scholarly journals Inter- and Intrafield Distribution of Cereal Leaf Beetle Species (Coleoptera: Chrysomelidae) in Belgian Winter Wheat

2019 ◽  
Vol 48 (2) ◽  
pp. 276-283 ◽  
Author(s):  
Elias Van de Vijver ◽  
Sofie Landschoot ◽  
Martijn Van Roie ◽  
Femke Temmerman ◽  
Jill Dillen ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Leaf Beetle ◽  
Beetle Species ◽  
Cereal Leaf Beetle

Damage Loss Assessment and Control of the Cereal Leaf Beetle (Coleoptera: Chrysomelidae) in Winter Wheat

2004 ◽  
Vol 97 (2) ◽  
pp. 374-382 ◽  
Author(s):  
G. David Buntin ◽  
Kathy L. Flanders ◽  
Robert W. Slaughter ◽  
Zandra D. Delamar
Keyword(s):  
Winter Wheat ◽  
Leaf Beetle ◽  
Loss Assessment ◽  
Cereal Leaf Beetle ◽  
And Control

Effect of Cereal Leaf Beetle on the Yields of Resistant and Susceptible Winter Wheat 1

Crop Science ◽  
1982 ◽  
Vol 22 (4) ◽  
pp. 836-840 ◽  
Author(s):  
J. A. Webster ◽  
D. H. Smith ◽  
R. P. Hoxie
Keyword(s):  
Winter Wheat ◽  
Leaf Beetle ◽  
Cereal Leaf Beetle

scholarly journals Anatomical features of leaves of three cultivars of winter wheat (Triticum aestivum L.) and settling the plants by cereal leaf beetles, Oulema spp. (Coleoptera, Chrysomelidae)

2013 ◽  
Vol 47 (2) ◽  
pp. 53-62 ◽  
Author(s):  
Elżbieta Weryszko-Chmielewska ◽  
Grzegorz Soczyński
Keyword(s):  
Winter Wheat ◽  
Cell Walls ◽  
Triticum Aestivum L ◽  
Leaf Beetle ◽  
Leaf Beetles ◽  
Anatomical Features ◽  
Cereal Leaf Beetle ◽  
Adaxial Epidermis ◽  
Winter Wheat Cultivars ◽  
Made In

Investigations of flag leaves anatomy of three winter wheat cultivars: Almari, Gama and Weneda were carried out as it was state that there are great differences in the intensity of cereal leaf beetle feeding on the leaves. In order to determine the features conditioning the differentiated resistance of these cultivars following parameters were measured: the thickness of leaf blade, the length of trichomes and their density in the adaxial epidermis, the number of silicon cells in 1 mm<sup>2</sup> epidermis and the thickness of the external cell walls of epidermis. The observations of cross section of the leaves were made in a light microscope and that of surface of the adaxial epidermis in a scanning electron microscope. In this study it was shown that Gama cv. distinguishes of the shortest trichomes with poor density, the lowest number of the silicon cells in 1 mm<sup>2</sup> and epidermis cells with the thinest walls. This features indicate a poor resistance of Gama cv. against feeding of the pests and give reasons for the presence a much higher number of the cereal leaf beetle larvae (about 100%) than at the extant two cultivars. Dependence between the thickness of leaf blades and the number of larvae of the infesting pests has not been stated.

scholarly journals Assessment of Agrocenosis Adaptability of Winter Wheat in the Conditions of the Foothill Zone of the Central Caucasus

2021 ◽  
Author(s):  
Irina Manukyan ◽  
Elena Miroshnikova ◽  
Madina Basieva ◽  
Nino Doguzova
Keyword(s):  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Leaf Beetle ◽  
Tan Spot ◽  
Head Blight ◽  
Wheat Varieties ◽  
Cereal Leaf Beetle ◽  
Oulema Melanopus ◽  
Central Caucasus ◽  
Selection Of

This paper presents the results of multi-year research on the adaptability of winter wheat varieties to the conditions of the foothill zone of the Central Caucasus. Characteristics such as ductility and stability were used to assess varieties for conformity to the cultivation conditions. Plant homeostaticity served as the indicator of ontogenetic adaptability. Phenological observations and reports were carried out according to the state variety testing methodology. The species composition of weed vegetation was established using the Agroecological Atlas of Russia. Conventional insect accounting methods were used to consider phytophages and plants damaged by them. It was established that the dominant pests of winter grains in the early periods of vegetation include phytophage bugs and cereal leaf beetle Oulema melanopus L. The maximum number of phytophage bugs was noted during the earing-flowering period. The proportion of pathogens of spike Fusarium head blight, tan spot and Septoria spot prevailed in the pathogenic complex. In total, 36.7% of varieties, including Kuma, Deya, Esaul, Starshina, Delta, Nota and Antonina, were medium-resistant to Fusarium head blight damage. According to the results of a comprehensive assessment of winter wheat selection by the parameters of adaptability, productivity and resistance to diseases, highly plastic genotypes responsive to environmental factors were distinguished: Kuma, Deya, Veda, Tanya, and List 25 (bi = 2.2; 2,3; 2,1). The selection of varieties was based on the adaptive properties of winter wheat. Fusarium head blight decreased by 20.8% in the mixed variety Batko+Deya, and the yield of mixed variety crops increased by 9%. Methods for compiling mixed varieties and designing the mosaics of varieties in the area of grain agrocenosis are recommended. Keywords: winter wheat, sustainability of agrocenosis, productivity, ecological plasticity, mixed varieties

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