scholarly journals Видовий склад шкідливої ентомофауни агробіоценозу пшениці озимої в Правобережному Лісостепу України

Author(s):  
О. О. Стригун ◽  
Ю. М. Судденко

Уточнено видовий склад комах-фітофагів агробіоценозу пшениці озимої в Правобережному Лісостепу України. За результатами моніторингу ентомокомплексу пшениці виявлено 55 видів шкідливих комах з 19 родин, які в тій чи іншій мірі можуть пошкоджувати цю культуру. Ряд жуки, або твердокрилі (Cоleoptera), характеризувався найбільшим видовим різноманіттям. За результатами проведених досліджень з’ясовано, що основними і найбільш небезпечними фітофагами, які завдають значної шкоди в Правобережному Лісостепу є комплекс комах-шкідників колосся: злакові попелиці, хлібні клопи, хлібні жуки, пшеничний трипс, хлібний турун. We clarified the species composition of insects-phytophagous of winter wheat agrobiocenosis in the Right-Bank of Forest-Steppe of Ukraine. According to the results of monitoring of wheat entomocomplex we found 55 species of harmful insects from 19 families that in one way or another can damage the crop. The order Coleoptera was characterized by the highest species diversity. The results of the study found that the main and most dangerous pests that cause significant damage in the Right-Bank of Forest-Steppe is a complex of pests ears: aphids, wheat bugs, wheat chafers, thrips, cereal ground beetle.

2020 ◽  
Vol 107 (3) ◽  
pp. 96-104
Author(s):  
V. Medvid ◽  

Entomofauna of winter wheat in the Right-bank Forest-Steppe of Ukraine The entomofauna of winter wheat in the Right-Bank Forest-Steppe of Ukraine during the spring-summer vegetation of 2017–2019, which consisted of 46 species from 8 orders of insects, was studied. 32 species from 17 families were identified among the phytophages winter wheat. The greatest diversity of the Coleoptera was shown. The species composition of the entomocomplex of each year is analyzed, the frequency of occurrence of species is determined. It was found that during three years of research in the agrocenosis of wheat most often there were only three species: Haplothrips tritici Kurd., Sitobion avenae F. and Eurygaster integriceps Put. Keywords: entomofauna, species composition, winter wheat, phytophages, entomophages.


1970 ◽  
pp. 93-101
Author(s):  
V.A. Mazur ◽  
H.V. Pantsyreva ◽  
Y.M. Kopytchuk

Purpose. Study of the anatomical and morphological structure of the stem of winter wheat hybrids depending on fertilization backgrounds and seeding rates in agrocenoses of the Right-Bank Forest-Steppe natural zone of Ukraine. Methods. Observation, comparison, analysis and synthesis, forecast, field experiment. Results. The study of the dynamics of formation and functioning of the anatomical and morphological structure of the stem of winter wheat plants was carried out. The influence of the background without fertilizers and against the background of their increased level of application on the length of internodes (1-3) of stems in winter wheat agrocenoses was studied. It has been proven that seeding rates significantly influenced the length of the internodes. The influence of the background of mineral nutrition and seeding rates on the main anatomical and morphological parameters of winter wheat stems, in particular, the thickness of the stem and ring of mechanical tissue, the number and diameter of vascular-fibrous bundles was studied. It was found that the strength of the straw is largely determined by the number of vascular-fibrous bundles, as well as their diameter. It was the biggest on the variants with the increased fertilization background. It is noted that anatomical and morphological studies are needed in order to ensure the development of a more durable straw, which determines high resistance to lodging at a seeding rate of 3 and 1.5 million seeds/ha. Conclusions. On the basis of the conducted studies, it was found that the soil and climatic conditions of the years of the study and the factors that were studied have a direct influence on the anatomical and morphological parameters of wheet. At the same time, the best conditions for the maximum realization of the potential of the Patros hybrid of winter wheat plants were created in the experimental variants with a seeding rate of 3 and 1.5 million seeds/ha, ensuring the development of a more durable straw, which led to a high resistance to lodging.


2020 ◽  
Vol 28 (1) ◽  
pp. 24-28
Author(s):  
A. P. Palyi ◽  
A. N. Makshei ◽  
O. I. Kasianenko ◽  
R. V. Petrov ◽  
L. I. Faly ◽  
...  

As a result of research in the territory of livestock farms, 103 species of predatory Coleoptera were found, including Staphylinidae accounting for 51.4%, Histeridae – 27.3%, Carabidae – 21.3%. A total of 39 species of the Staphylinidae family were identified, belonging to 5 subfamilies: Oxytelinae, Steninae, Staphylininae, Tachyporinae, Aleocharinae. Species composition of staphylinids varied in relation to the types of animal rearing premises. In cowsheds and calf pens species diversity was higher (35 species). To study the peculiarities of feeding in laboratory conditions, we monitored 9 species of Staphylinidae: Philonthus addendus Sharp, Ph. cruentatus (Gmel.), Ph. rectangulus Sharp, Ph. varians (Payk.), Ph. spinipes Sharp, Ph. nitidus F., Creophilus maxillosus (L.), Ontholestes murinus (L.), Oxytelus sp. Feeding specialization of imagoes and larvae of different ages was studied. We determined that the mass of food consumed per day is higher than the weight of the beetles. Large species of staphylinids prefer feeding on average-aged larvae of flies and can eat puparia. Peculiarities of the development of coprophilous staphylinids were studied on the example of Ph. spinipes Sharp. During 24 h a female laid 1–3 eggs (in +28°С). Duration of the egg phase depends on the temperature regime (in +20 °С – 4–5, +28 °С – 3–4 days). Cessation of egg laying was observed with decrease in the temperature to +14 °С. The development takes part in three larval stages. Duration of the larva phase at +28 °С was 8–10 days, at +20 °С – 13–14 days. The first moulting was observed on the 2–3th days (in +28 °С) after the larvae emerged from the eggs. At +28 °С the pupa phase lasted 8–10 days. Decrease in temperature prolonged the rate of the development. At +24 °С it practically did not change (9–10 days), at +18 °С – increased to 13–15 days.


