Furia virescens (Thaxter) Humber (Zygomycetes: Entomophthoraceae) Infections in the Armyworm, Pseudaletia unipuncta (Haworth) (Lepidoptera: Noctuidae) in Arkansas with Notes on Other Natural Enemies

1993 ◽  
Vol 28 (4) ◽  
pp. 376-386 ◽  
Author(s):  
D. C. Steinkraus ◽  
A. J. Mueller ◽  
R. A. Humber

An epizootic caused by Furia virescens (Thaxter) Humber (Zygomycetes: Entomophthorales) was studied in a population of armyworms, Pseudaletia unipuncta (Haworth), in a tall fescue, Festuca arundinacea Schreber (Poaceae), pasture in Arkansas. Prevalence rates in live larvae collected from the field were 21.6, 8.1 and 13.5% for F. virescens, the braconid parasitoid Glyptapanteles militaris (Walsh), and an unidentified mermithid nematode, respectively. In a laboratory trial one Heliothis virescens (F.) larva was infected by F. virescens. Previously unrecorded aspects of the morphology and life cycle of F. virescens are described. Pseudaletia unipuncta and H. virescens are new host records for F. virescens.

1993 ◽  
Vol 28 (4) ◽  
pp. 462-467 ◽  
Author(s):  
Herbert Eichenseer ◽  
Douglas L. Dahlman

True armyworms, Pseudaletia unipuncta (Haworth), were fed tall fescue leaves either infected or uninfected with the symbiotic fungus, Acremonium coenophialum Morgan-Jones and Gams. Young larvae fed endophyte-infected leaves weighed less than cohorts fed endophyte-free leaves, but developmental and survival rates were unaffected by endophyte infection. Older instar larvae fed endophyte-infected leaves weighed the same as those larvae fed endophyte-free leaves. Pupal weights also were unaffected by endophyte infection. These results were similar to recent studies conducted with other armyworm species and suggest that endophyte infection in tall fescue does not enhance resistance to a number of lepidopteran larvae.


Nematology ◽  
2001 ◽  
Vol 3 (6) ◽  
pp. 483-490 ◽  
Author(s):  
Nigel Bell ◽  
Richard Watson

AbstractAdult and juvenile characters were used to identify Paratylenchus nanus Cobb, 1923 and Paratrichodorus minor (Colbran, 1956) Siddiqi, 1974 from soils under pasture in New Zealand. In glasshouse tests of 15 pasture plants, common in New Zealand, all good hosts (ratio of final to initial population >1) of P. nanus were grasses, namely Dactylis glomerata , Lolium multiflorum and L. perenne (Neotyphodium endophyte-infected and-free), all new host records for this species. Good hosts of P.minor included those listed for P.nanus and Festuca arundinacea (endophyte-free) , Poa annua , Trifolium pratense , T. repens and T. subterraneum. Except for T. repens, these are all new host records for P.minor in New Zealand.


Author(s):  
J. Monk ◽  
E. Gerard ◽  
S. Young ◽  
K. Widdup ◽  
M. O'Callaghan

Tall fescue (Festuca arundinacea) is a useful alternative to ryegrass in New Zealand pasture but it is slow to establish. Naturally occurring beneficial bacteria in the rhizosphere can improve plant growth and health through a variety of direct and indirect mechanisms. Keywords: rhizosphere, endorhiza, auxin, siderophore, P-solubilisation


Author(s):  
B.R. Watkin

AN Aberystwyth selection of tall fescue (Festuca arundinacea Schreb.), known as S170, was sown with certified New Zealand white clover (Trifolium repens) and re' clover (T. pratense) and compared under sheep grazing with other grass/clover pastures at the Grasslands Division Regional Station at Lincoln (Watkin, 1975) .


Chemosphere ◽  
2021 ◽  
Vol 276 ◽  
pp. 130186
Author(s):  
ShaoFan Zuo ◽  
Shuai Hu ◽  
JinLiang Rao ◽  
Qin Dong ◽  
ZhaoLong Wang

Zootaxa ◽  
2012 ◽  
Vol 3227 (1) ◽  
pp. 54 ◽  
Author(s):  
ANKITA GUPTA ◽  
BLAISE PEREIRA

A new species, Glyptapanteles hypermnestrae Gupta and Pereira, is described from Maharashtra, India, and comparedwith closely allied species. This new species was bred from parasitized larvae of Elymnias hypermnestra (Linnaeus) (Lep-idoptera: Nymphalidae). In addition to this, two hymenopteran parasitoids, Apanteles folia Nixon (Braconidae: Microgas-trinae) and Brachymeria indica (Krausse) (Chalcididae), are for first time reported parasitizing larvae of Arhopalaamantes (Hewitson) (Lepidoptera: Lycaenidae) and pupae of Pareronia valeria (Cramer) (Lepidoptera: Pieridae) respectively.


Mycoses ◽  
2009 ◽  
Vol 25 (11) ◽  
pp. 638-640 ◽  
Author(s):  
S. C. Sati ◽  
G. S. Mer ◽  
R D. Khulbe

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