scholarly journals Seasonal Occurrence and Insecticidal Suppression of Eoreuma Loftini (Lepidoptera: Pyralidae) in Sugarcane1

1985 ◽  
Vol 78 (4) ◽  
pp. 960-966 ◽  
Author(s):  
Kathleen J. R. Johnson
Keyword(s):  
Seasonal Occurrence ◽  
Eoreuma Loftini ◽  
Lepidoptera Pyralidae

Mating Potential of Feral and Laboratory-Reared Eoreuma loftini (Lepidoptera: Pyralidae

1994 ◽  
Vol 87 (5) ◽  
pp. 1213-1216 ◽  
Author(s):  
T. N. Shaver ◽  
H. E. Brown ◽  
J. R. Raulston
Keyword(s):  
Eoreuma Loftini ◽  
Lepidoptera Pyralidae

Field Evaluations of Parasitoids of Larval Stalkborers Against Eoreuma loftini (Lepidoptera: Pyralidae) in Rice

1995 ◽  
Vol 30 (3) ◽  
pp. 406-414 ◽  
Author(s):  
R. S. Pfannenstiel ◽  
H. W. Browning
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Eoreuma Loftini ◽  
Allorhogas Pyralophagus ◽  
Lepidoptera Pyralidae ◽  
Mexican Rice Borer

Five species of parasitoids of larval stalkborer were evaluated in Texas in 1987 against the Mexican rice borer, Eoreuma loftini (Dyar), in field enclosures in rice, Oryza sativa L. The braconids, Alabagrus stigma (Brullé) and Allorhogas pyralophagus Marsh, and the bethylid, Goniozus natalensis Gordh, each parasitized >5% of the available E. loftini. The braconids, Apanteles minator Muesebeck and Macrocentrus prolificus Wharton, parasitized <1% of the available hosts. Allorhogas pyralophagus parasitized the highest percentage of borers, including 65.6% of the fifth- and sixth-instar E. loftini. Alabagrus stigma and G. natalensis parasitized fewer borers overall, although parasitism by A. stigma averaged 21.2% of small E. loftini in the rice leafsheaths. Alabagrus stigma, A. pyralophagus, and G. natalensis are candidates for further evaluation in the event that E. loftini becomes a pest of rice in Texas.

A new species of Lydella (Diptera: Tachinidae) from Mexico with a discussion of the definition of the genus

1994 ◽  
Vol 84 (1) ◽  
pp. 131-136 ◽  
Author(s):  
Norman E. Woodley
Keyword(s):  
New Species ◽  
Eoreuma Loftini ◽  
Lepidoptera Pyralidae ◽  
Mexican Rice Borer ◽  
Definition Of ◽  
A New Species

AbstractFollowing the discovery of Lydella jaliscosp. n. (from Jalisco, Mexico), a parasite of the Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Pyralidae), the limits of the genus Lydella Robineau-Desvoidy have been widened to include Diatraeophaga Townsend syn. n., Metoposisyrops Townsend syn. n., and Metagonistylum Townsend syn. n. All species regarded as belonging to Lydella are listed, with L. minense (Townsend) comb. n., L. oryzae (Townsend) comb. n., L. scirpophagae (Chao & Shi) comb. n., L. sesamiae (Mesnil) comb. n., and L. striatalis (Townsend) comb. n.

DIORYCTRIA BANKSIELLA (LEPIDOPTERA: PYRALIDAE) IN THE WESTERN GALL RUST, ENDOCRONARTUM HARKNESSII (BASIDIOMYCETES: UREDINALES)

1972 ◽  
Vol 104 (2) ◽  
pp. 251-255 ◽  
Author(s):  
H. R. Wong
Keyword(s):  
Larval Stage ◽  
Pinus Banksiana ◽  
Morphological Characters ◽  
Jack Pine ◽  
Seasonal Occurrence ◽  
Gall Tissue ◽  
Endocronartium Harknessii ◽  
Lepidoptera Pyralidae

AbstractThe seasonal occurrence and larval habits of Dioryctria banksiella Mutuura, Munroe, and Ross in the western gall rust Endocronartium harknessii (J. P. Moore) Y. Hiratsuka of jack pine, Pinus banksiana Lamb., were studied in Manitoba and Saskatchewan. The early instars score the gall tissue below the bark, and the later instars mine the gall tissue and heartwood. The insect overwinters in the larval stage. The last-instar larvae pupate partly exposed and not entirely within the rust gall from June to July and adults emerge from July to August. The six species of parasites recovered from D. banksiella were Bracon lutus Provancher, Bracon sp., Microchelonus sp., Agathis binominata Muesebeck, Exeristes comstockii (Cresson), and Stiboscopus n. sp. Morphological characters used in separating the last-instar larvae and pupae of D. banksiella from those of other known species of Dioryctria are given.

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