scholarly journals The effect of vegetation in apple orchard edges on the phenology of parasitoids from the subfamily Pimplinae (Hymenoptera, Ichneumonidae)

2020 ◽  
Vol 19 (5) ◽  
pp. 129-142
Author(s):  
Hanna Piekarska-Boniecka ◽  
Joanna Zyprych-Walczak ◽  
Idzi Siatkowski ◽  
Tadeusz Barczak

Wild vegetation neighbouring orchards may be a factor attracting imagines of parasitoids from the subfamily Pimplinae into fruit tree plantations and thus increase both their species diversity and population size in this habitat. For this reason in the years 2008–2010 a study was initiated on the phenology of 8 dominant Pimplinae species in apple orchards and on their edges, which included shrubberies and roadside avenues of trees and shrubs. Slightly higher numbers of Pimplinae were recorded in orchards compared to their edges. At strong correlation was observed between the counts of Pimplinae in both habitats. The preference of selection of orchards by Pimplinae was observed in the autumn period, while no such preference was found in the spring or summer months. Analyses showed that flowering plants in the orchard edges such as Tilia cordata, Symphoricarpos albus, Cirsium arvense and Galium aparine may have attracted Pimplinae to the orchards.

2020 ◽  
Vol 115 (2) ◽  
pp. 389
Author(s):  
Sergeja ADAMIČ ◽  
Stanislav TRDAN

Weed control by insects is increasingly important, as chemical weed control (the use of herbicides) has an important impact on the environment and, consequently, on all organisms living there. The use of insects to control weeds thus represents an alternative to herbicides. The article presents the suppression of some widespread and persistent weeds in Europe with their natural enemies - insects. The following combinations presented below are: broad-leaved dock (<em>Rumex obtusifolius</em> L.) – <em>Gastrophysa viridula</em> (De Geer, 1775), curly dock (<em>Rumex crispus</em> L.) – <em>Apion violaceum</em> (Kirby, 1808), common ragweed (<em>Ambrosia artemisiifolia</em> L.) – <em>Ophraella communa</em> (LeSage, 1986) and <em>Zygogramma suturalis</em> (Fabricius, 1775), creeping thistle (<em>Cirsium arvense</em> (L.) Scop.) – <em>Cassida rubiginosa</em> (Müller, 1776), cleavers (<em>Galium aparine</em> L.) – <em>Halidamia affinis</em> (Fallen, 1807) and <em>Sermylassa halensis</em> (Linnaeus, 1767), common knotgrass (<em>Polygonum aviculare</em> L.) and black-bindweed (<em>Fallopia convolvulus</em> L.) – <em>Gastrophysa polygoni</em> (Linnaeus, 1758) and as the last one field bindweed (<em>Convolvulus arvensis</em> L.) – <em>Galeruca rufa</em>  (Germar, 1824) and <em>Tyta luctuosa</em> (Denis in Schiffmuller, 1775).


Author(s):  
Olga M. Alekhina ◽  
Alina I. Anapolskaya ◽  
Yuliya S. Kanina

We present a legal regulation analysis of procedure for cutting down emergency trees and trees and shrubs located in the protected zone of the gas pipeline, which poses a threat to the safety and functioning of gas networks. The purpose of study is to determine the subjects and the proce-dure for cutting down emergency trees in the security zone of gas pipeline, as well as to assess the regulatory regulation of procedure for cutting down emergency trees in the security zone of gas pipeline, taking into account the balance of interests of gas distribution organizations, local authorities and citizens – owners of land plots. The research methodology is based on a sys-tematic approach in the analysis of the legal regulation of the subject of re-search, formal legal, logical methods of cognition, which together ensure the reliability and validity of conclusions and proposals on the algorithm for solving the issue of cutting down trees and shrubs in the protective zone of the gas pipeline. We conclude that there is variability in the regulation of the elimination of emergency trees, taking into account such conditions as the location of the gas pipeline security zone (ownership of territory) and the owner of the land plot on which the trees are located. We state that the pres-ence of tree plantations in the security zone of gas distribution networks is not prohibited by law, but there is a procedure for the owner of land plots and gas networks to remove trees that potentially pose a threat to the safety of the gas pipeline within the security zone. The legislation unambiguously determines that the person who is obliged to carry out work on cutting down trees and sawing off branches is the owner of the land plot. All work on cutting trees must be carried out taking into account the interests of the gas distribution organization, the owner of the gas pipeline and a real threat to the safety of the gas pipeline. We formulate recommendations for effective building of interaction between subjects interested in resolving the problems of finding emergency trees in the protected zone of the gas pipeline.


