southern corn rootworm
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2020 ◽  
Vol 9 (26) ◽  
Author(s):  
Sijun Liu ◽  
Arnubio Valencia-Jiménez ◽  
Molly Darlington ◽  
Ana M. Vélez ◽  
Bryony C. Bonning

ABSTRACT The genome of Diabrotica undecimpunctata virus 2 (DuV2), a putative positive-sense, single-stranded RNA virus identified from the southern corn rootworm transcriptome, comprises 5,313 nucleotides, including a short poly(A) tail. The two open reading frames encode a nonstructural polyprotein (p156) and a putative capsid protein (p25).


2020 ◽  
Vol 9 (26) ◽  
Author(s):  
Sijun Liu ◽  
Arnubio Valencia-Jiménez ◽  
Molly Darlington ◽  
Ana M. Vélez ◽  
Bryony C. Bonning

ABSTRACT The genome sequence of a novel small RNA virus, tentatively named Diabrotica undecimpunctata virus 1 (DuV1), was discovered from the transcriptome of the southern corn rootworm, Diabrotica undecimpunctata howardi Barber. DuV1 has a positive-sense, single-stranded RNA genome that encodes a single polyprotein of 3,401 amino acids with limited similarity to other viruses.


cftm ◽  
2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Brian Royals ◽  
Rick Brandenburg ◽  
Andrew Hare ◽  
David Jordan ◽  
Sally Taylor ◽  
...  

2016 ◽  
Vol 43 (1) ◽  
pp. 59-66 ◽  
Author(s):  
B.R. Lassiter ◽  
D.L. Jordan ◽  
G.G. Wilkerson ◽  
B.B. Shew ◽  
R.L. Brandenburg

ABSTRACT Twelve field trials were completed in North Carolina from 2005 to 2007 to determine the impact of planting pattern on peanut yield, market grade characteristics, and pest reaction for the Virginia market type cultivars Perry and VA 98R. The first set of experiments was designed to evaluate incidence of Cylindrocladium black rot (caused by Cylindrocladium parasiticum) using a factorial treatment arrangement of two cultivars, two levels of fumigation (none or metam sodium at 112 L/ha), and two levels of planting pattern (single rows spaced 91-cm apart or twin rows spaced 18 cm apart on 91-cm centers). Visible symptoms associated with Cylindrocladium black rot were not affected by planting pattern. However, in 1 of 3 trials pod scarring as a result of feeding by southern corn rootworm (Diabrotica undecimpunctata Howardi) was greater in twin rows compared with single rows. Damage from tobacco thrips (Frankliniella fusca) was also higher in the cultivar VA 98R planted in twin rows than in single rows or for the cultivar Perry. In the second set of experiments designed to evaluate incidence of Sclerotinia blight (caused by Sclerotinia minor), a factorial treatment arrangement consisting of two cultivars, two levels of boscalid (none or boscalid at 0.44 kg ai/ha), and two levels of planting pattern was implemented. Boscalid decreased Sclerotinia blight incidence at one of 4 locations, and increased pod yield. Yield of Perry was lower when grown in twin rows versus single rows, but yield of VA 98R was higher in twin rows. Peanut planted in twin rows yielded more than peanut planted in single rows regardless of cultivar, fumigation, or disease history in most trials. Results from these experiments suggest that planting pattern can have a minor impact on response to pests and that yield and market grades are often improved when peanut is planted in twin-row planting patterns compared with single rows.


2016 ◽  
Vol 2016 ◽  
pp. 1-9
Author(s):  
Bridget R. Lassiter ◽  
David L. Jordan ◽  
Gail G. Wilkerson ◽  
Barbara B. Shew ◽  
Rick L. Brandenburg

Virginia market type peanut (Arachis hypogaeaL.) cultivars are grown primarily in North Carolina, South Carolina, and Virginia in the US, although growers in these states often plant other market types if marketing opportunities are available. Information on yield potential and management strategies comparing these market types is limited in North Carolina. In separate experiments, research was conducted to determine response of runner, Spanish, and Virginia market types to calcium sulfate and inoculation withBradyrhizobiumat planting, planting and digging dates, planting patterns, and seeding rates. In other experiments, control of thrips (Frankliniellaspp.) using aldicarb, southern corn rootworm (Diabrotica undecimpunctataHowardi) using chlorpyrifos, eclipta (Eclipta prostrataL.) using threshold-based postemergence herbicides, and leaf spot disease (caused by the fungiCercospora arachidicolaandCercosporidium personatum) fungicide programs was compared in these market types. Results showed that management practice and market types interacted for peanut pod yield in only the planting date experiment. Yield of runner and Virginia market types was similar and exceeded yield of the Spanish market type in most experiments.


2016 ◽  
Vol 05 (04) ◽  
pp. 223-230
Author(s):  
Thangaiah Subramanian ◽  
Meiling Webb ◽  
Ganga Bhagavathy ◽  
Annett Rozek ◽  
Bheema Rao Paraselli ◽  
...  

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