Author(s):  
I. Makhovskyi ◽  
V. Fedorenko

The results of taking into account the species composition of phytophages that winter in leaf litter near the sugar beet plantations in the conditions of the Right-bank Forest-Steppe of Ukraine are presented. Among the phytophagous that wintered in the leaf litter and caused harm to the sugar beet crop, beet blisters (Chaetocnema concinna Mrsch.) 3 specimens / m2 and usual beetroot weevil (Asproparthenis (Botynoderes) punctiventris Germ.)) Was found to be 0.13 / m2, and other phytophages and entomophages.


2020 ◽  
Vol 10 (5) ◽  
pp. 76-80
Author(s):  
O.Yu. Karpenko ◽  
V.M. Rozhko ◽  
A.O. Butenko

The results of studying the influence of different systems of agriculture and measures of basic tillage on the number of microorganisms and its phytotoxicity in the field of winter wheat are presented. It is proved that different systems of agriculture and measures of basic tillage do not equally affect the microbiological activity of the rhizosphere of winter wheat in the number and species composition of microorganisms. As a result, the variants created different conditions for the course of biochemical processes in the soil and the formation of crop yields. Moldboard-boardless tillage and the ecological system of agriculture proved to be more promising.


Author(s):  
V. Kudla ◽  
G. Tkalenko ◽  
V. Ignat

Goal. To monitor the species composition of the harmful entomocomplex of onions and determine the effectiveness of modern insecticides in different ways of their application (spraying and seed treatment). Methods. Laboratory and field studies were carried out according to generally accepted methods and using classical methods of entomology; vario-statistical analysis. Results. It has been established that on the crops of the onion of the onion in the right bank forest-steppe of Ukraine, 11 species of phytophages are dominated by the most numerous: Delia antigua Mg., Trips tabaci Lind., Ceuthorrhynchus jakovlevi Schultze and Eumerus strigatus Fall. Species composition of pests on the hybrids of antelope F1, Dyton F1, Bank F1 and Halkodon varieties and the globe was the same, but the number was significantly different. The hybrids of the foreign selection, the size of the onion flies was at a level of 3.5—12.7 l./р., And on the varieties of Halcodon and the globe — 5.1—16.6 l./р. It was investigated that the technical efficiency of onion seed disinfectants was: Cruiser 350 FS, because — 79.3% and Celeste Top 312.5 FS, TH — 71.7%. The greatest technical efficiency of the tested insecticides against the dominant phytophages with double spraying of onion crops was provided by Engio 247 SC, KS — 78.5% and Lannat, 20 RK — 74.6%. Conclusions. It was found that the use of seed disinfectants drugs Cruiser 350 FS, because (0.15 l/t) and Celest Top 312.5 FS, TN (0.1 l/t) and two treatments with Engio 247SC, KS (0.18 l/ha) provide protection of onion crops from pests and their control, both in the initial stages of development and during the growing season.


Author(s):  
Nina Gural-Sverlova

The taxonomic and ecological composition of the autochthonous land mollusc fauna in different parts of the plain Ukraine was analyzed on the basis of the personal data, collection materials of the State Museum of Natural History of the NAS of Ukraine in Lviv as well as numerous literature sources. Excluding representatives of the genus Helicopsis, the taxonomy and species composition of which in the territory of Ukraine still require clarification, and the steppe part of the Crimean peninsula, in four landscape zones of Ukraine, currently, a total of 109 species of land molluscs, which are autochthonous for at least part of the analyzed territory, are registered. The maximum species diversity (103 species and 2 representatives of the genus Helicopsis) is recorded in the zone of deciduous forests, followed by the right-bank part of the forest-steppe zone. The smallest number of the autochthonous species of land molluscs was noted for the right-bank part of the steppe zone. Within the Ukrainian Polesie and the forest-steppe zone of Ukraine, the taxonomic diversity of land molluscs decreases from west to east. The number of the registered autochthonous species decreases, respectively, by 1.5 and 1.7 times, and the generic diversity by 1.3 and 1.5 times. In the steppe zone, the main centre of the species diversity is the Donetsk Upland, located in the east of the country. In taxonomic and ecological composition, land mollusc complexes of the right-bank part of the forest-steppe zone are closer to the zone of deciduous forests, in its left-bank part – to the left-bank steppe. In general, the spatial differentiation of land mollusc fauna in the plain territories of Ukraine is more strongly associated not with the boundaries of landscaped zones, but with the location of these territories with respect to the Dnieper bed and with some uplands, where the species diversity of land molluscs of the zone of deciduous forests and forest-steppe zone (Podolian Upland) and the steppe zone (Donetsk Upland) is concentrated.


Author(s):  
N.О. Rudska

As a result of years of research considered alfalfa pollinator species composition agrocenosis and observed their effects on seed performance in Right-bank Forest Steppe of Ukraine. Found that entomokompleks insects that pollinate alfalfa consists of 16 species, but numerically dominate 5—8 species. Studied their daily activity, which has two peaks. Proved that reserve of natural pollinators of alfalfa is enough to implement biological yield potential of varieties at 800 kg/ha.


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