1994 ◽  
Vol 19 (1) ◽  
pp. 3-3
Author(s):  
George C. Hamilton ◽  
Dean Polk ◽  
Eugene Rizio

Abstract A 10 year-old apple orchard, variety ‘Red Delicious’ was used in this test. Single tree plots, replicated 4 times/variety in a randomized complete block design, were sprayed to runoff (ca 3 gal/tree) with a hydraulic sprayer equipped with a handgun operated at 200 psi. Treatments were applied at petal fall (PF—11 May), 5th cover (5th—12 Jun) and 6th cover (6th—3 Aug). The orchard was treated with Captan for disease control as needed. Weekly ERM counts were made by randomly selecting 20 leaves/tree, brushing mites onto glass plates coated with Triton B-1956, and counting motile ERM and AF. Mite-days (MD) were calculated as: MD = MD1 + [(Ml + M2)/2 × 7], where MD1 = mitedays already accumulated, Ml = avg ERM/leaf on a given sample date and M2 = avg ERM/leaf on the next sample date. Leafhoppers (White apple and/or Rose) were evaluated at 1,3, 7, 14, and 21 days post treatment using a 20 leaves/tree (PF) or 50 leaves/tree (5th and 6th) sample. Predatory coccinellids were sampled by 3 minute counts of larvae and adults. At harvest, 100 fruit/tree were collected and weighed, evaluated for spray injury, and rated (0%-100%) for russeting. Data were transformed to sqrt(x + 1) or arcsine(x) before ANOVA and comparison of means.


2016 ◽  
Vol 32 (2) ◽  
Author(s):  
O. S. Verma

Thanks to the space constraint, city homes can be docked with some live indoor plants and flowers. They add up not only to large amount of fresh oxygen but also absorbs Carbon Dioxide thus purifying the surrounding environment. Creepers like money plant enhanced the aura of the rooms. It is a myth that creepers damage the walls. In UK and China, people widely use Indian Ivy. It not only cools the building but also makes the building look so beautiful. Herbs like Tulsi busts the stress and its essential oils freshen up the mood. Different herbs like Italian Basic, Ajwain, Spearmint, Pudina, and Sri Lanka Palak are strong smelling plants that help in distracting insects and pests. Flowers like Roses enhance natural beauty and spread up fragrance to the house all around. Butterflies create a soothing havan as it attracts bees and birds. Bhindi, Corn, Chawli and flowering plants create a cross pollination. Fruits bring immense rewards both literal and emotional. Bonsai trees and shrubs make interiors beautiful and develop esthetical sharp appeal. Indoor gardening is also therapeutic as it is immensely relaxing. Plants heal the mind and the body. Little greenery in drawing room enables any one to feel like to be in the midst of forest or wilderness. Green rooftop is a panacia in this age of global warming. On a broaden perspective, Gardening is thus brewing in urban households and has become a movement no longer restricted to hinterlands. Let us examine what others say.


2015 ◽  
Vol 10 (3) ◽  
pp. 118-123
Author(s):  
Минниханов ◽  
Azat Minnikhanov

The article presents the results of research, devoted to the selection of trees and shrubs assortment for protective afforestation in the Republic of Tatarstan. The selection is based on the analysis of soil and climatic conditions of the region.


Author(s):  
Evgeny S. Boyko ◽  
◽  
Arsen V. Karagyan ◽  

This article is devoted to the study of tree and shrub vegetation of the Anapa-bay bar, which has a direct impact on the formation of landscape, and affects the processes of accumulation and transfer of matter. The materials of air laser scanning made it possible to perform automated calculation of all trees and shrubs. Their quantitative and qualitative analysis was performed. The study area is divided into sections depending on the nature of the landscape and vegetation. By processing laser scanning data and digital aerial photography, digital models of each tree and shrub above 0.7 m were construct-ed. For the selected areas, the number of all elements and the area of vegetation is calculated up to each tree. As a result, of the study, the method of software selection of tree and shrub vegetation with automatic receipt of attribute information about the height and diameter of vegetation crowns was tested.


2013 ◽  
Vol 48 (1) ◽  
pp. 15-24
Author(s):  
Ewa Stupnicka-Rodzynkiewicz

Studies on weed infestation of cereals with respect to the location of the field under various mountain conditions (bottom ofthe valley, slopes with different exposure, local top area) were carried out in the central part of the Dunajec valley in the Beskidy Mountains. Plant communities on the slopes and top area contained more species than those in the bottom of the valley. Coverage of soil by weeds on the slopes was also higher. However, slope exposure had no pronounced effect on the differentiation of weed composition. Dominating species in all area where the studies were carried out were: <em>Stellaria media, Galium aparine, Centaurea cyanus, Apera spica-venti and Cirsium arvense</em>.


