽  
T. P. Story
Keyword(s):  
Sex Ratio ◽  
Sugar Beet ◽  
Emergence Period ◽  
Beet Root ◽  
Water Traps ◽  
Southern Alberta ◽  
Tetanops Myopaeformis ◽  
Field Information ◽  
Sugar Beet Root ◽  
Root Maggot

The sugar-beet root magsot, Tetanops myopaeformis (Röder), is one of the most important pests of sugar-beets in southern Alberta. From 1956 to 1960 studies were made of various phases of its life history (unpublished). In this paper, napping adults of T. myopaeformis by insecticide and water traps is judged for reliahility in determining dates of emergence and sex ratio when compared with data obtained from emergence cages in the field. Information is also given on the influence of color and a wetting agent on the number of flies caught in water traps.

Performance of sugar beet hybrids with sugar beet root maggot-resistant pollinators

2008 ◽  
Vol 127 (1) ◽  
pp. 43-48 ◽  
Author(s):  
L. G. Campbell ◽  
J. Miller ◽  
M. Rekoske ◽  
L. J. Smith
Keyword(s):  
Sugar Beet ◽  
Beet Root ◽  
Sugar Beet Root ◽  
Root Maggot

scholarly journals First report of Pythium ultimum causing damping-off of Sugar beet (Beta vulgaris. L) in Montana, USA

Plant Disease ◽  
2020 ◽  
Author(s):  
Mohamed Fizal Khan ◽  
Md. Ehsanul Haque ◽  
Peter Hakk ◽  
Md. Ziaur Rahman Bhuyian ◽  
Yangxi Liu ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Beta Vulgaris ◽  
Pythium Ultimum ◽  
Pathogenicity Test ◽  
Damping Off ◽  
First Report ◽  
Beet Root ◽  
Pcr Products ◽  
Seed Rot ◽  
Sugar Beet Root

Sugar beet (Beta vulgaris L.) is a globally important crop for sugar. In May 2019, sugar beet seedlings were observed with wilting, lodging and a few were dead in Glendive (46.970170, -104.838204), Montana. Symptoms appeared near the soil line as the stem (hypocotyl) turned dark brown to black with characteristic thread-like infections which resembled Pythium damping-off. It affected approximately 10% of the growing seedlings. Diseased sugar beet root tissues were excised with a sterile scalpel and small pieces (10 mm²) were surface sterilized with 70 % ethanol for 30 seconds, rinsed twice with autoclaved water, air-dried and transferred to potato dextrose agar (PDA) media amended with pimaricin-vancomycin-PCNB (Conway, 1985). Four plates were incubated at 25° C in the dark (Masago et al., 1977) and two weeks later white, dense colony was observed (Zhang et al., 2018). The terminal smooth, globose oogonia (average 18.5 µm in diameter) and antheridia (average 14.5 × 9.5 µm) extended below the oogonium were observed via VWR N. A. 0.30 microscope. The morphological features of the four isolates were consistent with Pythium ultimum Trow (Watanabe, 2002). Genomic DNAs (NORGEN BIOTEK CORP, Fungi DNA Isolation Kit #26200) of four isolates were used for polymerase chain reaction (PCR) with the ITS6-ITS7 primers (Taheri et al., 2017). Subsequently, PCR products were flushed by E.Z.N.A ®Cycle Pure Kit, OMEGA and four samples were sent for Sanger sequencing to GenScript (GenScript, Piscataway, NJ). The sequences were identical and submitted to GenBank, NCBI (accession no. MN398593). The NCBI Blast analysis showed 100% sequence homology to Pythium ultimum with the following GenBank accessions; KF181451.1, KF181449.1 and AY598657.2. Pathogenicity test was done on sugar beet with the same isolates in the greenhouse. Two week old, pythium culture was mixed with vermiculite and perlite mixer (PRO-MIX FLX) in the plastic trays (24´´ x 15´´× 3˝), (22 °C, 75% Relaive Humidity). Sterile water (500 ml/each tray) was added in the mixer to provide sufficient moisture. Twenty seeds of cv. Hilleshog 4302 were sown in the tray, and the trays were replicated thrice with inoculated and mock treatments. Plants were watered as needed to maintain adequate soil moisture conducive for plant growth and disease development. Seven days after sowing, 50% and 100% germination was observed in the inoculated and control treatments, respectively. At the beginning of the second week, 30% post-emergence damping-off was observed in the inoculated treatments. Diseased seedlings were gently pulled out from the pots where similar symptoms were observed in the sugar beet seedlings as described previously. No incidence of disease was observed in mock-treated seedlings. Consistent reisolation of Pythium ultimum was morphologically and molecularly confirmed from the diseased seedlings, thus fulfilling Koch’s postulates. Pythium spp identification is prerequisite to develop effective management of pre and post-emergence damping-off. Pythium ultimum was previously reported in Nebraska to cause sugar beet seed rot and pre-emergence damping-off (Harvenson 2006). To our knowledge, this is the first report of Pythium ultimum causing damping-off on sugar beet in the Sidney factory district in Montana.

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