2020 ◽  
Vol 73 ◽  
pp. 24-32
Author(s):  
Michael Cripps ◽  
Jovesa Navukula ◽  
Benjamin Kaltenbach ◽  
Chikako Van Koten ◽  
Seona Casonato ◽  
...  

The gall fly, Urophora stylata, was released in New Zealand in 1998 as a biocontrol agent for the thistle weed, Cirsium vulgare (Scotch thistle). In the summer of 2018, a survey was conducted to assess the field host range of the biocontrol agent in New Zealand.  A random selection of 18 pasture populations under sheep and/or beef production, where C. vulgare was present, was surveyed to quantify the attack intensity (gall size relative to seedhead size) on C. vulgare, and the presence of attack on other thistle weeds within the same population. At each location, seedheads were collected from C. vulgare and all other thistle species (Cardueae) present, which included Cirsium arvense (Californian thistle), Cirsium palustre (marsh thistle), Carduus nutans (nodding thistle), and an Arctium species (burdock). In addition to attack on C. vulgare, the gall fly was recorded on C. arvense (at six locations) and C. palustre (at one location). The probability of the presence of attack on C. arvense was positively correlated with the attack intensity on C. vulgare, suggesting that attack on C. arvense is a ‘spill-over effect’ occurring where seedheads of C. vulgare are in limited supply.


2020 ◽  
Vol 55 ◽  
Author(s):  
Michał Mordań

The World of Plants in the Dialectal Lexis of the Polish- Belarusian Borderland: An Analysis of A Dictionary of the Local Dialect of the Bielsk Podlaski Region (Słownik gwary bielsko-podlaszskiej)This article presents a lexical analysis of vocabulary related to plants used in the Polish-Belarusian borderland. Source material comes from A Dictionary of the Local Dialect of the Bielsk Podlaski Region (Słownik gwary bielsko-podlaszskiej / Slovnik hovu͡оrki b’el’sko-pudl’ashskuĭ) by Mikołaj Wróblewski. The method of semantic fields applied in the study made it possible to identify the following groups: (1) trees and shrubs (јалу͡овец’, кл’у́ква, лішчы́на); (2) grasses, herbs and flowering plants, vines (гурчы́ц’а, кон’ушы́на, піры͡еј, хву͡ошчка); (3) fruits and vegetables (а́γрест, ры͡епа, сала́та, цібу́л’а, чорні́ц’а); (4) cereals (јачмі͡ен’, кукуру́за, ове́с); (5) mushrooms (дро́пл’а, мухомо́ра, сіроjі͡ежка); (6) parts of plants (гу͡ол’ка, корене́ц’, стебло́); (7) habitats and plant communities (бере́зінка, джу́нгліја, пере́лісок); (8) other nouns (омела́, по́росл’, садзо́нка); (9) features, properties (вул’хо́вы, доздры͡елы, оры͡еховы, прысо́хлы); (10) processes, activities (вкорені́тіс’е, вы́цвісті, зопры͡еті, позел’ені͡еті).Świat roślin w leksyce gwarowej na pograniczu polsko-białoruskim (na materiale Słownika gwary bielsko-podlaszskiej) W artykule dokonano charakterystyki słownictwa z pogranicza polsko-białoruskiego, dotyczącego świata roślin. Materiał źródłowy zaczerpnięto ze Słownika gwary bielsko-podlaszskiej (Словніка гову͡оркі б’ел’ско-пудл’ашскуј) Mikołaja Wróblewskiego. Przy opisie posłużono się metodą pól semantycznych, która pozwoliła na wyodrębnienie następujących grup: 1. drzewa i krzewy (јалу͡овец’, кл’у́ква, лішчы́на); 2. trawy, rośliny zielne i kwiatowe, pnącza (гурчы́ц’а, кон’ушы́на, піры͡еј, хву͡ошчка); 3. owoce i warzywa (а́γрест, ры͡епа, сала́та, цібу́л’а, чорні́ц’а); 4. zboża (јачмі͡ен’, кукуру́за, ове́с); 5. grzyby (дро́пл’а, мухомо́ра, сіроjі͡ежка); 6. części roślin (гу͡ол’ка, корене́ц’, стебло́); 7. miejsca, zbiorowości (бере́зінка, джу́нгліја, пере́лісок); 8. inne nazwy rzeczownikowe (омела́, по́росл’, садзо́нка); 9. cechy, właściwości (вул’хо́вы, доздры͡елы, оры͡еховы, прысо́хлы); 10. procesy, czynności (вкорені́тіс’е, вы́цвісті, зопры͡еті, позел’ені͡еті).


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